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EP1466384B1 - Einrichtung zum empfangen und/oder emittieren elektromagnetischer wellen mit strahlungs-diversity - Google Patents

Einrichtung zum empfangen und/oder emittieren elektromagnetischer wellen mit strahlungs-diversity Download PDF

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Publication number
EP1466384B1
EP1466384B1 EP03718817A EP03718817A EP1466384B1 EP 1466384 B1 EP1466384 B1 EP 1466384B1 EP 03718817 A EP03718817 A EP 03718817A EP 03718817 A EP03718817 A EP 03718817A EP 1466384 B1 EP1466384 B1 EP 1466384B1
Authority
EP
European Patent Office
Prior art keywords
slot
antenna
line
supply line
substrate
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
EP03718817A
Other languages
English (en)
French (fr)
Other versions
EP1466384A1 (de
Inventor
Franck Thudor
Ali Louzir
Philippe Minard
Françoise Le Bolzer
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.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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
Priority claimed from FR0200665A external-priority patent/FR2834836A1/fr
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Publication of EP1466384A1 publication Critical patent/EP1466384A1/de
Application granted granted Critical
Publication of EP1466384B1 publication Critical patent/EP1466384B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems

Definitions

  • the present invention relates to a device for receiving and / or the emission of electromagnetic waves with a radiation diversity usable in the field of wireless transmissions, particularly in the case transmissions in closed or semi-enclosed environments such as networks wireless homes, gymnasiums, television studios, movie theaters show or similar but also in communication systems wireless requiring minimal footprint for the antenna system such as in mobile telephony.
  • the signals transmitted by the transmitter reach the receiver in a plurality distinct paths.
  • the phase differences between different departments that have traveled of different lengths give rise to an interference figure cause fainting or significant deterioration of the signal.
  • the location of fading changes during time, depending on changes in the environment, such as presence of new objects or the passage of people. These fading due to multipaths can lead to degradations important in terms of both the quality of the signal received and the system performance.
  • This technique consists among other things in using a pair of antennas with wide coverage such as two patch-type antennas or "patch" associated with a switch.
  • the two antennas are spaced a length that must be greater than or equal to ⁇ 0 / 2 where ⁇ 0 is the corresponding wavelength at the frequency of operation of the antenna.
  • ⁇ 0 is the corresponding wavelength at the frequency of operation of the antenna.
  • the switch it is possible to select the branch connected to the antenna presenting the highest signal level by examining the signal received through a control circuit.
  • this solution is mainly disadvantage of being relatively large because it requires a minimum spacing between the radiating antennas to ensure sufficient decorrelation of the channel responses seen through each radiating element.
  • THOMSON multimedia Licensing S.A. consist in particular of using several slot-type antennas fed through line-slot transitions and provided with means to obtain a radiation diversity, including diodes for switching on either antenna depending on the level of the received signal.
  • US-A-5,402,136 (GOTO NAOHISA ET AL) published on March 28, 1995 discloses a device for the reception and emission of electromagnetic waves comprising a monopole antenna and several antennas type notch.
  • the present invention therefore aims to propose a new solution for a device for reception and / or emission of waves electromagnetic radiation-rich structures having a structure extremely compact while giving radiation diagrams presenting a very good complementarity. It also allows to obtain a device for the reception and / or emission of electromagnetic waves radiation diversity with a relatively low manufacturing cost low.
  • the present invention relates to a device for the reception and / or emission of electromagnetic waves with a diversity of radiation, comprising on a common substrate, at minus a slot-type antenna constituted by a closed curve, coupled electromagnetically to a first power line and an antenna having a radiation parallel to the substrate such as a monopole, a propeller operating in transverse mode or the like, positioned inside of the slot-type antenna and connected to a second power line, said first and second supply lines being connected by via a switching means to operating means of electromagnetic waves.
  • the device for receiving and / or transmitting waves electromagnetic described above uses the fact that antennas type slot constituted by a closed curve, hereinafter referred to as type antennas slot as well as antennas of the monopole or propeller type operating in transversal mode show almost omni-directional radiation patterns with minima located respectively in the plane of the substrate for the slot-type antenna and along the axis of monopoly or the propeller for the other antenna.
  • switching from one antenna to another allows to modify the response of the channel through the antenna and to benefit thus a gain of diversity.
  • the first power supply line is made using microstrip technology or coplanar technology.
  • the second feed line is made in microstrip technology or a coaxial line.
  • connection is formed at the slot-type antenna between the outer part and the inner part of the slot, this connection being constituted, for example, by a conductive insert having an equal width at about two to three times the width of the line made in microstrip technology, so as not to disturb the operation of the excitatory microstrip line.
  • this connection is made in an electric short-circuit plane for the slot which is therefore the plane of the slot. crossing the excitatory microstrip line of the monopole type antenna or helix and slot type antenna.
  • the antenna type slot is constituted by an annular slot of circular or constituted form by a closed perimeter curve equal to k' ⁇ s where k 'is an integer and ⁇ s la wavelength in the slot at the operating frequency and or by a polygonal slot such as square or rectangular.
  • the device for receiving and / or the emission of electromagnetic waves with a diversity of radiation can have several slot antennas nested within each other to widen the operating band or to allow multiband applications.
  • the device for reception and / or emission of electromagnetic waves is constituted essentially by a slot-type antenna 1 formed of a curve closed, more particularly an annular slot, and by an antenna 2 having a radiation parallel to the plane of the slot, namely a monopoly in the embodiment shown.
  • Monopoly 2 is positioned in the center of the annular slot 1.
  • the device of the present invention comprises a substrate of dielectric material 3 whose upper face has been metallized.
  • the annular slot 1 is made by de metallizing the metal layer 4 according to a diameter circle depending on the length operating waveform of the device, more particularly the perimeter is equal to k' ⁇ s where ⁇ s is the wavelength in the slot at the frequency of functioning and k 'an integer.
  • a circular opening 5 of diameter D is provided in the center of the annular slot.
  • This opening receives in its central part monopoly 2 which also crosses the substrate 3.
  • Under monopoly 2 is provided, on the underside of the substrate 3, a metal annular pellet 5 of fixation.
  • annular slot 1 is excited according to the method described by Knorr, by a microstrip line 6 connected to "port 1".
  • monopoly 2 is excited by a microstrip line 7.
  • the annular slot 1 and the monopole 2 exhibit near-omnidirectional radiation patterns and relatively complementary to the extent that minima m are respectively located in the plane of the substrate (in the occurrence along the axis ox) for the annular slot and along the axis of the monopoly (in this case the oz axis) for the latter.
  • switching from one port to another using a well-known switching device those skilled in the art, such as a switch positioned between the lines 6 and 7 and the signal processing part, driven by a signal control such as signal level, signal-to-noise ratio or similar), allows to modify the response of the channel through the antenna and thus benefit from a diversity gain.
  • the dominant the received signal arrives along the axis ox which would be to receive a signal weak across the access connected to the slot, by switching on the connected access to the monopoly, we are likely to receive a level signal significant given that the ox direction corresponds to a maximum for the monopoly diagram.
  • Symmetrical reasoning can be done in the case where the dominant signal arrives along the axis oz, for example in the case of multi-stage communication.
  • Figure 6 shows the simulation results of the coefficients of reflection at the input of the lines feeding the annular slot (S11) and the monopoly (S22) and the coupling coefficient (S21) between the two ports 1 and 2. It can be seen a good adaptation of the 2 antennas as well as insulation between the two access better than 19dB despite the extreme proximity of the two radiating elements, namely the slot 1 and the monopole 2.
  • the radiation patterns obtained at the access respectively monopoly and annular slot are those represented on the Figures 4 and 5.
  • the antenna system operates as desired, either so with quasi-omni-directional diagrams, complementary with minima along the oz axis for the monopole and the ox axis for the slot annular.
  • monopoly or propeller may be replaced by antennas of the same type which may be placed at the slot of the slot antenna and having a parallel radiation to the substrate.
  • the power line of the slot type antenna can be made by a line in microstrip technology or in technology coplanar.
  • the slot-type antenna can be provided with means allowing it to work in cross-polarizations, such as notches in the case of an annular slot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Claims (11)

  1. Vorrichtung zum Empfangen und/oder zum Senden von elektromagnetischen Wellen mit Strahlungsdiversität, welche auf einem gemeinsamen Substrat (3) mindestens eine erste Schlitzantenne (1) aufweist, wobei die erste Antenne elektromagnetisch mit einer ersten Versorgungsleitung (6) gekoppelt ist, sowie eine zweite Antenne (2), aufweist die eine parallel zum Substrat (2) verlaufende Strahlung abgibt, wobei die zweite Antenne im Inneren der die erste Antenne bildenden Krümmung angeordnet ist und mit einer zweiten Versorgungsleitung (7) verbunden ist, wobei die erste und die zweite Versorgungsleitung über ein Schaltmittel mit Mitteln zur Nutzung der elektromagnetischen Wellen verbunden sind, dadurch gekennzeichnet, dass der Schlitz die Form einer geschlossenen Krümmung aufweist, deren Umfang k'λs gleich ist, wobei λs die Wellenlänge in dem Schlitz bei der Betriebsfrequenz und k' eine ganze Zahl ist.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die erste Versorgungsleitung (6) in Mikrostreifentechnologie oder in Koplanartechnologie realisiert ist.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die erste Versorgungsleitung (6) eine Länge zwischen ihrem Ende und dem Punkt der elektromagnetischen Kopplung aufweist, welche gleich Kλm/4 ist, wobei k eine ungerade ganze Zahl ist und λm die Länge der unter der Versorgungsleitung bei der zentralen Betriebsfrequenz geleiteten Welle ist, wobei λm = λ0/√εreff, wobei λ0 die Wellenlänge im Vakuum und εreff die effektive Permittivität der Leitung ist.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Versorgungsleitung (7) in Mikrostreifentechnologie oder durch eine Koaxialleitung realisiert ist.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass, wenn die Leitung in Mikrostreifentechnologie realisiert ist, an der Schlitzantenne eine Verbindung zwischen dem Außenteil und dem Innenteil des Schlitzes hergestellt wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Verbindung durch eine leitende Einlage (8) gebildet ist, welche eine Breite aufweist, welche zwei- bis dreimal der Breite der in Mikrostreifentechnologie realisierten Leitung entspricht.
  7. Vorrichtung nach einem der Ansprüche 5 oder 6, dadurch gekennzeichnet, dass die Verbindung in einer Ebene eines elektrischen Kurzschlusses für den Schlitz angeordnet ist.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass Schlitzantenne durch einen Ringschlitz oder einen mehreckigen, beispielsweise quadratischen oder rechteckigen Schlitz gebildet ist.
  9. Vorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die eine parallel zum Substrat verlaufende Strahlung aufweisende Antenne (2) durch einen Monopol oder eine im Transversalmodus funktionierende Wendel gebildet ist.
  10. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass sie mehrere ineinander geschachtelte Schlitzantenne aufweist, welche sind.
  11. Vorrichtung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die eine parallel zum Substrat verlaufende Strahlung aufweisende Antenne (2) im Zentrum der Schlitzantennen angeordnet ist.
EP03718817A 2002-01-14 2003-01-10 Einrichtung zum empfangen und/oder emittieren elektromagnetischer wellen mit strahlungs-diversity Expired - Lifetime EP1466384B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
FR0200665 2002-01-14
FR0200665A FR2834836A1 (fr) 2002-01-14 2002-01-14 Dispositif pour la reception et/ou l'emission d'ondes electromagnetiques a diversite de rayonnement
FR0201562A FR2834837A1 (fr) 2002-01-14 2002-02-08 Dispositif pour la reception et/ou l'emission d'ondes electromagnetiques a diversite de rayonnement
FR0201562 2002-02-08
PCT/FR2003/000065 WO2003061062A1 (fr) 2002-01-14 2003-01-10 Dispositif pour la reception et/ou l'emission d'ondes electromagnetiques a diversite de rayonnement

Publications (2)

Publication Number Publication Date
EP1466384A1 EP1466384A1 (de) 2004-10-13
EP1466384B1 true EP1466384B1 (de) 2005-11-16

Family

ID=26213327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03718817A Expired - Lifetime EP1466384B1 (de) 2002-01-14 2003-01-10 Einrichtung zum empfangen und/oder emittieren elektromagnetischer wellen mit strahlungs-diversity

Country Status (9)

Country Link
US (1) US7088302B2 (de)
EP (1) EP1466384B1 (de)
JP (1) JP4118813B2 (de)
KR (1) KR100982180B1 (de)
CN (1) CN100362694C (de)
AU (1) AU2003222863A1 (de)
DE (1) DE60302331T2 (de)
FR (1) FR2834837A1 (de)
WO (1) WO2003061062A1 (de)

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FR2858468A1 (fr) * 2003-07-30 2005-02-04 Thomson Licensing Sa Antenne planaire a diversite de rayonnement
JP4332494B2 (ja) * 2004-12-22 2009-09-16 アルプス電気株式会社 アンテナ装置
US8723746B1 (en) * 2009-10-01 2014-05-13 Rockwell Collins, Inc. Slotted ground plane antenna
US8749439B2 (en) * 2012-03-19 2014-06-10 The Mitre Corporation Ultra-high frequency (UHF)-global positioning system (GPS) integrated antenna system for a handset
US9570799B2 (en) 2012-09-07 2017-02-14 Ruckus Wireless, Inc. Multiband monopole antenna apparatus with ground plane aperture
WO2014146038A1 (en) 2013-03-15 2014-09-18 Ruckus Wireless, Inc. Low-band reflector for dual band directional antenna
US9431712B2 (en) * 2013-05-22 2016-08-30 Wisconsin Alumni Research Foundation Electrically-small, low-profile, ultra-wideband antenna
KR102280037B1 (ko) 2015-07-29 2021-07-21 삼성전자주식회사 디스플레이에 구비된 내장 안테나용 급전장치
USD780128S1 (en) * 2015-09-04 2017-02-28 Lutron Electronics Co., Inc. Wireless control device
USD780129S1 (en) * 2015-09-04 2017-02-28 Lutron Electronics Co., Inc. Wireless control device
EP3369136B1 (de) * 2015-10-30 2021-06-23 Lutron Technology Company LLC Drahtloskommunikationsvorrichtung mit doppelantenne in einem laststeuerungssystem
CN110323558B (zh) * 2018-03-30 2023-08-18 普罗斯通信技术（苏州）有限公司 一种宽带偶极子
CN110504526B (zh) * 2018-05-18 2022-03-04 华为技术有限公司 天线装置和终端
USD906373S1 (en) * 2018-06-28 2020-12-29 Robot Corporation Robotic lawnmower having antenna thereon
CN110212291B (zh) * 2019-07-17 2023-07-28 福州大学 一种应用于卫星导航终端的方形六臂缝隙螺旋天线
US11764487B2 (en) * 2021-03-30 2023-09-19 Rf Venue, Inc. Diversity antenna with a uniform omnidirectional radiation pattern

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Also Published As

Publication number Publication date
EP1466384A1 (de) 2004-10-13
DE60302331T2 (de) 2006-07-27
US7088302B2 (en) 2006-08-08
JP2005537693A (ja) 2005-12-08
JP4118813B2 (ja) 2008-07-16
CN100362694C (zh) 2008-01-16
KR20040071300A (ko) 2004-08-11
US20050083236A1 (en) 2005-04-21
KR100982180B1 (ko) 2010-09-14
CN1615561A (zh) 2005-05-11
DE60302331D1 (de) 2005-12-22
WO2003061062A1 (fr) 2003-07-24
FR2834837A1 (fr) 2003-07-18
AU2003222863A1 (en) 2003-07-30

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