EP0527417A1 - Miniaturisiertes Radioantennenelement - Google Patents

Miniaturisiertes Radioantennenelement Download PDF

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Publication number
EP0527417A1
EP0527417A1 EP92113233A EP92113233A EP0527417A1 EP 0527417 A1 EP0527417 A1 EP 0527417A1 EP 92113233 A EP92113233 A EP 92113233A EP 92113233 A EP92113233 A EP 92113233A EP 0527417 A1 EP0527417 A1 EP 0527417A1
Authority
EP
European Patent Office
Prior art keywords
antenna
slots
antenna according
slot
cavity
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.)
Granted
Application number
EP92113233A
Other languages
English (en)
French (fr)
Other versions
EP0527417B1 (de
Inventor
Gérard Raguenet
Michel Gomez-Henry
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.)
Alcatel Espace Industries SA
Original Assignee
Alcatel Espace Industries SA
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 Alcatel Espace Industries SA filed Critical Alcatel Espace Industries SA
Publication of EP0527417A1 publication Critical patent/EP0527417A1/de
Application granted granted Critical
Publication of EP0527417B1 publication Critical patent/EP0527417B1/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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/0006—Particular feeding systems
    • H01Q21/0075—Stripline fed arrays
    • H01Q21/0081—Stripline fed arrays using suspended striplines
    • 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
    • H01Q13/18—Resonant slot antennas the slot being backed by, or formed in boundary wall of, a resonant cavity ; Open cavity antennas

Definitions

  • the present invention relates to a miniaturized elementary radio antenna, intended in particular for VHF waves. and U.H.F., that is to say the waves included in a frequency range covering from the small hundred megahertz up to a few Gigahertz only.
  • Such an antenna is in particular intended to equip a radio communications satellite.
  • V.H.F. or U.H.F. the most formerly used are the wire antennas. At these relatively low frequencies, these antennas have large dimensions, which is very penalizing in terms of weight and size for a satellite. In addition, precisely because of this large size, they must be folded for storage and when launching the satellite, then deployed when the latter is finally in orbit. This necessitates the provision of a complex, expensive, bulky, heavy deployment mechanism, and moreover subject to a risk of breakdown when it is actuated once the satellite is put into orbit.
  • this miniaturized elementary antenna consists of a flat cavity 1, for example of Aluminum and of rectangular section, with for example 10 to 15 centimeters on a side and a low height (to minimize the bulk ) of for example 5 centimeters, and one of the large faces of which, for example the upper face 2 is perforated with a fine radiating slit 3 which is, according to the invention, dimensioned totally below the resonance: instead of have a length equal to half the wavelength, that is L / 2, its length is a much smaller fraction of it, for example of the order of L / 10 or even L / 20.
  • the excitation of the slot 3 is carried out in a conventional manner, for example by a probe 4 which extends the core a tri-plate line 5 connected to the cavity 1 via a connector 6.
  • an impedance matching circuit in itself being able to be very conventional, is provided between the antenna and the corresponding main supply line.
  • FIG. 3 represents the block diagram of the circuit for connecting this antenna 1.3 to its main line 7, represented in the form of a quadrupole.
  • An impedance matching circuit 8 is therefore provided between the antenna 1.3 and this main line 7, to remedy the mismatch in impedance of this antenna.
  • the dimensions of the slot 3 and of the associated cavity 1 can be any, provided that they are much smaller than those which correspond to the resonance condition.
  • the layout of the radiation diagrams of this antenna for various frequencies included in the VHF-UHF range shows that there are frequencies for which this diagram presents a dip in the axial direction of the radiation, and a preponderant lobe on both sides. other of it, about 40 to 60 degrees.
  • Such a characteristic is particularly advantageous in the case of antennas on board a satellite, because it then coincides with the optimal radiation pattern, so that ultimately it will sometimes be wise to choose a slot length which provides, for the frequency or frequencies VHF or UHF used, a diagram of this type, that is to say having a hollow for the direction of axial radiation, this hollow defining two lateral lobes on either side at about 40 to 60 degrees.
  • FIGS. 4 to 12 which will now be described illustrate some alternative embodiments of this antenna among many others.
  • the embodiment according to FIG. 4 differs from that according to FIG. 1 by the fact that the single slot 3 is replaced by a network of five parallel and identical slots 3A to 3E, which makes it possible to obtain an antenna with better gain and better management of the radiation pattern.
  • An antenna of this type can be used either to obtain a distribution law corresponding to a well determined diagram, or to radiate on four determined frequencies with a single and same impedance matching circuit.
  • a multi-slot antenna can comprise, for example to obtain a determined radiation diagram, several parallel slots 3M, 3N, 3P, 3Q, which are offset with respect to each other in the lateral direction, i.e. in the direction orthogonal to probe 4.
  • the antennas described so far are made to radiate a linear polarization. It is also possible, according to Figures 7 to 10 for example, to carry out an antenna according to the invention and intended to radiate a circular polarization.
  • the cavity is perforated with two identical slots 3R, 3S which are orthogonal to one another and arranged in a Greek cross, the center of which coincides with that of the square surface 2.
  • the slot 3R is supplied by a probe 4A which is orthogonal thereto, while the slot 3S is similarly supplied by another probe 4B.
  • the two probes 4A, 4B are therefore orthogonal. So that the wave radiated by the cross slit 3R, 3S is of circular polarization, these two probes 4A, 4B are supplied by waves of the same frequency and in phase quadrature.
  • FIG. 11 shows another variant of this antenna, which comprises two orthogonal supply probes 4A, 4B each supplying a network 3T, 3U of parallel and all identical slots. We thus obtain a bi-polarization and multi-slot antenna.
  • FIG. 12 shows a variant of this antenna with two polarizations and two networks 3T, 3U of slots, for which the slots of the 3T network are significantly shorter than those of the 3U network.
  • Such an antenna is desirable in the case of an antenna intended to radiate two waves of very different frequencies and with orthogonal polarizations.
  • the invention is in no way limited to the exemplary embodiments which have just been described.
  • this elementary antenna by completely or partially filling the cavity 1 with a dielectric material, such as Alumina for example.
  • the section of this cavity can of course be circular, or other, instead of rectangular.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
EP92113233A 1991-08-07 1992-08-03 Miniaturisiertes Radioantennenelement Expired - Lifetime EP0527417B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110066A FR2680283B1 (fr) 1991-08-07 1991-08-07 Antenne radioelectrique elementaire miniaturisee.
FR9110066 1991-08-07

Publications (2)

Publication Number Publication Date
EP0527417A1 true EP0527417A1 (de) 1993-02-17
EP0527417B1 EP0527417B1 (de) 1995-12-20

Family

ID=9416010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113233A Expired - Lifetime EP0527417B1 (de) 1991-08-07 1992-08-03 Miniaturisiertes Radioantennenelement

Country Status (6)

Country Link
US (1) US5489913A (de)
EP (1) EP0527417B1 (de)
JP (1) JPH05199031A (de)
CA (1) CA2075451A1 (de)
DE (1) DE69206915T2 (de)
FR (1) FR2680283B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598580A1 (de) * 1992-11-16 1994-05-25 Hughes Missile Systems Company Kreuz-Schlitz-Mikrowellenantenne
FR2705167A1 (fr) * 1993-05-11 1994-11-18 France Telecom Antenne plaquée large bande à encombrement réduit, et dispositif d'émission/réception correspondant.
WO1998054787A1 (de) * 1997-05-30 1998-12-03 Kathrein-Werke Kg Antennenanordnung
EP1381112A2 (de) * 2002-07-09 2004-01-14 Silvia Hofmann Planare Mikrowellenantenne
WO2005031919A1 (en) * 2003-09-30 2005-04-07 Astone Technology Co., Ltd. Broadband slot array antenna
WO2009060181A1 (en) 2007-11-05 2009-05-14 Micrima Limited Antenna for investigating structure of human or animal
CN103904423A (zh) * 2012-12-28 2014-07-02 中国航空工业第六○七研究所 一种低剖面宽带介质背腔四辐射器天线单元

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JP2647622B2 (ja) * 1994-05-16 1997-08-27 株式会社エイ・ティ・アール光電波通信研究所 スロット結合型マイクロストリップアンテナ
JP3042364B2 (ja) * 1995-05-19 2000-05-15 株式会社村田製作所 誘電体アンテナ
SE507077C2 (sv) * 1996-05-17 1998-03-23 Allgon Ab Antennanordning för en portabel radiokommunikationsanordning
DE19628125A1 (de) * 1996-07-12 1998-01-15 Daimler Benz Ag Aktive Empfangsantenne
JP3684285B2 (ja) * 1997-03-10 2005-08-17 株式会社日立製作所 同調型スロットアンテナ
US6043786A (en) * 1997-05-09 2000-03-28 Motorola, Inc. Multi-band slot antenna structure and method
US5977916A (en) * 1997-05-09 1999-11-02 Motorola, Inc. Difference drive diversity antenna structure and method
JPH11251829A (ja) * 1998-02-27 1999-09-17 Kyocera Corp スロットアンテナ及びそれを具備する配線基板
GB2344201A (en) * 1998-11-27 2000-05-31 Caradon Friedland Limited Apparatus for door entry control and/or door entry request indication
WO2001052353A2 (en) * 2000-01-12 2001-07-19 Emag Technologies L.L.C. Low cost compact omni-directional printed antenna
US6664932B2 (en) * 2000-01-12 2003-12-16 Emag Technologies, Inc. Multifunction antenna for wireless and telematic applications
US6288679B1 (en) * 2000-05-31 2001-09-11 Lucent Technologies Inc. Single element antenna structure with high isolation
JP2002076757A (ja) * 2000-09-01 2002-03-15 Hitachi Ltd スロットアンテナを用いた無線端末
US6593891B2 (en) * 2001-10-19 2003-07-15 Hitachi Cable, Ltd. Antenna apparatus having cross-shaped slot
US6778144B2 (en) * 2002-07-02 2004-08-17 Raytheon Company Antenna
US6664931B1 (en) 2002-07-23 2003-12-16 Motorola, Inc. Multi-frequency slot antenna apparatus
JP2004266573A (ja) * 2003-02-28 2004-09-24 Nissei Electric Co Ltd 多周波アンテナ素子及び多周波アンテナ
JP4507507B2 (ja) * 2003-04-30 2010-07-21 日星電気株式会社 多周波アンテナ
FR2857165A1 (fr) * 2003-07-02 2005-01-07 Thomson Licensing Sa Antenne bi-bande avec double acces
US7129902B2 (en) * 2004-03-12 2006-10-31 Centurion Wireless Technologies, Inc. Dual slot radiator single feedpoint printed circuit board antenna
FR2873236A1 (fr) * 2004-07-13 2006-01-20 Thomson Licensing Sa Dispositif rayonnant omnidirectionnel large bande
US7522114B2 (en) * 2005-02-09 2009-04-21 Pinyon Technologies, Inc. High gain steerable phased-array antenna
JP5088689B2 (ja) 2005-11-18 2012-12-05 日本電気株式会社 スロットアンテナ及び携帯無線端末
US7518564B2 (en) * 2006-05-24 2009-04-14 Twisthink, L.L.C. Slot antenna
US7804458B2 (en) * 2007-03-25 2010-09-28 Skycross, Inc. Slot antenna
US20090073066A1 (en) * 2007-09-14 2009-03-19 M/A-Com, Inc. Grid Antenna
US8373610B2 (en) * 2007-12-18 2013-02-12 Apple Inc. Microslot antennas for electronic devices
US7619577B1 (en) * 2008-04-24 2009-11-17 Yi-Tsan Cheng Open-slot antenna
US20090322621A1 (en) * 2008-06-30 2009-12-31 Qualcomm Incorporated Antenna array configurations for high throughput mimo wlan systems
CN101752675B (zh) * 2008-12-16 2013-05-29 深圳富泰宏精密工业有限公司 双频天线及应用该双频天线的无线通信装置
US8896487B2 (en) * 2009-07-09 2014-11-25 Apple Inc. Cavity antennas for electronic devices
US8274439B2 (en) * 2009-09-29 2012-09-25 The Boeing Company High power, low profile, broadband antenna
US20110193759A1 (en) * 2010-02-08 2011-08-11 You-Cheng You Antenna Device
US8648758B2 (en) * 2010-05-07 2014-02-11 Raytheon Company Wideband cavity-backed slot antenna
JP5310707B2 (ja) * 2010-12-15 2013-10-09 横河電機株式会社 耐圧防爆容器
TWI587571B (zh) * 2012-10-31 2017-06-11 群邁通訊股份有限公司 天線組件
KR101309572B1 (ko) * 2013-05-30 2013-09-17 주식회사 이엠따블유 안테나
JP6282653B2 (ja) * 2013-08-09 2018-02-21 華為終端（東莞）有限公司 印刷回路基板アンテナ及び端末
TWI539677B (zh) * 2013-11-22 2016-06-21 宏碁股份有限公司 具有耦合饋入多頻天線元件的通訊裝置
CN104168730B (zh) * 2014-02-26 2019-06-11 深圳富泰宏精密工业有限公司 壳体、应用该壳体的电子装置及其制作方法
CN104540340B (zh) * 2014-10-23 2018-09-25 深圳富泰宏精密工业有限公司 壳体、应用该壳体的电子装置及其制作方法
JP6515558B2 (ja) * 2015-02-04 2019-05-22 富士通株式会社 積層型導波路、無線通信モジュール、及び、無線通信システム
CN107851890B (zh) * 2015-07-24 2020-12-22 Ａｇｃ株式会社 玻璃天线和具有玻璃天线的车辆用窗玻璃
CN106602276A (zh) * 2016-11-30 2017-04-26 中国铁塔股份有限公司长春市分公司 一种wlan天线
EP3582326B1 (de) * 2018-06-15 2021-10-06 Nokia Solutions and Networks Oy Antennenkopplung
EP3627713B1 (de) 2018-09-20 2022-12-28 Swisscom AG Verfahren und vorrichtung
GB2577295B (en) * 2018-09-20 2021-07-28 Swisscom Ag Method and apparatus
US12062848B2 (en) 2018-11-09 2024-08-13 Sony Group Corporation Antenna apparatus
CA3126365C (en) 2019-01-30 2024-05-28 Huawei Technologies Co., Ltd. Dual-polarization antenna array
US11276942B2 (en) * 2019-12-27 2022-03-15 Industrial Technology Research Institute Highly-integrated multi-antenna array
US11271302B2 (en) * 2020-07-01 2022-03-08 Mano D. Judd Wideband wave construction method for controlling, rotating, or shaping radio frequency or acoustic waves in free space or in a fluid
IT202100002273A1 (it) * 2021-02-03 2022-08-03 Free Space SRL Antenna a slot con cavità compatta ed a banda larga.
CN113161752A (zh) * 2021-04-12 2021-07-23 广州智讯通信系统有限公司 一种圆极化背腔缝隙天线
WO2024012659A1 (en) * 2022-07-12 2024-01-18 Huawei Technologies Co., Ltd. Cavity-slot antenna apparatus and wireless communication apparatus

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598580A1 (de) * 1992-11-16 1994-05-25 Hughes Missile Systems Company Kreuz-Schlitz-Mikrowellenantenne
FR2705167A1 (fr) * 1993-05-11 1994-11-18 France Telecom Antenne plaquée large bande à encombrement réduit, et dispositif d'émission/réception correspondant.
WO1998054787A1 (de) * 1997-05-30 1998-12-03 Kathrein-Werke Kg Antennenanordnung
DE19722742A1 (de) * 1997-05-30 1998-12-10 Kathrein Werke Kg Antennenanordnung
AU729918B2 (en) * 1997-05-30 2001-02-15 Kathrein-Werke Kg Antenna system
US6195063B1 (en) 1997-05-30 2001-02-27 Kathrein-Werke Kg Dual-polarized antenna system
DE19722742C2 (de) * 1997-05-30 2002-07-18 Kathrein Werke Kg Dualpolarisierte Antennenanordnung
EP1381112A2 (de) * 2002-07-09 2004-01-14 Silvia Hofmann Planare Mikrowellenantenne
EP1381112A3 (de) * 2002-07-09 2005-01-12 Silvia Hofmann Planare Mikrowellenantenne
WO2005031919A1 (en) * 2003-09-30 2005-04-07 Astone Technology Co., Ltd. Broadband slot array antenna
WO2009060181A1 (en) 2007-11-05 2009-05-14 Micrima Limited Antenna for investigating structure of human or animal
CN103904423A (zh) * 2012-12-28 2014-07-02 中国航空工业第六○七研究所 一种低剖面宽带介质背腔四辐射器天线单元
CN103904423B (zh) * 2012-12-28 2016-07-13 中国航空工业第六○七研究所 一种低剖面宽带介质背腔四辐射器天线单元

Also Published As

Publication number Publication date
CA2075451A1 (fr) 1993-02-08
JPH05199031A (ja) 1993-08-06
DE69206915T2 (de) 1996-05-15
FR2680283B1 (fr) 1993-10-01
US5489913A (en) 1996-02-06
FR2680283A1 (fr) 1993-02-12
EP0527417B1 (de) 1995-12-20
DE69206915D1 (de) 1996-02-01

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