EP0886889B1 - Breitbandige gedruckte gruppenantenne - Google Patents

Breitbandige gedruckte gruppenantenne Download PDF

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Publication number
EP0886889B1
EP0886889B1 EP97952073A EP97952073A EP0886889B1 EP 0886889 B1 EP0886889 B1 EP 0886889B1 EP 97952073 A EP97952073 A EP 97952073A EP 97952073 A EP97952073 A EP 97952073A EP 0886889 B1 EP0886889 B1 EP 0886889B1
Authority
EP
European Patent Office
Prior art keywords
antenna
patches
lines
array antenna
centre
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
EP97952073A
Other languages
English (en)
French (fr)
Other versions
EP0886889A1 (de
Inventor
Jean-Pierre Thomson-CSF S.C.P.I. DANIEL
Mohamed-Thomson-Csf S.C.P.I. Himdi
Daniel-Thomson-Csf S.C.P.I. Gaudin
Jean-Pierre-Thomson-Csf S.C.P.I. David
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.)
Thales SA
Original Assignee
Thales 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 Thales SA filed Critical Thales SA
Publication of EP0886889A1 publication Critical patent/EP0886889A1/de
Application granted granted Critical
Publication of EP0886889B1 publication Critical patent/EP0886889B1/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
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array

Definitions

  • the present invention relates to a printed network antenna wide band intended to provide a main lobe substantially of revolution around an axis passing through its center.
  • pellet antennas in Anglo-Saxon literature
  • Anglo-Saxon literature are still little used despite their interest, due to the ease of realization by known techniques for manufacturing printed circuits.
  • An object of the invention is therefore a printed network antenna of small footprint thanks to the use of tablets and having a substantially revolution diagram over a very wide band.
  • a printed network antenna is therefore provided.
  • wide band to provide a substantially revolving main lobe around an axis passing through the center (A) of the antenna, said antenna comprising a plurality of substantially square radiating pellets supplied by microstrip lines. Feeding by said lines from the center (A) of the antenna is of the tree type. Each pellet is fed at an angle by one of said lines which partially overlaps said angle.
  • the distribution of the pellets is not periodic so as to limit the side lobes in the radiation pattern of the antenna and to spread the network lobes, the pads on the periphery of the antenna in this direction having a spacing greater than that of the pellets towards the center of the antenna.
  • FIG. 1 is a plan view of the antenna according to the invention.
  • This antenna 1 uses a network of pads ("patch") 10.11 distributed over a area limited here by an octagon without this being in any way limiting.
  • These pellets are powered by a network of power lines 40 from from a central point A where the signal is applied, for example via of a coaxial.
  • FIGS. 2 and 3 are partial sections through the antenna 1.
  • the antenna is produced using the printed circuit technique and includes a first dielectric layer 12, for example made of polypropylene, one side of which carries a metallization 13 serving as a ground plane and the other face of which comprises the pellets 10 (one of them is shown).
  • a layer of dielectric foam 3 much more thick which in turn carries a second dielectric layer 2, by example in epoxy glass, the face of which in contact with the foam bears parasites 20 opposite each of the pellets 10.
  • These parasites have preferably the same shape as the pellets but are smaller and allow to broaden the bandwidth of the antenna.
  • the thickness h2 of the dielectric foam layer 3 is preferably three to four times the thickness h3 of the first layer dielectric 12. Thanks to this structure, the second dielectric layer 2 carrying the parasites also serves as a radome for the antenna.
  • Figure 3 shows, in plan view, a pellet 10 and its supply.
  • This patch is square, side a ; opposite it is the corresponding parasite 20 on side b smaller than a .
  • the pellet is supplied at an angle through its angle 100 which is connected to the line 40 at 90 ° from the diagonal of the pellet.
  • the size of the overlap between line and patch makes it possible in particular to adapt the impedance of the assembly.
  • the advantage of the angle feed with a tree feed as shown in Figure 1 is that this eliminates for each pastille an elbow on the line, which would otherwise be necessary if the departure of line 40 from the angle 100 was made in the direction of the diagonal of the patch leading to the angle. This eliminates a significant cause of losses due to elbows on the entire network.
  • the distribution of the pellets on the antenna could be done periodically as is classic in network antennas.
  • the pads 10 of the center of the antenna are distributed periodically with a periodicity of 0.8 ⁇ , where ⁇ is the central wavelength of the antenna bandwidth, and the pads 11 from the periphery in the direction of field E have a greater spacing, for example 0.9 ⁇ .
  • ⁇ is the central wavelength of the antenna bandwidth
  • the pads 11 from the periphery in the direction of field E have a greater spacing, for example 0.9 ⁇ .
  • the level of the lobes secondary is always less than -16 dB.
  • a network antenna with small footprint and weight, with protection by radome with protection by radome, a very wide bandwidth (greater than 10% for a R O S ⁇ 1.5), a diagram of radiation of revolution and a weak level of side lobes.
  • the antenna according to the invention is little sensitive to the positioning of parasites which widen the bandwidth.
  • the tree feeding of the pellets by an angle reduces the losses.

Landscapes

  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)

Claims (8)

  1. Gedruckte Breitband-Netzantenne zur Lieferung einer bezüglich einer durch das Zentrum (A) der Antenne verlaufenden Achse im wesentlichen drehsymmetrischen Hauptkeule, wobei die Antenne mehrere im wesentlichen quadratisch geformte strahlende Flecken (10, 11) enthält, die über Mikrostrip-Leitungen (40) gespeist werden, und wobei die Speisung der Mikrostrip-Leitungen (40) vom Zentrum (A) der Antenne ausgehend sich baumförmig verzweigt und jeder Fleck (10, 11) an einer Ecke durch eine der Leitungen (40) gespeist wird, dadurch gekennzeichnet, daß die einen Fleck an einer Ecke speisende Leitung diese Ecke (100) teilweise überlappt und daß die Verteilung der Flecken gemäß mindestens einer Richtung (E, H, D) der Antennenebene nichtperiodisch ist, sodaß die Nebenkeulen im Strahlungsdiagramm der Antenne begrenzt werden und die Keulen des Netzes einen Abstand voneinander bekommen, wobei die Flecken (11) an der Peripherie der Antenne in dieser Richtung einen größeren Abstand als die Flecken (10) im Zentrum der Antenne besitzen.
  2. Netzantenne nach Anspruch 1, dadurch gekennzeichnet, daß die erwähnte Richtung diejenige der Ebene E der Antenne ist.
  3. Netzantenne nach einem beliebigen der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Speiseleitungen so ausgebildet sind, daß sie die von jedem Fleck (10, 11) abgestrahlte Energie so gewichten, daß eine im wesentliche drehsymmetrische Hauptkeule in einem großen Frequenzband erzielt wird.
  4. Antenne nach einem beliebigen der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Antenne in zwei Gruppen von zwei aufeinanderfolgenden Sektoren unterteilt ist, wobei jeder Sektor baumförmig ausgehend von einer Hauptleitung (41 bis 44) gespeist wird und die Hauptleitungen (41, 44; 42, 43) der Sektoren einer Gruppe über eine zentrale Leitung (45; 46) miteinander verbunden sind, und daß die Speisung ausgehend vom Zentrum (A) der Antenne über eine Verteilungsleitung (47) erfolgt, die dieses- Zentrum (A) mit den zentralen Leitungen der beiden Gruppen verbindet.
  5. Netzantenne nach einem beliebigen der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie eine erste dielektrische Schicht (12), deren eine Seite mit einer MasseSchicht (13) bedeckt ist und deren andere Seite die Flecken (10, 11) und die Speiseleitungen (40), dann eine Lage (3) aus dielektrischem Schaum und schließlich eine zweite dielektrische Schicht (2) trägt, deren zur Schaumlage gerichtete Seite den Flecken gegenüberliegend Parasiten (20) gleicher Form wie diese aufweist, die das Durchlaßband der Antenne verbreitern.
  6. Netzantenne nach Anspruch 5, dadurch gekennzeichnet, daß die Parasiten (20) geringere Abmessungen als die entsprechenden Flecken (10, 11) aufweisen.
  7. Netzantenne nach einem der Ansprüche 5 und 6, dadurch gekennzeichnet, daß die zweite dielektrische Schicht (2) aus Epoxy-Glas ist, um als Radom für die Antenne zu dienen.
  8. Netzantenne nach Anspruch 7, dadurch gekennzeichnet, daß die erste Schicht (12) aus Polypropylen ist und daß die Dicke (h3) der ersten Schicht (12) drei- bis viermal geringer als die Dicke der Lage (3) aus dielektrischem Schaum ist.
EP97952073A 1996-12-17 1997-12-16 Breitbandige gedruckte gruppenantenne Expired - Lifetime EP0886889B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9615510 1996-12-17
FR9615510A FR2757315B1 (fr) 1996-12-17 1996-12-17 Antenne reseau imprimee large bande
PCT/FR1997/002314 WO1998027616A1 (fr) 1996-12-17 1997-12-16 Antenne reseau imprimee large bande

Publications (2)

Publication Number Publication Date
EP0886889A1 EP0886889A1 (de) 1998-12-30
EP0886889B1 true EP0886889B1 (de) 2003-04-16

Family

ID=9498762

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97952073A Expired - Lifetime EP0886889B1 (de) 1996-12-17 1997-12-16 Breitbandige gedruckte gruppenantenne

Country Status (8)

Country Link
US (1) US6031491A (de)
EP (1) EP0886889B1 (de)
JP (1) JP2000505978A (de)
KR (1) KR100453030B1 (de)
CN (1) CN1211346A (de)
DE (1) DE69720982T2 (de)
FR (1) FR2757315B1 (de)
WO (1) WO1998027616A1 (de)

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FR2779578B1 (fr) * 1998-06-04 2002-11-29 Centre Nat Etd Spatiales Procede pour la determination des amplitudes et phases des differentes voies d'un reseau d'emission de signaux electromagnetiques, tel qu'une antenne de satellite de telecommunication
DE19850895A1 (de) * 1998-11-05 2000-05-11 Pates Tech Patentverwertung Mikrowellenantenne mit optimiertem Kopplungsnetzwerk
US6208313B1 (en) * 1999-02-25 2001-03-27 Nortel Networks Limited Sectoral antenna with changeable sector beamwidth capability
US6664932B2 (en) * 2000-01-12 2003-12-16 Emag Technologies, Inc. Multifunction antenna for wireless and telematic applications
US6388621B1 (en) 2000-06-20 2002-05-14 Harris Corporation Optically transparent phase array antenna
FR2811142B1 (fr) * 2000-06-29 2002-09-20 Thomson Multimedia Sa Dispositif d'emission et/ou de reception d'ondes electromagnetiques alimente par un reseau realise en technologie microruban
DE10052748A1 (de) * 2000-10-25 2002-05-29 Technisat Elektronik Thueringe Planarantenne mit verbesserter Richtcharakteristik
KR100461767B1 (ko) * 2000-11-28 2004-12-14 주식회사 마이크로페이스 케이유밴드용 마이크로스트립 패치 어레이 안테나
US6667724B2 (en) * 2001-02-26 2003-12-23 Time Domain Corporation Impulse radar antenna array and method
KR100745043B1 (ko) * 2001-10-26 2007-08-01 건수산업 주식회사 와이드밴드 통합 안테나
KR100442135B1 (ko) * 2002-03-19 2004-07-30 에스케이 텔레콤주식회사 이동 통신 기지국용 다중 빔 배열 안테나 장치
US7705782B2 (en) * 2002-10-23 2010-04-27 Southern Methodist University Microstrip array antenna
US6947008B2 (en) * 2003-01-31 2005-09-20 Ems Technologies, Inc. Conformable layered antenna array
BR0317194A (pt) * 2003-01-31 2005-11-29 Ems Technologies Inc Conjunto conformável de antenas dispostos em camadas
US6943749B2 (en) * 2003-01-31 2005-09-13 M&Fc Holding, Llc Printed circuit board dipole antenna structure with impedance matching trace
US6850197B2 (en) * 2003-01-31 2005-02-01 M&Fc Holding, Llc Printed circuit board antenna structure
US7345632B2 (en) * 2003-02-12 2008-03-18 Nortel Networks Limited Multibeam planar antenna structure and method of fabrication
EP1645009A1 (de) * 2003-07-16 2006-04-12 Huber + Suhner Ag Dual polarisierte microstrip-patch-antenne
TWM260885U (en) * 2004-07-09 2005-04-01 Inpaq Technology Co Ltd Antenna structure
US7423605B2 (en) * 2006-01-13 2008-09-09 Research In Motion Limited Mobile wireless communications device including an electrically conductive director element and related methods
EP2081251B1 (de) * 2008-01-15 2018-07-11 HMD Global Oy Patchantenne
EP2315312A1 (de) * 2009-10-22 2011-04-27 Toyota Motor Europe NV Antenne mit schwach besetzter Gruppe von Elementen
DE102010040809A1 (de) 2010-09-15 2012-03-15 Robert Bosch Gmbh Planare Gruppenantenne mit in mehreren Ebenen angeordneten Antennenelementen
US9124006B2 (en) * 2011-03-11 2015-09-01 Autoliv Asp, Inc. Antenna array for ultra wide band radar applications
KR101338787B1 (ko) 2012-02-09 2013-12-06 주식회사 에이스테크놀로지 레이더 배열 안테나
CN103311663B (zh) * 2013-05-16 2015-03-04 厦门大学 带加载孔的高阶改进型树状分形超宽带陷波天线
CN103646144B (zh) * 2013-12-19 2017-03-08 西安电子科技大学 非周期阵列天线设计方法
KR102063826B1 (ko) 2014-01-23 2020-01-08 엘지이노텍 주식회사 레이더 시스템의 안테나 장치
CN105322291B (zh) * 2014-07-24 2019-07-23 深圳光启创新技术有限公司 微带阵列天线
JP2016127453A (ja) * 2015-01-05 2016-07-11 株式会社東芝 アレーアンテナ装置

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Also Published As

Publication number Publication date
DE69720982T2 (de) 2004-02-19
CN1211346A (zh) 1999-03-17
US6031491A (en) 2000-02-29
WO1998027616A1 (fr) 1998-06-25
JP2000505978A (ja) 2000-05-16
FR2757315B1 (fr) 1999-03-05
EP0886889A1 (de) 1998-12-30
KR19990082640A (ko) 1999-11-25
KR100453030B1 (ko) 2004-12-16
FR2757315A1 (fr) 1998-06-19
DE69720982D1 (de) 2003-05-22

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