[go: up one dir, main page]

EP1247310B1 - Radio transmitter/radio receiver unit comprising a tuneable antenna - Google Patents

Radio transmitter/radio receiver unit comprising a tuneable antenna Download PDF

Info

Publication number
EP1247310B1
EP1247310B1 EP00989808A EP00989808A EP1247310B1 EP 1247310 B1 EP1247310 B1 EP 1247310B1 EP 00989808 A EP00989808 A EP 00989808A EP 00989808 A EP00989808 A EP 00989808A EP 1247310 B1 EP1247310 B1 EP 1247310B1
Authority
EP
European Patent Office
Prior art keywords
dielectric
antenna
radio
receiving device
dielectric body
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00989808A
Other languages
German (de)
French (fr)
Other versions
EP1247310A1 (en
Inventor
Matthias Lungwitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1247310A1 publication Critical patent/EP1247310A1/en
Application granted granted Critical
Publication of EP1247310B1 publication Critical patent/EP1247310B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/14—Length of element or elements adjustable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element

Definitions

  • the invention relates to a radio transceiver with tunable antenna according to the generic term of Claim 1.
  • messages for example Language, image information or other data
  • the blasting the electromagnetic waves come from antennas, where the carrier frequencies, in that for the particular system provided frequency band.
  • antenna systems have hitherto been used to solve this problem in use, which consist of several antennas, each of which which covers a certain frequency range.
  • DE 40 25 766 A1 describes an electronically controllable antenna known with a thin film structure, in which between a base plate and a circuit board an insulating material which is, for example, a liquid crystal dielectric, which is stored in a plastic, is enclosed, where the relative dielectric constant and / or permeability in the high frequency range in accordance with a applied electromagnetic field can be changed and wherein the dielectric constant and / or permeability through a direct voltage or low frequency electromagnetic Waves are changed such that an impedance matching and a resonance frequency of the antenna can be optimized are.
  • an insulating material which is, for example, a liquid crystal dielectric, which is stored in a plastic
  • the object underlying the invention is a To design radio transceiver in such a way that, when covering a large frequency range, a almost constant stable antenna gain guaranteed.
  • the radio transmitter / radio receiver device has a first electrically active antenna body in the vicinity of which there is a dielectric body is arranged, near range means that the dielectric Body to the antenna body with respect to wavelengths one permitted for the mobile radio transceiver Wavelength range has a distance such that the phase delays resulting from the distance none changed compared to the desired radiation pattern Generate radiation characteristics.
  • the dielectric Body is designed such that its dielectric is due to at least one control signal from a control device is generated as an output signal, are changed can.
  • the control signal is as long as the control device generated until the dielectric design Body sets a dielectric of the dielectric body, which has an optimal value of at least one physical, a function of the transmission / reception quality of the radio transceiver performing, size guaranteed, those recorded by the detection means and sent to the control device, as an input signal, is passed on, whereby an optimal value, particularly due to the dimensioning of the electronic components of the radio transceiver can be predetermined or limited, then is given when the value of the physical is a function the transmission / reception quality of the radio transceiver representative size allows the conclusion that the transmission / reception quality - especially in the context of given the possibility of dimensioning - maximum is.
  • a major advantage of the mobile radio transmitter / receiver device is a largely stable antenna gain in a wide frequency range by regulation to an optimal value representing the quality of reception Size (n) by varying the dielectric of the dielectric body in the vicinity, i.e. in the immediate Proximity, the antenna body is achieved, neither the antenna (the antenna body) still moves the dielectric body need to be what space needed as well as manufacturing costs reduced.
  • Another significant advantage of the mobile radio transmitting / receiving antenna according to claim 1 is the cost-effective realization of the dielectric body with changeable dielectric because ferromagnetic Domains a change in the dielectric of the afflicted with them dielectric body by an external DC field learn which one using the first Layer as an electrical pole and the first electrical Antenna body as a second electrical pole only through Applying a DC voltage can be generated so that only a control signal is required.
  • the development according to claim 2 enables on the one hand Protection of the first layer against external influences, it can but also especially if it is the first shift is an electrolyte, fix the first layer.
  • a major advantage of further training according to claim 4 is the high dielectric constant that ceramic has, because the frequency range in which the antenna is tuned and therefore can be used, proportional to the level of the dielectric constant of the hollow body used grows and the Acquisition costs are low because ceramic bodies, in particular with ferromagnetic domains, in large numbers are produced, for example as a body for resonators and capacitors.
  • a major advantage of further training according to claim 3 is the minimization of undirected external influences, because the greater the electrically effective Antenna length of an antenna is.
  • a major advantage of the training according to claim 4 is minimizing directional electrical interference the antenna by the user, especially his head and his hands, the radio transceiver and vice versa.
  • the main advantage of further training according to claim 8, is the possible use of the mobile radio transceiver in a frequency range in which the ratio the highest to the lowest frequency at least 1.5 Is octaves.
  • the detection of the leading transmission power or the returning Transmission power according to claim 9 as a physical one Function of the transmission / reception quality of the radio transceiver performing size allows for easy Realization of the regulation (adaptation) of the antenna because of this already existing in the radio transceiver Means can be used.
  • the development according to claim 10 realizes a filter, for example a helix filter that tunes an antenna allows within a wide frequency range without to have to change the structure of the antenna.
  • FIGURE 1 shows a mobile radio transceiver SE with a transmit / receive antenna designed as a rod antenna SA, a maximum radio-effective antenna length l max being determined by the length of the rod antenna SA.
  • rod SB Parallel to the longitudinal axis of the rod antenna SA is a rod SB designed dielectric body DK arranged.
  • the distance the rod SB should not have any wavelength have too large a distance, because of the otherwise occurring different phase delays a different radiation pattern compared to that for rod antennas (monopole antennas) usual radiation pattern results.
  • the permissible for the radio transceiver Wavelengths result (via the known frequency-wavelength-speed of light relationship) out in the by frequencies contained in the antenna range to be covered.
  • the dielectric body DK can be any one have a different geometric shape. It is only essential that the dielectric body DK is in the near field of the antenna, the antenna is detuned by the fact that the Dielectric constant of the dielectric body DK varies is so that it is tuned to the current frequency.
  • How to choose the geometric shape depends in particular on the antenna or its shape and can for example can be determined by simulation or by experimental setups.
  • the frequency range covered is greater, the larger the interval of the adjustable dielectric of the dielectric body DK, the dielectric body DK having to have a very high dielectric constant (preferably ⁇ r approx. 200) in the idle state - i.e. there is no DC field , which can be ensured in particular by using a dielectric body DK with a high dielectric constant and / or by increasing the volume of the dielectric body DK to be used.
  • a very high dielectric constant preferably ⁇ r approx. 200
  • the dielectric body DK has to be made of ceramic, for example, since ceramics, in particular those with ferromagnetic domains, can be produced with a required high dielectric constant of, for example, ⁇ r approx. 200.
  • the dielectric rod SB is made of ceramic and has so-called ferromagnetic domains, i.e. the ceramic is like this designed to have areas with atomic magnetic Has dipoles that occur spontaneously or through external electrical Influence, can be predominantly parallel, so that magnetic domains arise. Because ferromagnetic domains are susceptible to electrical influences DC field has an influence on the dielectric of the dielectric rod SB. To the dielectric rod SB with the ferromagnetic domains a DC field to be able to expose is the dielectric rod SB with an electrically conductive first layer S1, which however, an alternating electrical field, for example radiation the antenna, not affected. As material for the first Layer S1 would therefore be, for example, an electrolyte or the material graphite is conceivable.
  • the DC voltage field required to influence the dielectric is achieved by applying a DC voltage U ST to the rod antenna SA in such a way that the rod antenna SA forms a pole of the electrical DC voltage field and the first layer S1 forms the second pole - opposite pole - of the electrical DC voltage field, the first Layer S1 via a high-resistance resistor R1 - resistance value that is much greater than 50 ⁇ - with an electrical zero potential - ground - is connected.
  • the high first resistance ensures that transmit / receive signals via the rod antenna SA, despite that with a conductive Material encased dielectric body, which is in the Near field of the rod antenna SA is located, transmitted unhindered or can be received.
  • the voltage U ST can be applied, for example, together via an RF connection, which is necessary for the transmission of an RF signal, a circuit EN, for example a series connection, for decoupling between the RF connection and a connection for the DC voltage U ST a second resistor R2 and a first coil SP1 is provided.
  • a circuit EN for example a series connection, for decoupling between the RF connection and a connection for the DC voltage U ST a second resistor R2 and a first coil SP1 is provided.
  • a second layer S2 protects the first layer S1, in particular from external influences, but is, especially if that Material of the first layer is an electrolyte, also one Device that prevents this material from escaping to the outside.
  • the second layer S2 should have a very low dielectric constant have a dielectric at least almost exhibits neutral behavior.
  • the DC voltage U ST is a signal (control signal) present at the output of a control unit (microprocessor) ⁇ P, the amount, sign and / or signal duration of which depends on the input variable EQ present on the control unit ⁇ P.
  • the control unit ⁇ P controls or varies the dielectric through the direct voltage U ST until a physical input variable EQ representing the reception quality of the radio transceiver SE has reached an ideal value (optimum).
  • the DC voltage U ST is brought to the rod antenna via means for decoupling EN, so that an electrical charge is stored on the surface of the rod antenna and, with the first layer connected to the zero potential, as a counter pole, generates a DC voltage field that the dielectric of the dielectric Body changes.
  • the surface of the rod antenna SA must therefore also be dimensioned in this way be that one for the generation of the DC voltage field necessary electrical charge can be stored.
  • the dimensioning of the individual physical quantities (dielectric at rest, surface of the antenna etc.) the Circuit can be determined, for example, by means of circuit simulation and optimized after using a prototype.
  • a DC voltage U ST is first generated, which generates a predetermined value of the dielectric to be set (default value) and increases this value continuously, so that the dielectric also changes continuously. If the evaluation shows that the input variable EQ deviates from the ideal value, the DC voltage value U ST is reached until the input variable EQ has reached the ideal value.
  • the control unit receives the possibly processed input variable EQ ⁇ P of funds EFM for the acquisition of physical from Overlap measure M dependent input quantities EQ, by these Means, if necessary, in a necessary for the control unit ⁇ P Shape to be transformed.
  • the EFM means also cover several physical ones Input variables EQ and, if necessary, prepare them before they start the control unit ⁇ P are forwarded, the control unit ⁇ P corresponding to several input variables upon reaching check an ideal value.
  • FIG. 2 shows a mobile radio transceiver SE with a transmission / reception antenna designed as a rod antenna SA, with a maximum radio-effective antenna length l max being determined by the length of the rod antenna SA.
  • the Diameter of the hollow body HK should be chosen so that the side walls of the hollow body in relation to the wavelength do not have too large a distance, because of the otherwise occurring different phase delays a different radiation pattern compared to that for rod antennas (monopole antennas) usual radiation pattern results.
  • the hollow body faces like that described in FIG. 1 Embodiment ferromagnetic domains on and is also with a first layer S1 and a second Layer S2 coated.
  • This voltage U ST is a signal (control signal) present at the output of a control unit (microprocessor) ⁇ P, the magnitude, sign and / or signal duration of which is dependent on the input variable EQ present at the control unit ⁇ P.
  • the input variable EQ is provided by the means of registration provided determined.
  • These detection means EFM can be designed in such a way that they have a directional coupler RK, which consists of a transmission signal a leading transmission power and a returning Decouples transmission power (this configuration of the detection means can also in the embodiment described in Figure 1 of the invention).
  • the leading transmission power is then first of all first rectifier rectified and the rectified leading transmission power is then from a first Analog / digital converter converted into a first digital signal.
  • the returning transmission power is from a second Rectifiers rectified and the rectified returning Then transmit power from a second analog / digital converter converted into a second digital signal.
  • the digital signals are input to the control unit ⁇ P on, the control unit ⁇ P for example as (Micro) processor is designed with associated software.
  • the processor ⁇ P checks the incoming digital signals, whether the signals each have an ideal value - no retrograde Transmission power or minimum returning transmission power and maximum forward transmission power - have reached.
  • the processor ⁇ P first increases the value of the current DC voltage U ST, for example, so that the dielectric of the hollow body changes, in particular based on the default value.
  • the processor checks the input signals changed by this process - forward and returning transmission power - which are applied to the processor with regard to the ideal values to be achieved. If the values of the signals - forward and returning transmission power - have deteriorated with a view to reaching the ideal values, the value of the DC voltage U ST is continuously reduced, for example. This can even lead to the reversal of the sign of the signal U ST .
  • the DC voltage U ST is generated as long as, following the determination of the correct direction until the modified by the product resulting from the direct voltage U ST DC field dielectric ensures that forward and reverse transmission power have reached their ideal values.
  • only one of the two variables - forward transmission power or returning transmission power P R - can be used as a control variable for this control loop, i.e. detected by the EFM means and by the processor ⁇ P when the ideal values are reached - minimum or no returning transmission power or maximum forwarding transmission power - be checked.

Landscapes

  • Transceivers (AREA)
  • Details Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Support Of Aerials (AREA)
  • Waveguide Aerials (AREA)

Abstract

A radio transmitter and receiver is provided having an electrically acting antenna body in whose near region a dielectric body is arranged, with the dielectric constant of the dielectric body being varied by at least one control signal to ensure an optimum value for at least one physical variable representing a function of the transmission/reception quality of the radio transmitter and receiver.

Description

Die Erfindung betrifft eine Funk-Sende-/Funk-Empfangseinrichtung mit abstimmbarer Antenne nach dem Oberbegriff des Anspruchs 1.The invention relates to a radio transceiver with tunable antenna according to the generic term of Claim 1.

In Funk-Kommunikationssystemen werden Nachrichten (beispielsweise Sprache, Bildinformation oder andere Daten) mit Hilfe von elektromagnetischen Wellen übertragen. Das Abstrahlen der elektromagnetischen Wellen erfolgt durch Antennen, wobei die Trägerfrequenzen, in dem für das jeweilige System vorgesehenen Frequenzband liegen.In radio communication systems, messages (for example Language, image information or other data) with Transmitted with the help of electromagnetic waves. The blasting the electromagnetic waves come from antennas, where the carrier frequencies, in that for the particular system provided frequency band.

Neben der Forderung, daß bei mobilen Funk-Sende-/Funk-Empfangseinrichtungen die Abmessungen der Antenne zu begrenzen sind, besteht auch in zunehmendem Maße die Forderung nach der Sende-/Empfangsfähigkeit in unterschiedlichen Frequenzbereichen. Aus diesem Grunde werden Antennen benötigt, die in mehreren Frequenzbereichen nutzbar sind.In addition to the requirement that in mobile radio transceivers limit the dimensions of the antenna are, there is also an increasing demand for the Sending / receiving capability in different frequency ranges. For this reason antennas are required, which are in several Frequency ranges are usable.

Mit herkömmlichen Antennen, beispielsweise stabförmigen Antennen, die insbesondere in Mobilteilen eingesetzt werden, kann die geforderte Abdeckung eines möglichst großen Frequenzbereiches bzw. mehrerer Frequenzbänder nicht gewährleistet werden, daß die Impedanz und Antennengewinn der Antenne in Abhängigkeit der Frequenz stark variiert, so daß ein Einsatz der Antenne in bestimmten Frequenzbereichen nicht möglich ist.With conventional antennas, for example rod-shaped antennas, which are used especially in handsets, can cover the widest possible frequency range or multiple frequency bands not guaranteed that the impedance and antenna gain of the antenna varies greatly depending on the frequency, so an insert the antenna is not possible in certain frequency ranges is.

Daher sind zur Lösung dieses Problems bisher Antennensysteme im Einsatz, die aus mehreren Antennen bestehen, von denen jeweils eine einen bestimmten Frequenzbereich abdeckt.Therefore, antenna systems have hitherto been used to solve this problem in use, which consist of several antennas, each of which which covers a certain frequency range.

Nachteilig bei derartigen Antennensystemen ist einerseits der erhöhte Platzbedarf sowie anderseits eine suboptimale Anpassung der Antennen an die einzelnen Frequenzen aus dem jeweiligen Frequenzband.One disadvantage of such antenna systems is that increased space requirements and on the other hand a suboptimal adjustment of antennas to the individual frequencies from each Frequency band.

Aus der DE19943118 A1 bzw. WO 01/18107 A1 sowie der DE19919107 A1 bzw. WO 00/65 685 A1 sind jeweils abstimmbare Antennen bekannt, wobei die Abstimmung der Antenne abhängig von mindestens einer eine Funktion der Sende/Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung (SE) darstellenden Größe mit Hilfe von Verstellmitteln durchgeführt wird.From DE19943118 A1 and WO 01/18107 A1 and DE19919107 A1 and WO 00/65 685 A1, respectively, are tunable Antennas known, the tuning of the antenna depending of at least one a function of the transmission / reception quality the radio transceiver (SE) representing the size with the help of adjusting means becomes.

Nachteilig bei derartigen Systemen ist die Abnutzung mechanisch belasteter beweglicher Bauelemente (Verstellmittel) und die damit verbundene erhöhte Ausfallwahrscheinlichkeit.The disadvantage of such systems is mechanical wear loaded moving components (adjusting means) and the associated increased probability of failure.

Aus der DE 40 25 766 A1 ist eine elektronische steuerbare Antenne mit einer Dünnschichtstruktur bekannt, bei der zwischen einer Grundplatte und einer Leiterplatte ein Isoliermaterial welches beispielsweise ein Flüssigkeitskristall-Dielektrikum, welches in einem Kunststoff gelagert ist, eingeschlossen ist, wobei die relative dielektrische Konstante und/oder Permeabilität im Bereich hoher Frequenzen in Übereinstimmung mit einem angelegten elektromagnetischen Feld verändert werden können und wobei die dielektrische Konstant und/oder Permeabilität durch ein Gleichspannungs- oder niederfrequentes elektromagnetische Wellen derart verändert wird, dass eine Impedanzanpassung und eine Resonanzfrequenz der Antenne optimierbar sind.DE 40 25 766 A1 describes an electronically controllable antenna known with a thin film structure, in which between a base plate and a circuit board an insulating material which is, for example, a liquid crystal dielectric, which is stored in a plastic, is enclosed, where the relative dielectric constant and / or permeability in the high frequency range in accordance with a applied electromagnetic field can be changed and wherein the dielectric constant and / or permeability through a direct voltage or low frequency electromagnetic Waves are changed such that an impedance matching and a resonance frequency of the antenna can be optimized are.

Die der Erfindung zugrunde liegende Aufgabe ist es, eine Funk-Sende-/Funk-Empfangseinrichtung derart auszugestalten, daß sie, bei Abdeckung eines großen Frequenzbereiches, einen nahezu gleichbleibenden stabilen Antennengewinn gewährleistet.The object underlying the invention is a To design radio transceiver in such a way that, when covering a large frequency range, a almost constant stable antenna gain guaranteed.

Diese Aufgabe wird durch Merkmale des Patentanspruches 1 gelöst. This object is solved by the features of claim 1.

Die erfindungsgemäße Funk-Sende-/Funk-Empfangseinrichtung gemäß Anspruch 1 weist einen ersten elektrisch wirksamen Antennenkörper auf, in dessen Nahbereich ein dielektrischer Körper angeordnet ist, wobei Nahbereich bedeutet, daß der dielektrischen Körper zum Antennenkörper im Bezug auf Wellenlängen aus einem für die mobile Funk-Sende-/Funk-Empfangseinrichtung zulässigen Wellenlängenbereich einen Abstand derart aufweist, daß sich die durch den Abstand ergebende Phasenlaufzeiten keine gegenüber der gewünschten Abstrahlcharakteristik geänderte Abstrahlcharakteristiken erzeugen. Der dielektrische Körper ist derart ausgestaltet, daß seine Dielektrizität aufgrund mindestens eines Steuersignales, das von einer Regeleinrichtung als Ausgangssignal erzeugt wird, geändert werden kann. Das Steuersignal wird von der Regeleinrichtung solange erzeugt, bis sich durch die Ausgestaltung dies dielektrischen Körpers eine Dielektrizität des dielektrischen Körpers einstellt, der einen optimalen Wert mindestens einer physikalischen, eine Funktion der Sende-/Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung darstellenden, Größe gewährleistet, die von Erfassungsmitteln erfaßt und an die Regeleinrichtung, als Eingangssignal, weitergeleitet wird, wobei ein optimaler Wert, der insbesondere durch die Dimensionierung der elektronischen Bauelemente der Funk-Sende-/Funk-Empfangseinrichtung vorgegeben bzw. begrenzt sein kann, dann gegeben ist, wenn der Wert der physikalischen eine Funktion der Sende-/Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung darstellenden Größe den Rückschluß zuläßt, daß die Sende-/Empfangsqualität- insbesondere im Rahmen der durch die Dimensionierung gegebenen Möglichkeit - maximal ist.The radio transmitter / radio receiver device according to the invention Claim 1 has a first electrically active antenna body in the vicinity of which there is a dielectric body is arranged, near range means that the dielectric Body to the antenna body with respect to wavelengths one permitted for the mobile radio transceiver Wavelength range has a distance such that the phase delays resulting from the distance none changed compared to the desired radiation pattern Generate radiation characteristics. The dielectric Body is designed such that its dielectric is due to at least one control signal from a control device is generated as an output signal, are changed can. The control signal is as long as the control device generated until the dielectric design Body sets a dielectric of the dielectric body, which has an optimal value of at least one physical, a function of the transmission / reception quality of the radio transceiver performing, size guaranteed, those recorded by the detection means and sent to the control device, as an input signal, is passed on, whereby an optimal value, particularly due to the dimensioning of the electronic components of the radio transceiver can be predetermined or limited, then is given when the value of the physical is a function the transmission / reception quality of the radio transceiver representative size allows the conclusion that the transmission / reception quality - especially in the context of given the possibility of dimensioning - maximum is.

Ein wesentlicher Vorteil der erfindungsgemäßen mobilen FunkSender-/Empfangseinrichtung ist ein weitgehend stabiler Antennengewinn in einem großen Frequenzbereich, der durch die Regelung auf einen optimalen Wert der die Empfangsqualität darstellenden Größe(n) mittels Variation der Dielektrizität des dielektrischen Körpers im Nahbereich, d.h. in unmittelbarer Nähe, des Antennenkörpers erzielt wird, wobei weder die Antenne (der Antennenkörper) noch der dielektrische Körper bewegt werden müssen, was benötigten Raum sowie Hersteilungskosten reduziert.A major advantage of the mobile radio transmitter / receiver device according to the invention is a largely stable antenna gain in a wide frequency range by regulation to an optimal value representing the quality of reception Size (n) by varying the dielectric of the dielectric body in the vicinity, i.e. in the immediate Proximity, the antenna body is achieved, neither the antenna (the antenna body) still moves the dielectric body need to be what space needed as well as manufacturing costs reduced.

Ein weiterer wesentlicher Vorteil der mobilen Funk-Sende-/Empfangsantenne gemäß Anspruch 1 ist die kostengünstige Realisierung des dielektrischen Körpers mit veränderbarer Dielektrizität, da ferromagnetische Domänen eine Änderung der Dielektrizität des mit ihnen behafteten dielektrischen Körpers durch ein äußeres Gleichspannungsfeld erfahren, welches unter Verwendung der ersten Schicht als einen elektrischen Pol und des ersten elektrischen Antennenkörpers als zweiten elektrischen Pol nur durch Anlegen einer Gleichspannung erzeugt werden kann, so daß nur ein Steuersignal erforderlich ist.Another significant advantage of the mobile radio transmitting / receiving antenna according to claim 1 is the cost-effective realization of the dielectric body with changeable dielectric because ferromagnetic Domains a change in the dielectric of the afflicted with them dielectric body by an external DC field learn which one using the first Layer as an electrical pole and the first electrical Antenna body as a second electrical pole only through Applying a DC voltage can be generated so that only a control signal is required.

Die Weiterbildung gemäß Anspruch 2 ermöglicht zum einen den Schutz der ersten Schicht vor äußeren Einflüssen, sie kann aber auch insbesondere, wenn es sich bei der ersten Schicht um einen Elektrolyten handelt, die erste Schicht fixieren. Ein wesentlicher Vorteil der Weiterbildung nach Anspruch 4 ist die hohe Dielektrizitätszahl, die Keramik aufweist, da der Frequenzbereich, in der die Antenne durchgestimmt und damit verwendet werden kann, proportional mit der Höhe der Dielektrizitätszahl des verwendeten Hohlkörpers wächst und die Anschaffungskosten gering sind, da Keramikkörper, insbesondere mit ferromagnetischen Domänen versehene, in hoher Zahl produziert werden, beispielsweise als Körper für Resonatoren und Kondensatoren.The development according to claim 2 enables on the one hand Protection of the first layer against external influences, it can but also especially if it is the first shift is an electrolyte, fix the first layer. A major advantage of further training according to claim 4 is the high dielectric constant that ceramic has, because the frequency range in which the antenna is tuned and therefore can be used, proportional to the level of the dielectric constant of the hollow body used grows and the Acquisition costs are low because ceramic bodies, in particular with ferromagnetic domains, in large numbers are produced, for example as a body for resonators and capacitors.

Ein wesentlicher Vorteil der Weiterbildung nach Anspruch 3 ist das Minimieren von ungerichteten äußeren Einflüssen, da sich diese stärker auswirken je größer die elektrisch wirksame Antennenlänge einer Antenne ist.A major advantage of further training according to claim 3 is the minimization of undirected external influences, because the greater the electrically effective Antenna length of an antenna is.

Wesentlicher Vorteil der Weiterbildung gemäß Anspruch 4 ist das Minimieren einer gerichteten elektrischen Beeinflussung der Antenne durch den Benutzer, insbesondere seines Kopfes und seiner Hände, der Funk-Sende-/Funk-Empfangseinrichtung und umgekehrt.A major advantage of the training according to claim 4 is minimizing directional electrical interference the antenna by the user, especially his head and his hands, the radio transceiver and vice versa.

Wesentliche Vorteile der Weiterbildung gemäß Anspruch 5 sind Flexibilität und Aktualisierungsmöglichkeit der Umsetzung der Regelung, die durch den Einsatz von (Regelsoftware-)Software ermöglicht wird sowie die Möglichkeit, bereits vorhandene Prozessoren für die Steuerung der erfindungsgemäßen mobilen Funk-Sende-/Funk-Empfangseinrichtung durch den Einsatz von zusätzlicher bzw. Anpassung der vorhandenen Software zu nutzen. The main advantages of further training according to claim 5 are Flexibility and possibility to update the implementation of the Regulation through the use of (control software) software is made possible as well as the possibility of already existing Processors for controlling the mobile according to the invention Radio transmission / reception device through the use of to use additional or adapt existing software.

Wesentliche Vorteile der Weiterbildung nach Anspruch 6 sind die einfache und günstige Realisierung der Regeleinheit sowie die Möglichkeit, dieses Schaltwerk als integrierte Schaltung in einen Erweiterungsbaustein zu implementieren.The main advantages of further training according to claim 6 are the simple and inexpensive implementation of the control unit as well the possibility of this rear derailleur as an integrated circuit to implement in an expansion module.

Durch die Weiterbildung gemäß Anspruch 7 wird ein gesendetes bzw. empfangenes Signal weitestgehend von störenden Einflüssen durch das Steuersignal UST geschützt.Through the development according to claim 7, a transmitted or received signal is largely protected from interfering influences by the control signal U ST .

Der wesentliche Vorteil der Weiterbildung nach Anspruch 8, ist der damit mögliche Einsatz der mobilen Funk-Sende-/Funk-Empfangseinrichtung in einem Frequenzbereich, in dem das Verhältnis der höchsten zur niedrigsten Frequenz mindesten 1,5 Oktaven beträgt.The main advantage of further training according to claim 8, is the possible use of the mobile radio transceiver in a frequency range in which the ratio the highest to the lowest frequency at least 1.5 Is octaves.

Das Erfassen der vorlaufenden Sendeleistung bzw. rücklaufenden Sendeleistung gemäß Anspruch 9 als physikalische eine Funktion der Sende-/Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung darstellende Größe ermöglicht eine Einfache Realisierung der Regelung (Anpassung) der Antenne, da dazu in der Funk-Sende-/Funk-Empfangseinrichtung bereits vorhandene Mittel genutzt werden können.The detection of the leading transmission power or the returning Transmission power according to claim 9 as a physical one Function of the transmission / reception quality of the radio transceiver performing size allows for easy Realization of the regulation (adaptation) of the antenna because of this already existing in the radio transceiver Means can be used.

Die Weiterbildung gemäß Anspruch 10 realisiert einen Filter, beispielsweise einen Helixfilter, der ein Abstimmen einer Antenne innerhalb eines großen Frequenzbereichs ermöglicht, ohne den Aufbau der Antenne verändern zu müssen.The development according to claim 10 realizes a filter, for example a helix filter that tunes an antenna allows within a wide frequency range without to have to change the structure of the antenna.

Ausführungsbeispiele der Erfindung werden anhand der FIGUREN 1 bis 2 erläutert. Dabei zeigen:

FIGUR 1
Mobile Funk-Sende-/Funk-Empfangseinrichtung mit Stabantenne, bei der ein als Stab ausgestalteter dielektrischer Körper parallel zur Antenne angeordnet wird, die Dielektrizität des dielektrischen Körpers durch eine über eine Schaltung der Stabantenne zugeführte Gleichspannung variiert werden kann.
FIGUR 2
Mobile Funk-Sende-/Funk-Empfangseinrichtung mit Stabantenne, die von einem als Hohlzylinder ausgestalteten dielektrischen Körper umschlossen wird (in Schnittdarstellung), wobei die Dielektrizität des dielektrischen Körpers durch eine über eine Schaltung der Stabantenne zugeführte Gleichspannung variiert werden kann.
Exemplary embodiments of the invention are explained with reference to FIGURES 1 to 2. Show:
FIGURE 1
Mobile radio transceiver with rod antenna, in which a dielectric body designed as a rod is arranged parallel to the antenna, the dielectric of the dielectric body can be varied by a DC voltage supplied via a circuit of the rod antenna.
FIGURE 2
Mobile radio transceiver with rod antenna which is enclosed by a dielectric body designed as a hollow cylinder (in a sectional view), the dielectric of the dielectric body being able to be varied by means of a DC voltage supplied via a circuit of the rod antenna.

FIGUR 1 zeigt eine mobile Funk-Sende-/Funk-Empfangseinrichtung SE mit einer als Stabantenne SA ausgebildete Sende/Empfangsantenne, wobei eine maximale funktechnisch wirksame Antennenlänge lmax durch die Länge Stabantenne SA bestimmt ist.FIGURE 1 shows a mobile radio transceiver SE with a transmit / receive antenna designed as a rod antenna SA, a maximum radio-effective antenna length l max being determined by the length of the rod antenna SA.

Parallel zur Längsachse der Stabantenne SA ist ein als Stab SB ausgestalteter dielektrischer Körper DK angeordnet. Der Abstand des Stabes SB sollte im Bezug auf die Wellenlänge keinen zu großen Abstand haben, da durch die sonst auftretenden unterschiedlichen Phasenlaufzeiten sich eine andere Abstrahlcharakteristik gegenüber der für Stabantennen (Monopolantennen) üblichen Abstrahlcharakteristik ergibt.Parallel to the longitudinal axis of the rod antenna SA is a rod SB designed dielectric body DK arranged. The distance the rod SB should not have any wavelength have too large a distance, because of the otherwise occurring different phase delays a different radiation pattern compared to that for rod antennas (monopole antennas) usual radiation pattern results.

Die für die Funk-Sende-/Funk-Empfangseinrichtung zulässigen Wellenlängen ergeben sich dabei (über die bekannte Frequenz-Wellenlänge-Lichtgeschwindigkeitsbeziehung) aus in dem durch die Antenne SA abzudeckenden Frequenzbereich enthaltenen Frequenzen.The permissible for the radio transceiver Wavelengths result (via the known frequency-wavelength-speed of light relationship) out in the by frequencies contained in the antenna range to be covered.

Alternativ kann der dielektrische Körper DK eine beliebige andere geometrische Form aufweisen. Wesentlich ist nur, daß sich der dielektrische Körper DK im Nahfeld der Antenne befindet, wobei die Antenne dadurch verstimmt wird, daß die Dielektrizitätszahl des dielektrischen Körpers DK variiert wird, so daß sie auf die aktuelle Frequenz abgestimmt ist. Alternatively, the dielectric body DK can be any one have a different geometric shape. It is only essential that the dielectric body DK is in the near field of the antenna, the antenna is detuned by the fact that the Dielectric constant of the dielectric body DK varies is so that it is tuned to the current frequency.

Wie die geometrische Form zu wählen ist, hängt insbesondere von der Antenne bzw. deren Form ab und kann beispielsweise durch Simulation oder durch Versuchsaufbauten bestimmt werden.How to choose the geometric shape depends in particular on the antenna or its shape and can for example can be determined by simulation or by experimental setups.

Der abgedeckte Frequenzbereich ist um so größer, je größer das Intervall der einstellbaren Dielektrizität des dielektrischen Körpers DK ist, wobei der dielektrische Körper DK im Ruhezustand - d.h. es liegt kein Gleichspannungsfeld an - eine sehr hohe Dielektrizitätskonstante (vorzugsweise εr ca. 200) aufweisen muß, was insbesondere durch den Einsatz eines dielektrischen Körpers DK mit hoher Dielektrizitätszahl und/oder durch Vergrößerung des Volumens des einzusetzenden dielektrischen Körpers DK gewährleistet werden kann.The frequency range covered is greater, the larger the interval of the adjustable dielectric of the dielectric body DK, the dielectric body DK having to have a very high dielectric constant (preferably ε r approx. 200) in the idle state - i.e. there is no DC field , which can be ensured in particular by using a dielectric body DK with a high dielectric constant and / or by increasing the volume of the dielectric body DK to be used.

Daher ist der dielektrische Körper DK beispielweise aus Keramik zu fertigen, da Keramiken, insbesondere welche mit ferromagnetischen Domänen, mit einer erforderlichen hohen Dielektrizitätszahl von beispielsweise εr ca. 200 hergestellt werden können.Therefore, the dielectric body DK has to be made of ceramic, for example, since ceramics, in particular those with ferromagnetic domains, can be produced with a required high dielectric constant of, for example, ε r approx. 200.

Der dielektrische Stab SB ist aus Keramik gefertigt und weist sog. ferromagnetische Domänen auf, d.h. die Keramik ist derart ausgestaltet, daß sie Bereiche mit atomaren magnetischen Dipolen aufweist, die spontan oder durch äußeren elektrischen Einfluß, überwiegend parallel ausgerichtet sein können, so daß magnetische Domänen entstehen. Da ferromagnetische Domänen für elektrische Einflüsse empfänglich sind, hat ein anliegendes Gleichspannungsfeld einen Einfluß auf die Dielektrizität des dielektrischen Stabes SB. Um den dielektrischen Stab SB mit den ferromagentischen Domänen einem Gleichspannungsfeld aussetzen zu können, ist der dielektrische Stab SB mit einer elektrisch leitenden ersten Schicht S1 überzogen, die jedoch ein elektrisches Wechselfeld, beispielsweise Abstrahlung der Antenne, nicht beeinflußt. Als Material für die erste Schicht S1 wäre daher beispielsweise ein Elektrolyt oder das Material Graphit denkbar. The dielectric rod SB is made of ceramic and has so-called ferromagnetic domains, i.e. the ceramic is like this designed to have areas with atomic magnetic Has dipoles that occur spontaneously or through external electrical Influence, can be predominantly parallel, so that magnetic domains arise. Because ferromagnetic domains are susceptible to electrical influences DC field has an influence on the dielectric of the dielectric rod SB. To the dielectric rod SB with the ferromagnetic domains a DC field to be able to expose is the dielectric rod SB with an electrically conductive first layer S1, which however, an alternating electrical field, for example radiation the antenna, not affected. As material for the first Layer S1 would therefore be, for example, an electrolyte or the material graphite is conceivable.

Das zum Beeinflussen der Dielektrizität notwendige Gleichspannungsfeld wird durch Anlegen einer Gleichspannung UST an die Stabantenne SA derart erzielt, daß die Stabantenne SA ein Pol des elektrischen Gleichspannungsfeldes bildet und die erste Schicht S1 den zweiten Pol - Gegenpol - des elektrischen Gleichspannungsfeldes bildet, wobei die erste Schicht S1 über einen hochohmigen Widerstand R1 - Widerstandswert der sehr viel größer als 50 Ω - mit einem elektrischen Nullpotential - Masse - verbunden ist.The DC voltage field required to influence the dielectric is achieved by applying a DC voltage U ST to the rod antenna SA in such a way that the rod antenna SA forms a pole of the electrical DC voltage field and the first layer S1 forms the second pole - opposite pole - of the electrical DC voltage field, the first Layer S1 via a high-resistance resistor R1 - resistance value that is much greater than 50 Ω - with an electrical zero potential - ground - is connected.

Der hohe erste Widerstand gewährleistet, daß Sende-/Empfangssignale über die Stabantenne SA, trotz des mit einem leitfähigen Material umhüllten dielektrischen Körpers, der sich im Nahfeld der Stabantennne SA befindet, ungehindert gesendet bzw. empfangen werden können.The high first resistance ensures that transmit / receive signals via the rod antenna SA, despite that with a conductive Material encased dielectric body, which is in the Near field of the rod antenna SA is located, transmitted unhindered or can be received.

Das Anlegen der Spannung UST kann beispielsweise gemeinsam über einen HF-Anschluß, der für das Weiterleiten eines HF-Signals notwendig ist, erfolgen, wobei zur Entkopplung zwischen HF-Anschluß und einem Anschluß für die Gleichspannung UST eine Schaltung EN, beispielsweise eine Reihenschaltung aus einem zweiten Widerstand R2 und einer ersten Spule SP1 vorgesehen ist.The voltage U ST can be applied, for example, together via an RF connection, which is necessary for the transmission of an RF signal, a circuit EN, for example a series connection, for decoupling between the RF connection and a connection for the DC voltage U ST a second resistor R2 and a first coil SP1 is provided.

Eine zweite Schicht S2 schützt die erste Schicht S1, insbesondere vor äußeren Einflüssen, ist aber, vor allem wenn das Material der ersten Schicht ein Elektrolyt ist, auch eine Vorrichtung, die das Dringen dieses Materials nach Außen verhindert.A second layer S2 protects the first layer S1, in particular from external influences, but is, especially if that Material of the first layer is an electrolyte, also one Device that prevents this material from escaping to the outside.

Die zweite Schicht S2 sollte eine sehr kleine Dielektrizitätskonstante aufweisen, der ein dielektrisch zumindest nahezu neutrales Verhalten aufweist.The second layer S2 should have a very low dielectric constant have a dielectric at least almost exhibits neutral behavior.

Die Gleichspannung UST ist ein am Ausgang einer Regeleinheit (Mikroprozessor) µP anliegendes Signal (Steuersignal), deren Betrag, Vorzeichen und/oder Signaldauer von an der Regeleinheit µP anliegenden Eingangsgröße EQ abhängig ist.The DC voltage U ST is a signal (control signal) present at the output of a control unit (microprocessor) μP, the amount, sign and / or signal duration of which depends on the input variable EQ present on the control unit μP.

Die Regeleinheit µP steuert bzw. variiert die Dielektrizität durch die Gleichspannung UST solange, bis eine physikalische die Empfangsqualität der Funk-Sende-/Funk-Empfangseinrichtung SE darstellende Eingangsgröße EQ einen Idealwert (Optimum) erreicht hat.The control unit μP controls or varies the dielectric through the direct voltage U ST until a physical input variable EQ representing the reception quality of the radio transceiver SE has reached an ideal value (optimum).

Dazu wird die Gleichspannung UST über Mittel zum Entkoppeln EN an die Stabantenne herangeführt, so daß eine elektrische Ladung auf der Oberfläche der Stabantenne gespeichert wird und mit der mit dem Nullpotential verbundenen ersten Schicht, als Gegenpol, ein Gleichspannungsfeld erzeugt, daß die Dielektrizität des dielektrischen Körpers verändert.For this purpose, the DC voltage U ST is brought to the rod antenna via means for decoupling EN, so that an electrical charge is stored on the surface of the rod antenna and, with the first layer connected to the zero potential, as a counter pole, generates a DC voltage field that the dielectric of the dielectric Body changes.

Die Oberfläche der Stabantenne SA muß daher auch so dimensioniert sein, daß eine für die Erzeugung des Gleichspannungsfeldes notwendige elektrische Ladung gespeichert werden kann. Die Dimensionierung der einzelnen physikalischen Größen (Dilektrizität im Ruhezustand, Oberfläche der Antenne etc.) der Schaltung kann beispielsweise mittels Schaltungsimulation ermittelt und nach Einsatz eines Prototyps optimiert werden.The surface of the rod antenna SA must therefore also be dimensioned in this way be that one for the generation of the DC voltage field necessary electrical charge can be stored. The dimensioning of the individual physical quantities (dielectric at rest, surface of the antenna etc.) the Circuit can be determined, for example, by means of circuit simulation and optimized after using a prototype.

Dabei wird zunächst eine Gleichspannung UST erzeugt, die einen vorbestimmten Wert der einzustellenden Dielektrizität (Defaultwert) erzeugtund dieser Wert stetig erhöht, so daß sich die Dielektrizität ebenfalls stetig ändert. Ergibt die Auswertung, daß sich die Eingangsgröße EQ vom Idealwert entfernt, wird der Gleichspannungswert UST, bis die Eingangsgröße EQ den Idealwert erreicht hat.A DC voltage U ST is first generated, which generates a predetermined value of the dielectric to be set (default value) and increases this value continuously, so that the dielectric also changes continuously. If the evaluation shows that the input variable EQ deviates from the ideal value, the DC voltage value U ST is reached until the input variable EQ has reached the ideal value.

Alternativ ist es möglich die Regelung zusätzlich von einem Definierten Startwert der Gelichspannung , beispielsweise Null Volt, beginnen zu lassen. Alternatively, it is also possible to control one Defined starting value of the voltage, for example Zero volts, let's start.

Die ggf. aufbereitete Eingangsgröße EQ erhält die Regeleinheit µP von Mitteln EFM zur Erfassung von physikalischen vom Überlappungsmaß M abhängigen Eingangsgrößen EQ, die von diesen Mitteln ggf. in eine für die Regeleinheit µP notwendige Form transformiert werden.The control unit receives the possibly processed input variable EQ µP of funds EFM for the acquisition of physical from Overlap measure M dependent input quantities EQ, by these Means, if necessary, in a necessary for the control unit µP Shape to be transformed.

Alternativ erfassen die Mittel EFM auch mehrere physikalische Eingangsgrößen EQ und bereiten diese ggf. auf, bevor sie an die Regeleinheit µP weitergeleitet werden, wobei die Regeleinheit µP entsprechend mehrere Eingangsgrößen auf das Erreichen eines Idealwertes überprüfen.Alternatively, the EFM means also cover several physical ones Input variables EQ and, if necessary, prepare them before they start the control unit µP are forwarded, the control unit µP corresponding to several input variables upon reaching check an ideal value.

In FIGUR 2 ist eine mobile Funk-Sende-/Funk-Empfangseinrichtung SE mit einer als Stabantenne SA ausgebildete Sende/Empfangsantenne, wobei eine maximale funktechnisch wirksame Antennenlänge lmax durch die Länge Stabantenne SA bestimmt ist.FIG. 2 shows a mobile radio transceiver SE with a transmission / reception antenna designed as a rod antenna SA, with a maximum radio-effective antenna length l max being determined by the length of the rod antenna SA.

Symmetrisch zur Längsachse der Stabantenne SA ist ein als Hohlkörper ausgestalteter dielektrischer Körper HK derart angeordnet, daß sich die Längsachse der Stabantenne SA mit der Längsachse des dielektrischen Hohlkörpers HK deckt. Der Durchmesser des Hohlkörpers HK sollte so gewählt sein, daß die Seitenwände des Hohlkörpers im Bezug auf die Wellenlänge keinen zu großen Abstand haben, da durch die sonst auftretenden unterschiedlichen Phasenlaufzeiten sich eine andere Abstrahlcharakteristik gegenüber der für Stabantennen (Monopolantennen) üblichen Abstrahlcharakteristik ergibt.An as is symmetrical to the longitudinal axis of the rod antenna SA Dielectric body HK designed hollow body arranged such that the longitudinal axis of the rod antenna SA with the Longitudinal axis of the dielectric hollow body HK covers. The Diameter of the hollow body HK should be chosen so that the side walls of the hollow body in relation to the wavelength do not have too large a distance, because of the otherwise occurring different phase delays a different radiation pattern compared to that for rod antennas (monopole antennas) usual radiation pattern results.

Der Hohlkörper weist wie das in dem in Figur 1 beschriebene Ausführungsbeispiel ferromagnetische Domänen auf und ist ebenfalls mit einer ersten Schicht S1 und einer zweiten Schicht S2 überzogen.The hollow body faces like that described in FIG. 1 Embodiment ferromagnetic domains on and is also with a first layer S1 and a second Layer S2 coated.

Für den Hohlkörper HK gelten daher die gleichen zum dielektrischen Körper aus Figur 1 gemachten Ausführungen, wobei dies auch für die Anschlüsse HF und Einrichtung zum Entkoppeln EN gilt.The same applies to the dielectric for the hollow body HK Body made from Figure 1, wherein this also applies to the HF connections and decoupling device EN applies.

Lediglich die Regelung die zur Änderung der Dielektriziät des Hohlkörpers HK aufgrund einer Gleichspannung UST führt unterscheidet sich von der in Figur 1 beschriebenen und wird ausführlicher diskutiert.Only the control which leads to a change in the dielectric of the hollow body HK on the basis of a direct voltage U ST differs from that described in FIG. 1 and is discussed in more detail.

Diese Spannung UST ist ein am Ausgang einer Regeleinheit (Mikroprozessor) µP anliegendes Signal (Steuersignal), deren Betrag, Vorzeichen und/oder Signaldauer von an der Regeleinheit µP anliegenden Eingangsgröße EQ abhängig ist.This voltage U ST is a signal (control signal) present at the output of a control unit (microprocessor) μP, the magnitude, sign and / or signal duration of which is dependent on the input variable EQ present at the control unit μP.

Die Eingangsgröße EQ wird von vorgesehenen Erfassungsmitteln ermittelt.The input variable EQ is provided by the means of registration provided determined.

Diese Erfassungsmittel EFM können derart ausgestaltet sein, daß sie einen Richtkoppler RK aufweisen, der aus einem Sendesignal eine vorlaufende Sendeleistung und eine rücklaufende Sendeleistung auskoppelt (diese Ausgestaltung der Erfassungsmittel kann auch bei der in Figur 1 beschriebenen Ausführung der Erfindung vorgenommen werden).These detection means EFM can be designed in such a way that they have a directional coupler RK, which consists of a transmission signal a leading transmission power and a returning Decouples transmission power (this configuration of the detection means can also in the embodiment described in Figure 1 of the invention).

Die vorlaufende Sendeleistung wird dann zunächst von einem ersten Gleichrichter gleichgerichtet und die gleichgerichtete vorlaufende Sendeleistung wird anschließend von einem ersten Analog/Digitalwandler in ein erstes digitales Signal gewandelt. Die rücklaufende Sendeleistung wird von einem zweiten Gleichrichter gleichgerichtet und die gleichgerichtete rücklaufende Sendeleistung anschließend von einem zweiten Analog/Digitalwandler in ein zweites digitales Signal gewandelt.The leading transmission power is then first of all first rectifier rectified and the rectified leading transmission power is then from a first Analog / digital converter converted into a first digital signal. The returning transmission power is from a second Rectifiers rectified and the rectified returning Then transmit power from a second analog / digital converter converted into a second digital signal.

Die digitalen Signale liegen als Eingangssignal an der Regeleinheit µP an, wobei die Regeleinheit µP beispielsweise als (Mikro-)Prozessor mit zugehöriger Software ausgebildet ist. Der Prozessor µP überprüft bei den anliegenden digitalen Signalen, ob die Signale jeweils einen Idealwert - keine rücklaufende Sendeleistung bzw. minimale rücklaufende Sendeleistung und maximale vorlaufende Sendeleistung - erreicht haben.The digital signals are input to the control unit µP on, the control unit µP for example as (Micro) processor is designed with associated software. The processor µP checks the incoming digital signals, whether the signals each have an ideal value - no retrograde Transmission power or minimum returning transmission power and maximum forward transmission power - have reached.

Trifft dies zu, wird das aktuelle Steuersignal UST bzw. das Gleichspannungsfeldkonstant gehalten.If this is the case, the current control signal U ST or the DC voltage field is kept constant.

Trifft dies nicht zu, wird vom Prozessor µP zunächst der Wert der aktuellen Gleichspannung UST beispielsweise stetig erhöht, so daß sich die Dielektrizität desden Hohlkörpers, insbesondere ausgehend von dem Defaultwert, verändert werden. Die durch diesen Vorgang geänderten Eingangsignale - vor- und rücklaufende Sendeleistung - , die am Prozessor anliegen, überprüft der Prozessor im Hinblick auf die zu erreichenden Idealwerte. Haben sich die Werte der Signale - vor- und rücklaufende Sendeleistung - im Hinblick auf Erreichen der Idealwerte verschlechtert, so wird der Wert der Gleichspannung UST, beispielsweise stetig reduziert,. Dies kann sogar bis zur Umkehrung des Vorzeichens des Signals UST führen.If this is not the case, the processor µP first increases the value of the current DC voltage U ST, for example, so that the dielectric of the hollow body changes, in particular based on the default value. The processor checks the input signals changed by this process - forward and returning transmission power - which are applied to the processor with regard to the ideal values to be achieved. If the values of the signals - forward and returning transmission power - have deteriorated with a view to reaching the ideal values, the value of the DC voltage U ST is continuously reduced, for example. This can even lead to the reversal of the sign of the signal U ST .

Die Gleichspannung UST wird im Anschluß an die Ermittlung der korrekten Richtung solange erzeugt, bis die durch das aus der Gleichspannung UST resultierende Gleichspannungsfeld veränderte Dielektrizität gewährleistet, daß vor- und rücklaufende Sendeleistung ihre Idealwerte erreicht haben.The DC voltage U ST is generated as long as, following the determination of the correct direction until the modified by the product resulting from the direct voltage U ST DC field dielectric ensures that forward and reverse transmission power have reached their ideal values.

Alternativ kann für diesen Regelkreis auch nur eine der beiden Größen - vorlaufende Sendeleistung oder rücklaufende Sendeleistung PR - als Regelgröße verwendet werden, d.h. von den Mitteln EFM erfaßt und vom Prozessor µP auf Erreichen der Idealwerte - minimale bzw. keine rücklaufende Sendeleistung oder maximal vorlaufende Sendeleistung - überprüft werden.Alternatively, only one of the two variables - forward transmission power or returning transmission power P R - can be used as a control variable for this control loop, i.e. detected by the EFM means and by the processor µP when the ideal values are reached - minimum or no returning transmission power or maximum forwarding transmission power - be checked.

Als Alternative zum Einsatz eines zusätzlichen Prozessors µP wäre es denkbar, daß bereits vorhandene Prozessoren durch eine geeignete Steuersoftware aufgerüstet werden, um diese Regelung durchführen zu können. As an alternative to using an additional processor µP it would be conceivable that existing processors by a appropriate control software to be upgraded to this scheme to be able to perform.

Bei Einsatz eines zusätzlichen Prozessors µP wäre auch eine Integration der Mittel EFM in den Prozessor µP denkbar.If an additional processor µP were used, one would also be Integration of the EFM means in the processor µP conceivable.

Vorstehend sind mobile Funk-Sende-/Funk-Empfangseinrichtungen beschrieben worden, insbesondere weil bei mobilen Funk-Sende/Funk-Empfangseinrichtungen die Erfindung, insbesondere durch Gewichtsreduzierung, Raumeinsparung etc. besonders vorteilhaft eingesetzt ist, jedoch ist die Erfindung nicht allein bei mobilen Funk-Sende-/Funk-Empfangseinrichtungen von Vorteil sondern auch bei Funk-Sende-/Funk-Empfangseinrichtungen.Above are mobile radio transceivers have been described, in particular because in the case of mobile radio transmitting / receiving devices the invention, in particular by Weight reduction, space saving etc. particularly advantageous is used, but the invention is not alone This is an advantage for mobile radio transceivers but also with radio transmitters / radio receivers.

Claims (10)

  1. Radio transmitting/radio receiving device (SE) having
    a) an electrically acting antenna body (SA) in whose near field a dielectric body (DK) is arranged, with the dielectric body being designed such that the dielectric constant of the dielectric body can be varied by means of at least one control signal (UST), and having
    b) Means (EFM) for detecting at least one physical variable (EQ), which presents a function of the transmission/reception quality of the radio transmitting/radio receiving device (SE), with the detection means (EFM) being connected to a control device (µP) such that the physical variable (EQ) which represents a function of the transmission/reception quality of the radio transmitting/radio receiving device (SE) is supplied as an input variable (EQ') to the control device (µP), and with the control device (µP) which is connected to the detection means (EFM) controlling the dielectric constant by means of control signal (UST) as a function of the input variable (EQ') or of the input variables (EQ') until an optimum value is ensured for physical variable (EQ) which represents a function of the transmission/reception quality of the radio transmitting/radio receiving device (SE),
    characterized in that
    c) the dielectric body (DK) has ferromagnetic domains, and
    d) the dielectric body (DK) is at least partially coated with a first layer (S1), such that the dielectric constant of the dielectric body is resistant to electrical alternating fields and can be influenced by electrical DC voltage fields, with the dielectric body being formed from ceramic.
  2. Radio transmitting/radio receiving device (SE) according to Claim 1, characterized in that
    the dielectric body is coated with a second layer (S2) such that the second layer (S2) protects the first layer (S1) against external mechanical influences, and/or fixes the first layer (S1).
  3. Radio transmitting/radio receiving device (SE) according to one of the preceding claims, characterized in that
    a) the electrically acting antenna body (SA) is in the form of a rod antenna (SA),
    b) the dielectric body is in the form of a hollow body (HK), and
    c) the dielectric body at least partially sheaths the rod antenna (SA) along the longitudinal axis of the rod antenna (SA).
  4. Radio transmitting/radio receiving device (SE) according to one of Claims 1 to 3,
    characterized in that
    a) the electrically acting antenna body (SA) is in the form of a rod antenna (SA),
    b) the dielectric body is in the form of a rod (SB), and
    c) the rod (SB) is arranged parallel to the rod antenna (SA) on one longitudinal side of the rod antenna (SA).
  5. Radio transmitting/radio receiving device (SE) according to one of the preceding claims,
    characterized in that
    the control device (µP) is a processor having software which is designed for producing the control signal (UST) or the control signals (UST).
  6. Radio transmitting/radio receiving device (SE) according to one of Claims 1 to 5,
    characterized in that
    the control device (µP) is in the form of a switching mechanism.
  7. Radio transmitting/radio receiving device (SE) according to one of the preceding claims,
    characterized in that
    a) decoupling means (EN) are arranged between a connection for the control signal (UST) and the electrically acting antenna body (SA), and
    b) the decoupling means (EN) are designed such that a radio-frequency signal which is received or transmitted by the first electrically acting antenna body (SA) is decoupled from the control signal (UST).
  8. Radio transmitting/radio receiving device (SE) according to one of the preceding claims,
    characterized in that
    the control device (µP) is designed such that it always sets a fixed value for the dielectric constant of the dielectric body as an initial value at the start of the adjustment process.
  9. Radio transmitting/radio receiving device (SE) according to one of the preceding claims,
    characterized in that
    the detection means (EFM) are designed such that they detect a leading transmission path and/or a trailing transmission path of a transmission signal.
  10. Radio transmitting/radio receiving device (SE) according to one of the preceding claims,
    characterized in that
    a) a further electrically acting antenna body is arranged in the near field of the electrically acting antenna body (SA),
    b) the dielectric body is arranged in the near field of the electrically acting antenna body (SA) and in the near field of the further electrically acting antenna body,
    c) the control device (µP), the detection means (EFQ) and the decoupling means (EN) are designed such that the electrically acting antenna body, the further electrically acting antenna body and the dielectric body provide a tuneable filter.
EP00989808A 1999-12-13 2000-11-28 Radio transmitter/radio receiver unit comprising a tuneable antenna Expired - Lifetime EP1247310B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19959983 1999-12-13
DE19959983A DE19959983C2 (en) 1999-12-13 1999-12-13 Radio transmitter / radio receiver with tunable antenna
PCT/DE2000/004225 WO2001045203A1 (en) 1999-12-13 2000-11-28 Radio transmitter/radio receiver unit comprising a tuneable antenna

Publications (2)

Publication Number Publication Date
EP1247310A1 EP1247310A1 (en) 2002-10-09
EP1247310B1 true EP1247310B1 (en) 2003-06-18

Family

ID=7932425

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00989808A Expired - Lifetime EP1247310B1 (en) 1999-12-13 2000-11-28 Radio transmitter/radio receiver unit comprising a tuneable antenna

Country Status (6)

Country Link
US (1) US6781562B1 (en)
EP (1) EP1247310B1 (en)
CN (1) CN1210840C (en)
AT (1) ATE243371T1 (en)
DE (2) DE19959983C2 (en)
WO (1) WO2001045203A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE517845C2 (en) * 2000-12-05 2002-07-23 Ericsson Telefon Ab L M An antenna arrangement and a communication device comprising such an arrangement
WO2004073108A1 (en) * 2003-02-14 2004-08-26 Kabushiki Kaisha Toshiba Electronic device
US6992628B2 (en) * 2003-08-25 2006-01-31 Harris Corporation Antenna with dynamically variable operating band
US7084828B2 (en) * 2003-08-27 2006-08-01 Harris Corporation Shaped ground plane for dynamically reconfigurable aperture coupled antenna
JP2007293714A (en) * 2006-04-26 2007-11-08 Toshiba Tec Corp Wireless communication apparatus and printing apparatus
US8742991B2 (en) * 2012-04-10 2014-06-03 Htc Corporation Handheld electronic devices and methods involving tunable dielectric materials
US11469502B2 (en) * 2019-06-25 2022-10-11 Viavi Solutions Inc. Ultra-wideband mobile mount antenna apparatus having a capacitive ground structure-based matching structure
DE102019210054A1 (en) * 2019-07-09 2021-01-14 Robert Bosch Gmbh Antenna and method of operating an antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025766A1 (en) * 1989-08-16 1991-02-21 Nissan Motor Electronically controllable vehicle antenna - uses plate separated by dielectric material with permeability controlled by dc voltage
WO2000065685A1 (en) * 1999-04-27 2000-11-02 Siemens Aktiengesellschaft Mobile radio transmitting-receiving device comprising a tunable antenna
WO2001018907A1 (en) * 1999-09-09 2001-03-15 Siemens Aktiengesellschaft Mobile radio transmitting/receiving device comprising a tunable antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE550040A (en) * 1956-04-26
GB1157971A (en) * 1965-08-28 1969-07-09 Telefunken Patent Aerial System for an Earth Satellite
JPS61169003A (en) * 1985-01-21 1986-07-30 Mitsubishi Electric Corp Antenna device
US6067047A (en) * 1997-11-28 2000-05-23 Motorola, Inc. Electrically-controllable back-fed antenna and method for using same
ATE328371T1 (en) * 1998-12-14 2006-06-15 Matsushita Electric Ind Co Ltd ACTIVE PHASE-CONTROLLED GROUP ANTENNA AND UNIT FOR CONTROLLING THE ANTENNA
US6300894B1 (en) * 1999-07-09 2001-10-09 Harris Corporation Antenna having electrically controllable radar cross-section

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4025766A1 (en) * 1989-08-16 1991-02-21 Nissan Motor Electronically controllable vehicle antenna - uses plate separated by dielectric material with permeability controlled by dc voltage
WO2000065685A1 (en) * 1999-04-27 2000-11-02 Siemens Aktiengesellschaft Mobile radio transmitting-receiving device comprising a tunable antenna
WO2001018907A1 (en) * 1999-09-09 2001-03-15 Siemens Aktiengesellschaft Mobile radio transmitting/receiving device comprising a tunable antenna

Also Published As

Publication number Publication date
US6781562B1 (en) 2004-08-24
DE19959983A1 (en) 2001-07-05
WO2001045203A1 (en) 2001-06-21
EP1247310A1 (en) 2002-10-09
DE19959983C2 (en) 2002-05-02
DE50002621D1 (en) 2003-07-24
CN1421058A (en) 2003-05-28
ATE243371T1 (en) 2003-07-15
CN1210840C (en) 2005-07-13

Similar Documents

Publication Publication Date Title
DE60223515T2 (en) ANTENNA DEVICE
EP1012899B1 (en) Device for contactless transmission of electrical signals and/or energy
DE69521935T2 (en) radio antennas
DE69723093T2 (en) RADIO COMMUNICATION DEVICE
DE69818768T2 (en) Multi-band antenna for use in a mobile radio
DE69624300T2 (en) antenna
DE69714132T2 (en) Receiving and / or transmitting device for radio messages with an inductive and capacitive antenna
DE4134397A1 (en) ARRANGEMENT FOR RECEIVING SIGNALS FROM A PASSIVE TRANSPONDER
EP1247310B1 (en) Radio transmitter/radio receiver unit comprising a tuneable antenna
WO1991015878A1 (en) Antenna assembly
WO2009019177A1 (en) Multipart antenna with circular polarization
EP1134840B1 (en) Antenna
EP1218968B1 (en) Mobile radio transmitting/receiving device comprising a tunable antenna
DE1953038B2 (en) Broadband whip antenna
DE69838270T2 (en) Miniature resonant antenna in the form of annular stripline antennas
DE10024721B4 (en) Antenna for circularly polarized waves and wireless device
EP1289061A2 (en) Antenna system
DE102017126112A1 (en) Input and output device between a circuit carrier and a waveguide
DE2754532C2 (en) Signaling device
DE29724042U1 (en) Antenna connector
DE2036809C2 (en) Variable reactance type active receiver aerial - uses two electronic reactance elements kept at equal ambient temp. to facilitate tuning tracking of aerial and oscillator
DE4438136C2 (en) Hybrid and broadband hybrid antenna
DE60101932T2 (en) Remote control system for motor vehicles with an improved receiving antenna
EP1173900A1 (en) Mobile radio transmitting-receiving device comprising a tunable antenna
DE2460227A1 (en) Receiving station for electromagnetic waves - antenna near one or several sources of interference signals e.g. sending antennae

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20020429

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RIN1 Information on inventor provided before grant (corrected)

Inventor name: LUNGWITZ, MATTHIAS

AK Designated contracting states

Designated state(s): AT DE FI FR GB SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50002621

Country of ref document: DE

Date of ref document: 20030724

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20031015

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20030618

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20040319

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20071016

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20080505

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20080430

Year of fee payment: 8

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20081129

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20100812 AND 20100818

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20100826 AND 20100901

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20110407 AND 20110413

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50002621

Country of ref document: DE

Owner name: QUALCOMM INCORPORATED, SAN DIEGO, US

Free format text: FORMER OWNER: PALM, INC. (N.D.GES. D. STAATES DELAWARE), SUNNYVALE, CALIF., US

Effective date: 20110406

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: SAMSON & PARTNER, PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: MAUCHER JENKINS, DE

Effective date: 20140307

Ref country code: DE

Ref legal event code: R081

Ref document number: 50002621

Country of ref document: DE

Owner name: QUALCOMM INCORPORATED, US

Free format text: FORMER OWNER: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, US

Effective date: 20140307

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: SAMSON & PARTNER, PATENTANWAELTE, DE

Effective date: 20140307

Ref country code: DE

Ref legal event code: R081

Ref document number: 50002621

Country of ref document: DE

Owner name: QUALCOMM INCORPORATED, SAN DIEGO, US

Free format text: FORMER OWNER: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., HOUSTON, TEX., US

Effective date: 20140307

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: SAMSON & PARTNER PATENTANWAELTE MBB, DE

Effective date: 20140307

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20140508 AND 20140514

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: MAUCHER JENKINS, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 50002621

Country of ref document: DE

Representative=s name: MAUCHER JENKINS PATENTANWAELTE & RECHTSANWAELT, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 18

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20181015

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20181025

Year of fee payment: 19

Ref country code: FR

Payment date: 20181017

Year of fee payment: 19

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50002621

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20191128

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191128

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200603

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130