EP1090437B1 - Antenne, verwendung einer derartigen antenne und verfahren zur herstellung einer derartigen antenne - Google Patents
Antenne, verwendung einer derartigen antenne und verfahren zur herstellung einer derartigen antenne Download PDFInfo
- Publication number
- EP1090437B1 EP1090437B1 EP00934860A EP00934860A EP1090437B1 EP 1090437 B1 EP1090437 B1 EP 1090437B1 EP 00934860 A EP00934860 A EP 00934860A EP 00934860 A EP00934860 A EP 00934860A EP 1090437 B1 EP1090437 B1 EP 1090437B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- curved
- convex
- antenna elements
- elements
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000002184 metal Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 5
- 230000003071 parasitic effect Effects 0.000 description 5
- 238000004080 punching Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Classifications
-
- 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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
Definitions
- the present invention relates to an antenna, in particular a helical antenna, use of such an antenna and a method of manufacturing such an antenna according to the preamble of claims 1, 15 and 16.
- the design plays, i.e. the outer Appearance, when designing antennas a big one Role.
- modern mobile devices increasingly not only in a cellular network, i.e. in one Frequency range, but in several frequency ranges be usable.
- Multiband antenna systems are currently used, which consist of several individual antennas, for example of cylindrical symmetrical helical wire structures or planar antennas (eg so-called PCB boards).
- a dual-band antenna which consists of a helix antenna and a parasitic element which is arranged next to the helix antenna but is not connected to it.
- EP 0 893 841 A1 furthermore discloses an inexpensive manufacture of a helix antenna by punching out a thin sheet.
- this helix antenna which can be operated in only one frequency band, is not mechanically sufficiently stable, so that in a further working step it is reinforced with non-conductive materials which have been applied using injection molding technology.
- the present invention is therefore based on the object propose an antenna, which on the one hand is as possible easy and inexpensive to manufacture and on the other hand much leeway in the design of the exterior design Antenna enables.
- the antenna should enable easy expansion to a multiband antenna.
- the antenna according to the invention describes a helical one Basic structure, which is particularly cost-effective easy punching and bending of a metal or sheet metal part can be made.
- the antenna is convex curved and strip-shaped antenna elements that such in series over webs running in the longitudinal direction of the antenna switched and arranged so that they are in the form of a helix replicate.
- the basic structure of a helix modified so that the antenna only elements has, which - in the longitudinal plane of the antenna considered - do not overlap, so that the helix structure through a simple stamping process can be made.
- the structure of the antenna according to the invention is not mandatory cylindrical symmetry and does not necessarily have to be planar Instructions included.
- the curved stripe-shaped Rather, antenna elements can be used within wide limits be shaped so that when designing the outer design there is a lot of design freedom and a design-compliant one Structure, for example a non-cylindrical symmetry Cross section, can be formed much easier.
- the helical basic structure of the antenna according to the invention simply becomes a dual-band, Triple band or general multiband antenna extended:
- the helical basic series connection of the convex curved antenna elements only by another parasitic antenna element in the form of an elongated web which runs parallel to the helix and is also arranged in such a way that the individual elements of the antenna, viewed in the longitudinal plane of the antenna do not overlap, so that this is also parasitic Antenna element together with the helical basic structure can be made from the same stamped and bent part.
- the Parasitic and web-like antenna element is not just too connected in parallel to the helical base structure, i.e. at the lower antenna end connected to this, but especially so close to this helical Basic structure arranged that a clear electromagnetic coupling between the individual Antenna elements is given and on the other hand the construction volume the antenna becomes minimal.
- the distributed Partial inductances and capacities of the individual Antenna elements are used in such a way that the thus a parallel connection and a series connection of preferably elliptically curved half rings and straight Are existing antennas in several frequency bands can be operated.
- Antenna contact spring which is the electrical contact between the antenna and the electronics of it too produces operating device, in one piece from a single Stamped and bent part are manufactured, which is special is inexpensive because the antenna contact spring with the Basic antenna structure during the same production step can be manufactured.
- Fig. 1 shows a perspective view of a punchable Triple band antenna according to a preferred one Embodiment of the present invention
- FIG. 2 shows the course of the reflection factor in FIG. 1 shown antenna depending on the operating frequency.
- the antenna shown in Fig. 1 has a helical shape Basic structure.
- This is the basic helical structure realized that convex curved antenna elements 2, 3 with opposite bends or curvatures are arranged alternately so that a down curved antenna element 3 on an upward curved Antenna element follows and vice versa.
- the neighboring arranged ends of two adjacent antenna elements 2, 3 are preferably straight and in the longitudinal direction of the Bridges 4, 5 extending antenna or helix with one another in this way connected that there is a series connection of the individual Antenna elements 2, 3 results and that shown in Fig. 1 Helix structure is formed.
- the helical antenna shown in Fig. 1 can be easily by a Stamping and bending process can be produced. To do this you need to a metal or sheet metal part only the strip-shaped and preferably parallel to each other Antenna elements 2, 3 and the adjacent ends of the Webs 4, 5 connecting antenna elements are punched and the Alternate antenna elements 2 and 3 bent according to FIG. 1 become. However, the antenna elements 2, 3 can also run at an angle to each other. From Fig. 1 it can be seen that the individual elements of this helical antenna are arranged in this way are that they - viewed in the longitudinal direction of the antenna - Do not overlap at any point, which otherwise the punching process would hinder or even make impossible.
- each convex curved Antenna elements 2 and 3 are preferably identical, so that there is a uniform helical structure. Furthermore, it is recommended that the antenna elements 2 and 3 to bend elliptically.
- the trained as half rings However, antenna elements 2 and 3 can basically be in certain limits can be shaped arbitrarily to a certain To realize design.
- the antenna contact spring 1 can also be easily cut and punched accordingly subsequent bending of the same metal part become.
- the antenna contact spring 1 is simple formed by an elongated section which then bent into a desired shape. Form this section can be chosen as long as the Length of the section does not become too large.
- Fig. 1 can be seen that the above described helical basic structure another, parasitic antenna element 6 is connected in parallel, which is at the lower longitudinal end of the antenna with one end of the in the longitudinal direction of the first antenna element 2 and the Antenna contact spring 1 is connected.
- This further Antenna element 2 runs in particular in the same plane like the connecting webs 4 and 5 parallel to the helical basic structure of the antenna and is also such arranged that there are no overlaps. So can this further antenna element 6 from the same stamped part how the rest of the antenna are made.
- the parallel-connected antenna element 6 is so close to that helical base structure with antenna elements 2, 3 arranged that between these antenna elements 2, 3 and 6th a clear electromagnetic coupling during operation occurs and on the other hand the volume of the antenna can be minimized.
- an antenna element 6 connected in parallel End section 7, which is preferably parallel and laterally to the last convex curved half ring in the longitudinal direction of the antenna the helix structure runs.
- This curved end section 7 can have the same bend as the half-rings bent upwards or have antenna elements 2 and serves to optimized electromagnetic coupling the necessary Conductor strip length with minimum total antenna volume realize.
- the end section 7 completes the construction of the Antenna in the longitudinal direction.
- the distributed partial inductances and capacities of the formed and shown in Fig. 1 antenna structure be exploited that the antenna in several Frequency ranges can be operated.
- the antenna can be optimized close to a first one Resonance frequency for one of their target frequency bands be used and at the same time close to a second Work resonance frequency so broadband that the Use in two other frequency bands is possible.
- measured for the antenna shown in FIG. 1 shown shows the reflection factor
- the reflection factor at a first resonance frequency in the range of the frequency range of the GSM mobile radio standard (Global System For Mobile Communication) and also at a second resonance frequency within the overlapping frequency ranges of the mobile radio standards PCS (Personal Communication Services ) and PCN (Personal Communication Network) takes minimum values, so that the antenna can be operated accordingly in three different frequency bands and according to three different mobile radio standards.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Description
EP 0 893 841 A1 offenbart weiterhin eine kostengünstige Herstellung einer Helix-Antenne durch ein Ausstanzen aus einem dünnen Blech. Diese in nur einem Frequenzband betreibbbare Helix-Antenne ist allerdings mechanisch nicht hinreichend stabil, so dass sie in einem weiteren Arbeitsschritt mit durch in Spritzgusstechnik aufgebrachten, nicht-leitenden Werkstoffen verstärkt wird.
Claims (18)
- Antenne, mit Antennenelementen (3, 4), welche derart angeordnet sind, daß sie die Form einer Helix nachbilden, daß die Antenne erste und zweite konvex gebogene Antennenelemente (2, 3) umfaßt,
daß die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) abwechselnd derart angeordnet sind, daß die Biegung der ersten Antennenelemente (2) entgegengesetzt zu der Biegung der zweiten Antennenelemente (3) ist, und
daß jeweils benachbarte Enden von benachbart angeordneten ersten und zweiten Antennenelementen (2, 3) über einen in Längsrichtung der Antenne verlaufenden Steg (4, 5) derart verbunden sind, daß die ersten und zweiten Antennenelemente (2, 3) in Reihe geschaltet sind und die Form einer Helix nachbilden, ohne einander in Längsrichtung der Antenne zu überlappen
dadurch gekennzeichnet, daß die Antenne ein drittes Antennenelement (6) aufweist, welches in Längsrichtung der Antenne und im wesentlichen parallel zu der helixförmigen Anordnung der ersten und zweiten konvex gebogenen Antennenelemente (2, 3) verläuft, und am dem Einspeisepunkt zugewandten Längsende der Antenne mit dieser verbunden ist. - Antenne nach Anspruch 1,
dadurch gekennzeichnet, daß die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) streifenförmig und zueinander parallel angeordnet sind. - Antenne nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die in Längsrichtung der Antenne verlaufenden Stege (4, 5), welche jeweils die Enden von benachbart angeordneten ersten und zweiten Antennenelementen (2, 3) verbinden, gerade sind. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) einen identischen Biegungsradius aufweisen. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) elliptisch gebogen sind. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
das das obere Längsende (7) des dritten Antennenelements (6) derart konvex gebogen ist, daß es im wesentlichen parallel zu den ersten und zweiten Antennenelementen (2, 3) verläuft. - Antenne nach Anspruch 6,
dadurch gekennzeichnet, daß das konvex gebogene obere Längsende (7) des dritten Antennenelements (6) seitlich von dem in Längsrichtung der Antenne gesehen obersten Antennenelement der helixförmigen Anordnung der ersten und zweiten konvex gebogenen Antennenelemente (2, 3) angeordnet ist und die Länge der Antenne nach oben begrenzt. - Antenne nach Anspruch 6 oder 7,
dadurch gekennzeichnet, daß das konvex gebogene obere Längsende (7) des dritten Antennenelements (6) im wesentlichen denselben Biegungsradius wie die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) besitzt. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß das dritte Antennenelement (6) in derselben Ebene wie die Stege (4, 5) welche jeweils benachbarte erste und zweite Antennenelemente (2, 3) verbinden, angeordnet ist. - Antenne nach Anspruch 9,
dadurch gekennzeichnet, daß die ersten und zweiten konvex gebogenen Antennenelemente (2, 3) symmetrisch zu der gemeinsamen Ebene des dritten Antennenelements (6) und der Stege (4, 5) angeordnet sind. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Antenne an ihrem unteren Längsende einen Antennenkontaktabschnitt (1) zum Anschluß der Antenne an die Elektronik eines mit der Antenne zu betreibenden Geräts aufweist. - Antenne nach Anspruch 11 und Anspruch 9 oder 10,
dadurch gekennzeichnet, daß der Antennenkontaktabschnitt (1) einen mit dem unteren Längsende der Antenne verbundenen und senkrecht aus der gemeinsamen Ebene des dritten Antennenelements (6) und der Stege (4, 5) herausgebogenen ersten Bereich und einen mit dem ersten Bereich verbundenen zweiten Bereich umfaßt, wobei der zweite Bereich gegenüber dem ersten Bereich senkrecht derart gebogen ist, daß der zweite Bereich im wesentlichen parallel zu der gemeinsamen Ebene des dritten Antennenelements (6) und der Stege (4, 5) verläuft. - Antenne nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß die Antenne einteilig ausgestaltet ist. - Antenne nach Anspruch 13,
dadurch gekennzeichnet, daß die Antenne aus einem einzigen Metallteil gefertigt ist. - Verwendung einer Antenne nach einem der vorhergehenden Ansprüche in einem Multiband-Funkgerät.
- Verfahren zur Herstellung einer Antenne, deren Antennenelemente (3, 4) die Form einer Helix nachbilden, und bei der die nebeneinander verlaufenden streifenförmigen Antennenelemente (2, 3) und quer zu den Antennenelementen (2, 3) verlaufenden Stege (4, 5) aus einem Metallteil gestanzt werden, wobei die Stege (4, 5) jeweils benachbart angeordnete Antennenelemente (2, 3) an einem Ende derart verbinden, daß die Antennenelemente (2, 3) in Reihe geschaltet werden und die Antennenelemente (2, 3) abwechselnd nach oben und unten konvex gebogen werden,
dadurch gekennzeichnet, daß aus demselben Metallteil ein weiteres streifenförmiges Antennenelement (6) derart gestanzt wird, daß ein erster Abschnitt davon im wesentlichen parallel zu der helixförmigen Anordnung der konvex gebogenen Antennenelemente (2, 3) und ein zweiter Abschnitt an dem dem Einspeisepunkt der Antenne gegenüberliegendem freien Ende parallel zu den konvex gebogenen Antennenelementen (2, 3) verläuft und das dem Einspeisepunkt zugewandte Längsende des ersten Abschnitts des weiteren Antennenelements (6) mit dem dem Einspeisepunkt zugewandten Ende der helixförmigen Anordnung verbunden ist. - Verfahren nach Anspruch 16,
dadurch gekennzeichnet, daß der zweite Abschnitt des weiteren Antennenelements (6) konvex gebogen wird. - Verfahren nach einem der Ansprüche 16 oder 17,
dadurch gekennzeichnet, daß aus demselben Metallteil ein Antennenkontaktabschnitt (1) gestanzt wird, der mit dem unteren Längsende der helixförmigen Anordnung der konvex gebogenen Antennenelemente (2, 3) verbunden ist, und daß der Antennenkontaktabschnitt (1) aus der Ebene, in der die Stege (4, 5) welche die konvex gebogenen Antennenelemente (2, 3) verbinden, herausgebogen wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19918060 | 1999-04-21 | ||
DE19918060 | 1999-04-21 | ||
PCT/DE2000/001023 WO2000065684A2 (de) | 1999-04-21 | 2000-04-03 | Antenne, verwendung einer derartigen antenne und verfahren zur herstellung einer derartigen antenne |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1090437A1 EP1090437A1 (de) | 2001-04-11 |
EP1090437B1 true EP1090437B1 (de) | 2002-09-04 |
Family
ID=7905341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00934860A Expired - Lifetime EP1090437B1 (de) | 1999-04-21 | 2000-04-03 | Antenne, verwendung einer derartigen antenne und verfahren zur herstellung einer derartigen antenne |
Country Status (5)
Country | Link |
---|---|
US (1) | US6501438B2 (de) |
EP (1) | EP1090437B1 (de) |
CN (1) | CN1162940C (de) |
DE (1) | DE50000439D1 (de) |
WO (1) | WO2000065684A2 (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10003082A1 (de) * | 2000-01-25 | 2001-07-26 | Siemens Ag | Verfahren zur Herstellung einer Helix-Antennenstruktur |
DE10049410A1 (de) * | 2000-10-05 | 2002-04-11 | Siemens Ag | Mobiltelefon mit Mehrbandantenne |
DE60205181T2 (de) * | 2001-06-15 | 2006-06-01 | Hewlett-Packard Development Co., L.P., Houston | Mehrbandantenne mit zwei konzentrischen verschachtelten Antennen, wobei die äussere eine meanderförmige Antenne ist |
US6788270B2 (en) * | 2001-08-15 | 2004-09-07 | Flarion Technologies, Inc. | Movable antenna for wireless equipment |
JP2003218620A (ja) * | 2002-01-24 | 2003-07-31 | Hitachi Cable Ltd | 平板アンテナの製造方法 |
US6897830B2 (en) * | 2002-07-04 | 2005-05-24 | Antenna Tech, Inc. | Multi-band helical antenna |
EP1593181A2 (de) * | 2003-04-10 | 2005-11-09 | Matsushita Electric Industrial Co., Ltd. | Antennenelement, antennenmodul, und damit versehenes elektronisches gerät |
FR2863809B1 (fr) * | 2003-12-11 | 2006-03-31 | Wavecom | Dispositif de radiocommunication capable de fonctionner selon deux standards de communication |
US7183998B2 (en) * | 2004-06-02 | 2007-02-27 | Sciperio, Inc. | Micro-helix antenna and methods for making same |
FR2884650B1 (fr) * | 2005-04-18 | 2007-10-12 | Valeo Electronique Sys Liaison | Antenne |
US7375689B2 (en) | 2006-02-27 | 2008-05-20 | High Tech Computer Corp. | Multi-band antenna of compact size |
DE06025233T1 (de) * | 2006-12-06 | 2009-04-16 | High Tech Computer Corp. | Kompakte Mehrbandantenne |
US7538743B1 (en) * | 2007-11-15 | 2009-05-26 | International Business Machines Corporation | Balanced and shortened antennas |
KR101806556B1 (ko) * | 2011-08-02 | 2018-01-10 | 엘지이노텍 주식회사 | 안테나 및 모바일 디바이스 |
CN107208850A (zh) * | 2014-10-27 | 2017-09-26 | 飞利浦照明控股有限公司 | 无线led管状灯装置 |
US11284819B1 (en) * | 2021-03-15 | 2022-03-29 | Know Labs, Inc. | Analyte database established using analyte data from non-invasive analyte sensors |
US11284820B1 (en) * | 2021-03-15 | 2022-03-29 | Know Labs, Inc. | Analyte database established using analyte data from a non-invasive analyte sensor |
US11802843B1 (en) | 2022-07-15 | 2023-10-31 | Know Labs, Inc. | Systems and methods for analyte sensing with reduced signal inaccuracy |
US12033451B2 (en) | 2022-08-15 | 2024-07-09 | Know Labs, Inc. | Systems and methods for analyte-based access controls |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137206A (ja) * | 1982-02-09 | 1983-08-15 | Sony Corp | インダクタンス素子 |
EP0893841A1 (de) * | 1997-07-23 | 1999-01-27 | Matsushita Electric Industrial Co., Ltd. | Wendelförmige Spule, Verfahren zu deren Herstellung und Wendelantenne damit |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE29623485U1 (de) * | 1995-11-15 | 1998-07-30 | Allgon AB, Åkersberga | Doppelbandantennenvorrichtung |
JP3166589B2 (ja) * | 1995-12-06 | 2001-05-14 | 株式会社村田製作所 | チップアンテナ |
DE29623481U1 (de) | 1996-07-19 | 1998-09-10 | Steffgen, Alois, 66892 Bruchmühlbach-Miesau | Absaugvorrichtung für eine Werkzeugmaschine |
FI113214B (fi) * | 1997-01-24 | 2004-03-15 | Filtronic Lk Oy | Yksinkertainen kahden taajuuden antenni |
US5808586A (en) * | 1997-02-19 | 1998-09-15 | Motorola, Inc. | Side-by-side coil-fed antenna for a portable radio |
US5923305A (en) * | 1997-09-15 | 1999-07-13 | Ericsson Inc. | Dual-band helix antenna with parasitic element and associated methods of operation |
US6107970A (en) * | 1998-10-07 | 2000-08-22 | Ericsson Inc. | Integral antenna assembly and housing for electronic device |
-
2000
- 2000-04-03 EP EP00934860A patent/EP1090437B1/de not_active Expired - Lifetime
- 2000-04-03 DE DE50000439T patent/DE50000439D1/de not_active Expired - Fee Related
- 2000-04-03 CN CNB008006423A patent/CN1162940C/zh not_active Expired - Fee Related
- 2000-04-03 WO PCT/DE2000/001023 patent/WO2000065684A2/de active IP Right Grant
- 2000-12-21 US US09/745,542 patent/US6501438B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58137206A (ja) * | 1982-02-09 | 1983-08-15 | Sony Corp | インダクタンス素子 |
EP0893841A1 (de) * | 1997-07-23 | 1999-01-27 | Matsushita Electric Industrial Co., Ltd. | Wendelförmige Spule, Verfahren zu deren Herstellung und Wendelantenne damit |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 007, no. 251 (E - 209) 8 November 1983 (1983-11-08) * |
Also Published As
Publication number | Publication date |
---|---|
CN1310868A (zh) | 2001-08-29 |
DE50000439D1 (de) | 2002-10-10 |
CN1162940C (zh) | 2004-08-18 |
WO2000065684A2 (de) | 2000-11-02 |
US20010005183A1 (en) | 2001-06-28 |
EP1090437A1 (de) | 2001-04-11 |
US6501438B2 (en) | 2002-12-31 |
WO2000065684A3 (de) | 2001-03-01 |
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