DE3584958D1 - Antennensystem fuer zirkular polarisierte wellen. - Google Patents

Antennensystem fuer zirkular polarisierte wellen.

Info

Publication number
DE3584958D1
DE3584958D1 DE8585309418T DE3584958T DE3584958D1 DE 3584958 D1 DE3584958 D1 DE 3584958D1 DE 8585309418 T DE8585309418 T DE 8585309418T DE 3584958 T DE3584958 T DE 3584958T DE 3584958 D1 DE3584958 D1 DE 3584958D1
Authority
DE
Germany
Prior art keywords
polarized waves
circular polarized
aerial system
aerial
circular
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
DE8585309418T
Other languages
English (en)
Inventor
Tomozo Ohta
Kazutada Higashi
Hirohiko Yamamoto
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.)
Sharp Corp
Original Assignee
Sharp Corp
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
Priority claimed from JP27765784A external-priority patent/JPS61154205A/ja
Priority claimed from JP5280485A external-priority patent/JPS61212103A/ja
Application filed by Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE3584958D1 publication Critical patent/DE3584958D1/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
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual 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
    • H01Q19/13—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 being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/132—Horn reflector antennas; Off-set feeding
DE8585309418T 1984-12-26 1985-12-23 Antennensystem fuer zirkular polarisierte wellen. Expired - Lifetime DE3584958D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27765784A JPS61154205A (ja) 1984-12-26 1984-12-26 アンテナシステム
JP5280485A JPS61212103A (ja) 1985-03-15 1985-03-15 アンテナシステム

Publications (1)

Publication Number Publication Date
DE3584958D1 true DE3584958D1 (de) 1992-01-30

Family

ID=26393468

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585309418T Expired - Lifetime DE3584958D1 (de) 1984-12-26 1985-12-23 Antennensystem fuer zirkular polarisierte wellen.

Country Status (4)

Country Link
US (1) US4712111A (de)
EP (1) EP0186496B1 (de)
CA (1) CA1258707A (de)
DE (1) DE3584958D1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5136294A (en) * 1987-01-12 1992-08-04 Nec Corporation Multibeam antenna
FR2653941B1 (fr) * 1989-10-31 1992-02-28 Thomson Lgt Antenne de reception multifocale a direction de pointage unique pour plusieurs satellites.
GB9022688D0 (en) * 1990-10-18 1990-11-28 D Mac Improvements in or relating to satellite antennae
JP3473033B2 (ja) * 1992-11-11 2003-12-02 松下電器産業株式会社 衛星受信用マルチビームアンテナ
FR2725561B1 (fr) * 1994-10-10 1996-11-08 Thomson Consumer Electronics Systeme a antennes sources multiples integrees au convertisseur de frequence a faible bruit
US5805116A (en) * 1996-04-30 1998-09-08 Qualcomm Incorporated Two-feed full duplex transmitter/receiver for ultra small-aperture satellite communications terminal
DE19945062A1 (de) * 1999-09-20 2001-04-12 Daimler Chrysler Ag Reflektor mit geformter Oberfläche und räumlich getrennten Foki zur Ausleuchtung identischer Gebiete, Antennensystem und Verfahren zur Oberflächenermittlung
US6535176B2 (en) 2000-04-07 2003-03-18 Gilat Satellite Networks, Ltd. Multi-feed reflector antenna
US9634399B1 (en) * 2013-11-12 2017-04-25 L-3 Communications Corp. Antenna for transmitting partial orbital angular momentum beams
WO2016054324A1 (en) * 2014-10-02 2016-04-07 Viasat, Inc. Multi-beam bi-focal shaped reflector antenna for concurrent communication with multiple non-collocated geostationary satellites and associated method
CN107436978B (zh) * 2017-07-26 2020-10-02 西安电子科技大学 一种基于模块化拼接思想的抛物柱面网状可展开天线的设计方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600274A (en) * 1945-10-10 1952-06-10 Sichak William Antenna
FR1212148A (fr) * 1958-08-28 1960-03-22 Thomson Houston Comp Francaise Perfectionnements aux antennes pour ondes ultra-courtes
FR1214296A (fr) * 1958-10-29 1960-04-07 Thomson Houston Comp Francaise Nouvelle antenne pour ondes ultra-courtes
US2975419A (en) * 1959-10-13 1961-03-14 Newell H Brown Microwave antenna reflector system for scanning by displacement of focal image
DE1825829U (de) * 1960-06-09 1961-02-02 Telefunken Gmbh Richtantennenanordnung zur erzielung eines cosecans-diagramms grosser flankensteilheit.
FR1438482A (fr) * 1965-03-31 1966-05-13 Csf Antenne à double réflecteur sans ombre de source
JPS5028148B1 (de) * 1969-11-28 1975-09-12
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna
GB1525514A (en) * 1975-10-29 1978-09-20 Rudge A Primary feeds for offset parabolic reflector antennas
US4109253A (en) * 1977-02-22 1978-08-22 Bell Telephone Laboratories, Incorporated Method and apparatus for substantially reducing cross polarized radiation in offset reflector antennas
US4544928A (en) * 1980-07-16 1985-10-01 General Electric Company Multifrequency reflector antenna
US4482897A (en) * 1982-06-28 1984-11-13 At&T Bell Laboratories Multibeam segmented reflector antennas
US4491848A (en) * 1982-08-30 1985-01-01 At&T Bell Laboratories Substantially frequency-independent aberration correcting antenna arrangement
JPS5991708A (ja) * 1982-11-17 1984-05-26 Mitsubishi Electric Corp アンテナ装置

Also Published As

Publication number Publication date
EP0186496B1 (de) 1991-12-18
US4712111A (en) 1987-12-08
EP0186496A2 (de) 1986-07-02
EP0186496A3 (en) 1987-08-19
CA1258707A (en) 1989-08-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee