SE7500631L - - Google Patents

Info

Publication number
SE7500631L
SE7500631L SE7500631A SE7500631A SE7500631L SE 7500631 L SE7500631 L SE 7500631L SE 7500631 A SE7500631 A SE 7500631A SE 7500631 A SE7500631 A SE 7500631A SE 7500631 L SE7500631 L SE 7500631L
Authority
SE
Sweden
Prior art keywords
subreflector
antenna
well
beams
aperture
Prior art date
Application number
SE7500631A
Other languages
Unknown language ( )
Other versions
SE405528B (en
Inventor
E A Ohm
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of SE7500631L publication Critical patent/SE7500631L/
Publication of SE405528B publication Critical patent/SE405528B/en

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
    • 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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/192—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface with dual offset reflectors

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A multiple-beam Cassegrainian antenna configuration is disclosed which supports a plurality of angularly displaced but well-isolated beams and exhibits essentially zero aperture blockage. A plurality of feed horns are clustered about the on-axis focal point of an offset Cassegrainian antenna in which the subreflector is displaced from the aperture to avoid blockage. This subreflector is sized and shaped to accommodate the plurality of beams, and the feeds are individually aimed toward the subreflector so that all of the beam centers impinge upon the common effective center of the main reflector. The antenna is well-suited for earth stations and satellites.
SE7500631A 1974-01-31 1975-01-21 MULTILOBIG CASSEGRAIN ANTENNA SE405528B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US438201*A US3914768A (en) 1974-01-31 1974-01-31 Multiple-beam Cassegrainian antenna

Publications (2)

Publication Number Publication Date
SE7500631L true SE7500631L (en) 1975-08-01
SE405528B SE405528B (en) 1978-12-11

Family

ID=23739668

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7500631A SE405528B (en) 1974-01-31 1975-01-21 MULTILOBIG CASSEGRAIN ANTENNA

Country Status (9)

Country Link
US (1) US3914768A (en)
JP (1) JPS5821850B2 (en)
BE (1) BE824830A (en)
CA (1) CA994470A (en)
DE (1) DE2503594A1 (en)
FR (1) FR2260196B1 (en)
GB (1) GB1496032A (en)
NL (1) NL183556C (en)
SE (1) SE405528B (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236161A (en) * 1978-09-18 1980-11-25 Bell Telephone Laboratories, Incorporated Array feed for offset satellite antenna
US4298877A (en) * 1979-01-26 1981-11-03 Solar Energy Technology, Inc. Offset-fed multi-beam tracking antenna system utilizing especially shaped reflector surfaces
US4282527A (en) * 1979-06-11 1981-08-04 General Dynamics, Pomona Division Multi-spectral detection system with common collecting means
FR2472853A1 (en) * 1979-12-27 1981-07-03 Thomson Csf ANTENNA WITH AN ADJUSTABLE BEAM AND SATELLITE COMPRISING SUCH ANTENNA
JPS5698905A (en) * 1980-01-11 1981-08-08 Kokusai Denshin Denwa Co Ltd <Kdd> Dual reflecting mirror antenna
US4355314A (en) * 1980-11-28 1982-10-19 Bell Telephone Laboratories, Incorporated Wide-field-of-view antenna arrangement
US4343000A (en) * 1981-04-06 1982-08-03 The United States Of America As Represented By The Secretary Of The Navy Aircraft self-protection radar
US4479129A (en) * 1981-09-10 1984-10-23 George Skahill Directive antenna system employing a paraboloidal main dish and ellipsoidal subdish
US4415901A (en) * 1981-09-21 1983-11-15 Bell Telephone Laboratories, Incorporated Low power beam switchable antenna arrangement
US4407001A (en) * 1981-10-02 1983-09-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Focal axis resolver for offset reflector antennas
DE3204029A1 (en) * 1982-02-05 1983-08-11 Messerschmitt-Bölkow-Blohm GmbH, 8000 München MULTI-REFLECTOR ANTENNA
US4482897A (en) * 1982-06-28 1984-11-13 At&T Bell Laboratories Multibeam segmented reflector antennas
JPS5991708A (en) * 1982-11-17 1984-05-26 Mitsubishi Electric Corp Antenna device
US4535476A (en) * 1982-12-01 1985-08-13 At&T Bell Laboratories Offset geometry, interference canceling receiver
DE3516811A1 (en) * 1985-05-10 1986-11-13 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn GEOSTATIONAL NEWS SATELLITE
FR2608846B1 (en) * 1986-12-18 1989-03-24 Alcatel Thomson Faisceaux TELECOMMUNICATIONS ANTENNA WITH REFLECTOR
US4866454A (en) * 1987-03-04 1989-09-12 Droessler Justin G Multi-spectral imaging system
JPS63147013U (en) * 1987-03-19 1988-09-28
DE3820920A1 (en) * 1988-03-31 1989-11-16 Franz Eisenhofer Antenna arrangement
US5202700A (en) * 1988-11-03 1993-04-13 Westinghouse Electric Corp. Array fed reflector antenna for transmitting & receiving multiple beams
GB2227609A (en) * 1989-01-30 1990-08-01 David James George Martin Double aerial [daerial]
ES1008936Y (en) * 1989-01-31 1989-12-16 Televes S.A. SUPPORT FOR MULTISATELLITE PARABOLIC ANTENNA FEEDERS.
US5175562A (en) * 1989-06-23 1992-12-29 Northeastern University High aperture-efficient, wide-angle scanning offset reflector antenna
DE4112837A1 (en) * 1991-04-19 1992-10-22 Teldix Gmbh Aerial reflector swivel mechanism - has reflector fitted at free end of jib arm, rotatably mounted by its opposite end between two spaced, lever arms
JP2882183B2 (en) * 1992-04-24 1999-04-12 ケイディディ株式会社 Antenna device
DE4311111A1 (en) * 1993-04-05 1994-12-01 Media Tech Vertriebs Gmbh Antenna system having a main reflector and a subreflector
FR2713404B1 (en) * 1993-12-02 1996-01-05 Alcatel Espace Oriental antenna with conservation of polarization axes.
US5563609A (en) * 1994-05-16 1996-10-08 Hughes Electronics Antenna system with plural beam sequential offset
FR2765404B1 (en) 1997-06-26 1999-09-24 Alsthom Cge Alcatel ANTENNA WITH HIGH SCANNING CAPACITY
CA2345047A1 (en) * 1998-05-20 1999-11-25 Apostle G. Cardiasmenos Multibeam satellite communication antenna
US7286096B2 (en) * 2005-03-28 2007-10-23 Radiolink Networks, Inc. Aligned duplex antennae with high isolation
EP2491615B1 (en) * 2009-10-22 2015-12-23 Lockheed Martin Corporation Metamaterial lens feed for multiple beam antennas
US9774095B1 (en) 2011-09-22 2017-09-26 Space Systems/Loral, Llc Antenna system with multiple independently steerable shaped beams
RU2012111441A (en) 2012-03-26 2013-10-10 Джи-хо Ан COMPACT NON-AXISYMMETRIC TWO-MIRROR ANTENNA
CN102749007B (en) * 2012-07-16 2014-12-24 中国核动力研究设计院 Gauge and method for measuring size of transformation position of minor-diameter deep hole
US9806428B2 (en) 2013-06-16 2017-10-31 Siklu Communication ltd. Systems and methods for forming, directing, and narrowing communication beams
US9413078B2 (en) 2013-06-16 2016-08-09 Siklu Communication ltd. Millimeter-wave system with beam direction by switching sources
US9929474B2 (en) * 2015-07-02 2018-03-27 Sea Tel, Inc. Multiple-feed antenna system having multi-position subreflector assembly
KR101757681B1 (en) * 2016-04-12 2017-07-26 (주)인텔리안테크놀로지스 Satellite communication antenna capable of receiving multi band signal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1368820A (en) * 1963-06-14 1964-08-07 Csf High performance aerial
NL6818798A (en) * 1968-01-02 1973-08-27
FR2153164B1 (en) * 1971-09-22 1976-10-29 Thomson Csf

Also Published As

Publication number Publication date
SE405528B (en) 1978-12-11
JPS5821850B2 (en) 1983-05-04
US3914768A (en) 1975-10-21
DE2503594A1 (en) 1975-08-07
CA994470A (en) 1976-08-03
FR2260196A1 (en) 1975-08-29
AU7768575A (en) 1976-07-29
GB1496032A (en) 1977-12-21
NL183556C (en) 1988-11-16
BE824830A (en) 1975-05-15
DE2503594C2 (en) 1988-04-14
FR2260196B1 (en) 1980-01-04
NL183556B (en) 1988-06-16
NL7501099A (en) 1975-08-04
JPS50110253A (en) 1975-08-30

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