EP0080319A1 - Antennenzusammenstellungen - Google Patents

Antennenzusammenstellungen Download PDF

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Publication number
EP0080319A1
EP0080319A1 EP82306095A EP82306095A EP0080319A1 EP 0080319 A1 EP0080319 A1 EP 0080319A1 EP 82306095 A EP82306095 A EP 82306095A EP 82306095 A EP82306095 A EP 82306095A EP 0080319 A1 EP0080319 A1 EP 0080319A1
Authority
EP
European Patent Office
Prior art keywords
antenna
reflector
radiation
cassegrain
assembly
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.)
Withdrawn
Application number
EP82306095A
Other languages
English (en)
French (fr)
Inventor
George Alan Hurd
James Matthew John Whellens
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of EP0080319A1 publication Critical patent/EP0080319A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01Q19/195—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 wherein a reflecting surface acts also as a polarisation filter or a polarising device
    • 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
EP82306095A 1981-11-19 1982-11-16 Antennenzusammenstellungen Withdrawn EP0080319A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8134828 1981-11-19
GB08134828A GB2110003B (en) 1981-11-19 1981-11-19 Antenna assemblies

Publications (1)

Publication Number Publication Date
EP0080319A1 true EP0080319A1 (de) 1983-06-01

Family

ID=10525985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306095A Withdrawn EP0080319A1 (de) 1981-11-19 1982-11-16 Antennenzusammenstellungen

Country Status (2)

Country Link
EP (1) EP0080319A1 (de)
GB (1) GB2110003B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049750A1 (en) * 1997-04-29 1998-11-05 Era Patents Limited Twist reflector antenna
WO2000028622A1 (en) * 1998-11-12 2000-05-18 Raytheon Company Electronically scanned cassegrain antenna with full aperture subreflector/radome

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769646A (en) * 1984-02-27 1988-09-06 United Technologies Corporation Antenna system and dual-fed lenses producing characteristically different beams
GB8628553D0 (en) * 1986-11-28 2004-11-10 Marconi Co Ltd Radar system

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582007C (de) * 1933-08-07 Ernst Gerhard Dr Anordnung zur Aussendung von mehreren voneinander unabhaengigen und verschiedenen Strahlenkegeln elektrischer Wellen
GB758957A (en) * 1954-03-23 1956-10-10 British Thomson Houston Co Ltd Improvements relating to ultra-high frequency aerials
FR1214296A (fr) * 1958-10-29 1960-04-07 Thomson Houston Comp Francaise Nouvelle antenne pour ondes ultra-courtes
US2990544A (en) * 1957-04-30 1961-06-27 Hazeltine Research Inc Radar antenna system providing improved resolution
US3049708A (en) * 1959-11-20 1962-08-14 Sperry Rand Corp Polarization sensitive antenna system
US3271771A (en) * 1962-02-15 1966-09-06 Hazeltine Research Inc Double-reflector, double-feed antenna for crossed polarizations and polarization changing devices useful therein
GB1048354A (en) * 1964-03-09 1966-11-16 Csf Frequency changer system for multiple channel receivers
US3820116A (en) * 1972-04-24 1974-06-25 Ericsson Telefon Ab L M Double reflector antenna with polarization rotating main reflector
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582007C (de) * 1933-08-07 Ernst Gerhard Dr Anordnung zur Aussendung von mehreren voneinander unabhaengigen und verschiedenen Strahlenkegeln elektrischer Wellen
GB758957A (en) * 1954-03-23 1956-10-10 British Thomson Houston Co Ltd Improvements relating to ultra-high frequency aerials
US2990544A (en) * 1957-04-30 1961-06-27 Hazeltine Research Inc Radar antenna system providing improved resolution
FR1214296A (fr) * 1958-10-29 1960-04-07 Thomson Houston Comp Francaise Nouvelle antenne pour ondes ultra-courtes
US3049708A (en) * 1959-11-20 1962-08-14 Sperry Rand Corp Polarization sensitive antenna system
US3271771A (en) * 1962-02-15 1966-09-06 Hazeltine Research Inc Double-reflector, double-feed antenna for crossed polarizations and polarization changing devices useful therein
GB1048354A (en) * 1964-03-09 1966-11-16 Csf Frequency changer system for multiple channel receivers
US3820116A (en) * 1972-04-24 1974-06-25 Ericsson Telefon Ab L M Double reflector antenna with polarization rotating main reflector
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049750A1 (en) * 1997-04-29 1998-11-05 Era Patents Limited Twist reflector antenna
WO2000028622A1 (en) * 1998-11-12 2000-05-18 Raytheon Company Electronically scanned cassegrain antenna with full aperture subreflector/radome
US6150991A (en) * 1998-11-12 2000-11-21 Raytheon Company Electronically scanned cassegrain antenna with full aperture secondary/radome

Also Published As

Publication number Publication date
GB2110003A (en) 1983-06-08
GB2110003B (en) 1985-03-13

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR IT LI LU NL SE

17P Request for examination filed

Effective date: 19830425

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840719

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HURD, GEORGE ALAN

Inventor name: WHELLENS, JAMES MATTHEW JOHN