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GB2110003B - Antenna assemblies - Google Patents

Antenna assemblies

Info

Publication number
GB2110003B
GB2110003B GB08134828A GB8134828A GB2110003B GB 2110003 B GB2110003 B GB 2110003B GB 08134828 A GB08134828 A GB 08134828A GB 8134828 A GB8134828 A GB 8134828A GB 2110003 B GB2110003 B GB 2110003B
Authority
GB
United Kingdom
Prior art keywords
antenna assemblies
assemblies
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
Application number
GB08134828A
Other versions
GB2110003A (en
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
Priority to GB08134828A priority Critical patent/GB2110003B/en
Priority to EP82306095A priority patent/EP0080319A1/en
Publication of GB2110003A publication Critical patent/GB2110003A/en
Application granted granted Critical
Publication of GB2110003B publication Critical patent/GB2110003B/en
Expired legal-status Critical Current

Links

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
GB08134828A 1981-11-19 1981-11-19 Antenna assemblies Expired GB2110003B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08134828A GB2110003B (en) 1981-11-19 1981-11-19 Antenna assemblies
EP82306095A EP0080319A1 (en) 1981-11-19 1982-11-16 Antenna assemblies

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
GB2110003A GB2110003A (en) 1983-06-08
GB2110003B true GB2110003B (en) 1985-03-13

Family

ID=10525985

Family Applications (1)

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

Country Status (2)

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

Families Citing this family (4)

* 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
GB9708758D0 (en) * 1997-04-29 1997-06-25 Era Patents Ltd Antenna
US6150991A (en) * 1998-11-12 2000-11-21 Raytheon Company Electronically scanned cassegrain antenna with full aperture secondary/radome

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE582007C (en) * 1933-08-07 Ernst Gerhard Dr Arrangement for the emission of several independent and different beam cones of electrical waves
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 (en) * 1958-10-29 1960-04-07 Thomson Houston Comp Francaise New antenna for ultra-short waves
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
FR1396404A (en) * 1964-03-09 1965-04-23 Csf New frequency change system for multi-channel receiver
SE356641B (en) * 1972-04-24 1973-05-28 Ericsson Telefon Ab L M
US3898667A (en) * 1974-02-06 1975-08-05 Rca Corp Compact frequency reuse antenna

Also Published As

Publication number Publication date
GB2110003A (en) 1983-06-08
EP0080319A1 (en) 1983-06-01

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee