EP0497702B1 - Strahlerstruktur einer ebenen Antenne - Google Patents

Strahlerstruktur einer ebenen Antenne Download PDF

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Publication number
EP0497702B1
EP0497702B1 EP92400247A EP92400247A EP0497702B1 EP 0497702 B1 EP0497702 B1 EP 0497702B1 EP 92400247 A EP92400247 A EP 92400247A EP 92400247 A EP92400247 A EP 92400247A EP 0497702 B1 EP0497702 B1 EP 0497702B1
Authority
EP
European Patent Office
Prior art keywords
line
radiating
conductive
ground plane
slot
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
EP92400247A
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English (en)
French (fr)
Other versions
EP0497702A1 (de
Inventor
Olivier Remondière
Jean-François 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.)
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 EP0497702A1 publication Critical patent/EP0497702A1/de
Application granted granted Critical
Publication of EP0497702B1 publication Critical patent/EP0497702B1/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
    • 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
    • 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
    • H01Q21/064—Two dimensional planar arrays using horn or slot aerials
    • 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
    • H01Q9/0464—Annular ring patch

Definitions

  • the invention relates to a radiating device for a planar antenna and in particular for a network antenna.
  • the frequencies covered range from UHF and VHF waves to millimeter waves.
  • the radiating elements are individually controlled in amplitude and / or in phase, this is called an active antenna: It is indeed possible to choose the shape of the antenna radiation diagram so as, for example, to select zones very different coverage (narrow, wide or formed beam) or perform an electronic scan.
  • the radiating elements which form the antenna condition the final performance, the technical characteristics (mass, environmental behavior, reliability), and the cost thereof by their intrinsic radio performance, their ability to be networked and their technology.
  • An antenna being made up of a few tens to a few thousand of such radiating elements, the unit cost of these is decisive in the overall cost of the antenna. This same type of reasoning also applies to other parameters such as mass.
  • the choice of technologies is important because it simplifies the conditions for adapting the antenna to its environment: For example, for space applications in geostationary orbit, it is important to be able to thermally control the antenna by simple means ( thermal blankets, paints) without using a demand for reheating power which affects the energy balance of the system. Under these conditions, temperature ranges as wide as -150 ° C; + 120 ° C can be obtained taking into account the thermo-optical characteristics of the surfaces.
  • Such an antenna is, moreover, subjected to flows of charged particles which must neither deteriorate the materials, nor cause electrostatic discharges after accumulation on insulating areas or poorly connected to ground.
  • An antenna must, moreover, retain all of its radioelectric qualities after having undergone the strong mechanical stresses due to launching.
  • the object of the invention is to solve these various problems.
  • a radiating device for a planar antenna comprising a first and a second ground plane, a slot, formed in the first ground plane, being supplied by electromagnetic coupling from a supply line, characterized in that it comprises an assembly of several conductive pieces of small thickness assembled together, the central part of the radiating slot being a conductive piece supported at its center by a support column.
  • this device comprises a body, forming a cavity, which is a machined metal part ensuring the various functions of lower ground plane for the central part of the radiating slot and for the supply line, of mechanical structure of the entire device, interface with a support structure for the entire radiating slot and support for the electrical interface between the supply line and this slot.
  • This device comprises a conductive cover attached to the body to constitute the upper ground plane allowing propagation in the line; this line being a conductive track maintained in the middle of the ground planes by dielectric spacers.
  • This device includes moreover, a coaxial cable for supplying the line, the core of which is soldered or welded on this line, and the external conductor of which is soldered or soldered directly to the body.
  • this device can be executed in the form of a sub-array of four identical elementary radiating elements, produced in a single mechanical assembly; a propagation line, which feeds four annular slots, comprising a 1 by 4 divider part between the radiating elements.
  • such a radiating device has a low mass, a low cost and remarkable radioelectric performance.
  • This device can be used both in isolation and within a network antenna. It has technical and economic qualities which are particularly suitable for spatial application, although simple adjustments do not call into question possible applications in other fields.
  • the radiating element is commonly called an annular slot.
  • annular slot Such an element is described in the article entitled "a new circularly polarized planar antenna fed by electromagnetical coupling and its subarray" by M. Haneishi, Y. Hakura, S. Saito, and T. Hasegawa ("18th European microwave conference proceeding" ; 12-15 September 1988; Swiss: pages 1074-1079).
  • a slot 10 is formed in a first ground plane 11. It is supplied by electromagnetic coupling from a supply line 12, of the triplate type, located at a lower level between the first ground plane. 11 and a second ground plane 13; this line 12 being held in position by a dielectric element 14.
  • the radiating device is shown in the Figures 2 and 3. It comprises a body 16 forming a cavity 24, a radiating annular slot 25 which is formed between the latter and a central disc (or "patch") 15, and a supply line 17.
  • the body 16 is a conductive piece, for example metallic, preferably machined in a single block, which performs the various functions of lower ground plane for the "patch” 15 and for the supply line 17, of mechanical structure of the assembly of the device, of interface with a supporting structure for the whole of the radiating slot 25 and of support for the electrical interface between the supply line and this slot 25.
  • the "patch" 15 is formed by a conductive part, for example circular, supported by a support column 18.
  • a conductive cover 19 is attached to the body 16 to form the upper ground plane allowing propagation in line 17.
  • This line 17 is a conductive track, monolithic or etched, held in the middle of the ground planes 16 and 19 by dielectric spacers 20. It can be supplied for example using a coaxial line 21.
  • the core 22 of this coaxial line 21 can be welded, or brazed, on line 17, while the external conductor 23 is welded or brazed directly on the body 16.
  • a couple of coaxial connectors is thus avoided.
  • excellent contacts are made between these different elements. These elements can either be obtained from the same block of material, or welded together (laser, electron bombardment, plasma, ...) or brazed with a filler metal known for its good properties with respect to PIMP generation.
  • This radiating device as shown in FIGS. 2 and 3, can be used alone or grouped in a sub-network, with the advantageous possibility of producing the distribution circuit of this sub-network on the same three-line line level.
  • the invention therefore provides a concrete, industrial, economical technological solution which presents exceptional radio performance, in particular from the point of view of losses and generation of passive intermodulation products (PIMP). It presents in in addition to great environmental stability, by simplifying the conditions of thermal control and protection against radiation (“Electro Static Discharge” phenomena).
  • PIMP passive intermodulation products
  • the various conductive parts used are made of light alloys, composite materials with a metallic matrix or any other insulating or conductive material provided that it is metallized; these parts being assembled together by welding, and / or by brazing, selected for their low generation of PIMP. These parts have very thin walls; the necessary stiffness or additional resistance being provided by local reinforcements.
  • Against by the support column 18 may optionally be made of dielectric material, and the pins 20 are made of dielectric.
  • a radiating device of the L-band subnetwork type with circular monopolarization comprises a sub-network of four elementary radiating elements identical to the previous one. This sub-network is produced in a single mechanical assembly. The propagation line supplying the annular slots then comprises a divider part (25) 1 by 4 between the radiating elements.
  • the production technology is identical in all respects to that described above.

Landscapes

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

Claims (8)

  1. Strahlende Vorrichtung für eine ebene Antenne, die eine untere und eine obere Masseebene aufweist, wobei ein Schlitz (25) in der oberen Masseebene um einen zentralen Bereich herum mittels elektromagnetischer Kopplung ausgehend von einer Speiseleitung (17) gespeist wird, dadurch gekennzeichnet, daß sie mehrere miteinander zusammengebaute leitende Teile geringer Dicke aufweist, zu denen ein Körper (16) enthält, der einen Hohlraum (24) bildet und der ein spanend bearbeitetes Metallteil ist, das die verschiedenen Funktionen der unteren Masseebene für den zentralen Bereich (15) des strahlenden Schlitzes und für die Speiseleitung (17) und einer mechanischen Haltestruktur für die ganze Vorrichtung ausübt, wobei der mittlere Bereich des strahlenden Schlitzes (25) ein leitendes Teil (15) ist, das im Hohlraum (24 angeordnet ist und in seiner Mitte von einer Stützsäule (18) getragen wird, die selbst vom Körper (16) gehalten wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Körper (16) auch als Schnittstelle mit einer Trägerstruktur für den ganzen strahlenden Schlitz (25) und als Träger für die elektrische Schnittstelle zwischen der Speiseleitung und diesem Schlitz (25) dient.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß sie einen auf den Körper (16) aufgesetzten leitenden Deckel (19) aufweist, um die obere Masseebene zu bilden, die die Ausbreitung in der Leitung (17) erlaubt, wobei diese Leitung (17) eine Leiterbahn ist, die von dielektrischen Zwischenstegen (20) in der Mitte zwischen den Masseebenen gehalten wird.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß sie ein Koaxialkabel (21) für die Speisung der Leitung (17) aufweist, dessen Innenleiter auf diese Leitung (17) gelötet oder geschweißt ist und dessen Außenleiter (23) direkt auf den Körper (16) geschweißt oder gelötet ist.
  5. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß sie ein Unternetz von vier identischen elementaren strahlenden Elementen aufweist, die als gemeinsame mechanische Einheit hergestellt sind, wobei eine Ausbreitungsleitung, die vier ringförmige Schlitze speist, einen Teilerbereich (25) durch vier zwischen den strahlenden Elementen enthält.
  6. Vorrichtung nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das leitende Teil (15) von mindestens einer weiteren schwingenden Vorrichtung (15') bedeckt ist, die ihre funkelektrischen Eigenschaften ändern soll.
  7. Vorrichtung nach einem beliebigen der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die leitenden Teile aus leichten Legierungen, aus Verbundmaterialien mit Metallmatrix oder jedem anderen isolierenden oder leitenden Material hergestellt sind, vorausgesetzt es ist metallisiert.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß die leitenden Teile miteinander durch Schweißen (Laser, Elektronenstrahl usw.) oder Löten oder mittels Schrauben verbunden sind.
EP92400247A 1991-02-01 1992-01-30 Strahlerstruktur einer ebenen Antenne Expired - Lifetime EP0497702B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101152 1991-02-01
FR9101152A FR2672437B1 (fr) 1991-02-01 1991-02-01 Dispositif rayonnant pour antenne plane.

Publications (2)

Publication Number Publication Date
EP0497702A1 EP0497702A1 (de) 1992-08-05
EP0497702B1 true EP0497702B1 (de) 1995-04-26

Family

ID=9409276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400247A Expired - Lifetime EP0497702B1 (de) 1991-02-01 1992-01-30 Strahlerstruktur einer ebenen Antenne

Country Status (6)

Country Link
US (1) US5465100A (de)
EP (1) EP0497702B1 (de)
JP (1) JPH04320101A (de)
DE (1) DE69202160T2 (de)
ES (1) ES2072717T3 (de)
FR (1) FR2672437B1 (de)

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KR100312364B1 (ko) * 1997-05-30 2001-12-28 가나이 쓰도무 동조형 슬롯안테나
US6160522A (en) * 1998-04-02 2000-12-12 L3 Communications Corporation, Randtron Antenna Systems Division Cavity-backed slot antenna
US6643989B1 (en) * 1999-02-23 2003-11-11 Renke Bienert Electric flush-mounted installation unit with an antenna
US6384788B2 (en) * 2000-04-07 2002-05-07 Omnipless (Proprietary) Limited Antenna with a stripline feed
EP1158604B1 (de) 2000-05-26 2006-07-19 Matsushita Electric Industrial Co., Ltd. Antenne, Antennenanordnung und Funkgerät
ATE279029T1 (de) * 2000-05-26 2004-10-15 Sony Int Europe Gmbh Doppel-spiralte schlitzantenne für zirkularpolarisation
ATE279795T1 (de) * 2000-07-13 2004-10-15 Thomson Licensing Sa Mehrband-planarantenne
AU2001282867A1 (en) * 2000-08-07 2002-02-18 Xtremespectrum, Inc. Electrically small planar uwb antenna apparatus and system thereof
EP1198028B1 (de) * 2000-10-13 2005-04-13 Matsushita Electric Industrial Co., Ltd. Flache drahtgespeiste Hohlraumschlitzantenne mit einem frequenz-selektiven Speisenetzwerk zur Anpassung auf zwei Resonanzfrequenzen
US6483464B2 (en) * 2000-10-31 2002-11-19 Harris Corporation Patch dipole array antenna including a feed line organizer body and related methods
FR2826512B1 (fr) * 2001-06-22 2003-08-29 Thomson Licensing Sa Antenne compacte a fente annulaire
US6583766B1 (en) * 2002-01-03 2003-06-24 Harris Corporation Suppression of mutual coupling in an array of planar antenna elements
US6731245B1 (en) * 2002-10-11 2004-05-04 Raytheon Company Compact conformal patch antenna
WO2005071789A1 (en) * 2004-01-26 2005-08-04 Agency For Science, Technology And Research Compact multi-tiered plate antenna arrays
US7595765B1 (en) * 2006-06-29 2009-09-29 Ball Aerospace & Technologies Corp. Embedded surface wave antenna with improved frequency bandwidth and radiation performance
EP2198479B1 (de) * 2007-10-11 2016-11-30 Raytheon Company Patchantenne
WO2009099427A1 (en) * 2008-02-04 2009-08-13 Agc Automotive Americas R & D, Inc. Multi-element cavity-coupled antenna
US8736502B1 (en) 2008-08-08 2014-05-27 Ball Aerospace & Technologies Corp. Conformal wide band surface wave radiating element
WO2010029125A1 (en) * 2008-09-12 2010-03-18 Advanced Automotive Antennas, S.L. Flush-mounted low-profile resonant hole antenna
US8159409B2 (en) * 2009-01-20 2012-04-17 Raytheon Company Integrated patch antenna
GB2497771A (en) 2011-12-19 2013-06-26 Aceaxis Ltd Patch antenna with an impedance matching transmission line feed arrangement
CN110400779B (zh) * 2018-04-25 2022-01-11 华为技术有限公司 封装结构
CN110086000A (zh) * 2019-05-15 2019-08-02 南京理工大学 一种宽带宽扫描角相控阵天线
EP3910735B1 (de) * 2020-05-11 2024-03-06 Nokia Solutions and Networks Oy Antennenanordnung

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US4242685A (en) * 1979-04-27 1980-12-30 Ball Corporation Slotted cavity antenna
US4761654A (en) * 1985-06-25 1988-08-02 Communications Satellite Corporation Electromagnetically coupled microstrip antennas having feeding patches capacitively coupled to feedlines
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JPS6350202A (ja) * 1986-08-20 1988-03-03 Matsushita Electric Works Ltd 平面アンテナ
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US4987421A (en) * 1988-06-09 1991-01-22 Mitsubishi Denki Kabushiki Kaisha Microstrip antenna
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Also Published As

Publication number Publication date
JPH04320101A (ja) 1992-11-10
FR2672437A1 (fr) 1992-08-07
ES2072717T3 (es) 1995-07-16
DE69202160T2 (de) 1995-08-31
DE69202160D1 (de) 1995-06-01
FR2672437B1 (fr) 1993-09-17
EP0497702A1 (de) 1992-08-05
US5465100A (en) 1995-11-07

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