DE69315707T2 - Wendelantennensystem - Google Patents

Wendelantennensystem

Info

Publication number
DE69315707T2
DE69315707T2 DE69315707T DE69315707T DE69315707T2 DE 69315707 T2 DE69315707 T2 DE 69315707T2 DE 69315707 T DE69315707 T DE 69315707T DE 69315707 T DE69315707 T DE 69315707T DE 69315707 T2 DE69315707 T2 DE 69315707T2
Authority
DE
Germany
Prior art keywords
antenna system
cooling antenna
cooling
antenna
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
DE69315707T
Other languages
English (en)
Other versions
DE69315707D1 (de
Inventor
Ali Louzir
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.)
Technicolor SA
Original Assignee
Thomson Multimedia 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 Thomson Multimedia SA filed Critical Thomson Multimedia SA
Publication of DE69315707D1 publication Critical patent/DE69315707D1/de
Application granted granted Critical
Publication of DE69315707T2 publication Critical patent/DE69315707T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
    • 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
    • H01Q21/067—Two dimensional planar arrays using endfire radiating aerial units transverse to the plane of the array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
DE69315707T 1992-12-30 1993-12-30 Wendelantennensystem Expired - Lifetime DE69315707T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP92403593 1992-12-30
PCT/EP1993/003726 WO1994016472A1 (en) 1992-12-30 1993-12-30 Helical antenna system

Publications (2)

Publication Number Publication Date
DE69315707D1 DE69315707D1 (de) 1998-01-22
DE69315707T2 true DE69315707T2 (de) 1998-04-02

Family

ID=8211740

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69315707T Expired - Lifetime DE69315707T2 (de) 1992-12-30 1993-12-30 Wendelantennensystem

Country Status (6)

Country Link
EP (1) EP0677212B1 (de)
JP (1) JP3334134B2 (de)
KR (1) KR100300937B1 (de)
DE (1) DE69315707T2 (de)
ES (1) ES2111903T3 (de)
WO (1) WO1994016472A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2157139A1 (en) * 1994-09-01 1996-03-02 Thomas C. Weakley Multiple beam antenna system for simultaneously receiving multiple satellite signals
US6121939A (en) 1996-11-15 2000-09-19 Yagi Antenna Co., Ltd. Multibeam antenna
US6107897A (en) * 1998-01-08 2000-08-22 E*Star, Inc. Orthogonal mode junction (OMJ) for use in antenna system
US6160520A (en) * 1998-01-08 2000-12-12 E★Star, Inc. Distributed bifocal abbe-sine for wide-angle multi-beam and scanning antenna system
KR20110006953A (ko) * 2009-07-15 2011-01-21 위월드 주식회사 역중앙 급전방식의 헬릭스 급전 광대역 안테나

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1570700A (de) * 1968-04-24 1969-06-13
JPS5945283B2 (ja) * 1977-09-01 1984-11-05 三菱電機株式会社 パラボラアンテナ
JPS6437107A (en) * 1987-07-31 1989-02-07 Sharp Kk Antenna system
FR2653941B1 (fr) * 1989-10-31 1992-02-28 Thomson Lgt Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites.
JPH1037107A (ja) * 1996-07-22 1998-02-10 Kensetsu Kiso Eng Co Ltd 吊り道路

Also Published As

Publication number Publication date
WO1994016472A1 (en) 1994-07-21
ES2111903T3 (es) 1998-03-16
JP3334134B2 (ja) 2002-10-15
DE69315707D1 (de) 1998-01-22
KR960700537A (ko) 1996-01-20
EP0677212B1 (de) 1997-12-10
KR100300937B1 (ko) 2001-10-22
JPH08506701A (ja) 1996-07-16
EP0677212A1 (de) 1995-10-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)