GB9107121D0 - Antenna arrangements - Google Patents

Antenna arrangements

Info

Publication number
GB9107121D0
GB9107121D0 GB919107121A GB9107121A GB9107121D0 GB 9107121 D0 GB9107121 D0 GB 9107121D0 GB 919107121 A GB919107121 A GB 919107121A GB 9107121 A GB9107121 A GB 9107121A GB 9107121 D0 GB9107121 D0 GB 9107121D0
Authority
GB
United Kingdom
Prior art keywords
antenna arrangements
arrangements
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.)
Withdrawn
Application number
GB919107121A
Other versions
GB2245103A (en
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.)
Marconi Electronic Devices Ltd
Original Assignee
Marconi Electronic Devices 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 Electronic Devices Ltd filed Critical Marconi Electronic Devices Ltd
Publication of GB9107121D0 publication Critical patent/GB9107121D0/en
Publication of GB2245103A publication Critical patent/GB2245103A/en
Withdrawn legal-status Critical Current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
    • H01Q19/193—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 feed supported subreflector
GB9107121A 1990-04-09 1991-04-05 Antenna with reflectors supported by a waveguide Withdrawn GB2245103A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909007976A GB9007976D0 (en) 1990-04-09 1990-04-09 Antenna arrangement

Publications (2)

Publication Number Publication Date
GB9107121D0 true GB9107121D0 (en) 1991-05-22
GB2245103A GB2245103A (en) 1991-12-18

Family

ID=10674127

Family Applications (2)

Application Number Title Priority Date Filing Date
GB909007976A Pending GB9007976D0 (en) 1990-04-09 1990-04-09 Antenna arrangement
GB9107121A Withdrawn GB2245103A (en) 1990-04-09 1991-04-05 Antenna with reflectors supported by a waveguide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB909007976A Pending GB9007976D0 (en) 1990-04-09 1990-04-09 Antenna arrangement

Country Status (4)

Country Link
EP (1) EP0452077A1 (en)
JP (1) JPH04506740A (en)
GB (2) GB9007976D0 (en)
WO (1) WO1991015880A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6469158B1 (en) * 1992-05-14 2002-10-22 Ribozyme Pharmaceuticals, Incorporated Synthesis, deprotection, analysis and purification of RNA and ribozymes
US5686599A (en) * 1992-05-14 1997-11-11 Ribozyme Pharmaceuticals, Inc. Synthesis, deprotection, analysis and purification of RNA and ribozymes
US5804683A (en) * 1992-05-14 1998-09-08 Ribozyme Pharmaceuticals, Inc. Deprotection of RNA with alkylamine
US5977343A (en) 1992-05-14 1999-11-02 Ribozyme Pharmaceuticals, Inc. Synthesis, deprotection, analysis and purification of RNA and ribozymes
CN101841082A (en) * 2010-05-19 2010-09-22 广东通宇通讯设备有限公司 Feed source for microwave antenna and microwave antenna
TWI419407B (en) * 2010-06-21 2013-12-11 Wistron Neweb Corp Low noise block down-converter with integrated feed
US10418712B1 (en) * 2018-11-05 2019-09-17 Eagle Technology, Llc Folded optics mesh hoop column deployable reflector system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB664391A (en) * 1942-10-17
GB606926A (en) * 1945-01-24 1948-08-23 Western Electric Co Improvements in directive antenna systems
BE466752A (en) * 1945-07-21
DE2329555A1 (en) * 1973-06-09 1974-12-19 Philips Patentverwaltung HIGH-PASS FILTER FOR THE GHZ RANGE
US4306235A (en) * 1978-11-02 1981-12-15 Cbc Corporation Multiple frequency microwave antenna
MX148406A (en) * 1980-07-28 1983-04-18 Robert Anthony Luly IMPROVEMENTS IN SATELLITE ANTENNA
DE3231097A1 (en) * 1982-08-20 1984-02-23 Siemens AG, 1000 Berlin und 8000 München Antenna in accordance with the Cassegrain principle, having a holder for the subreflector
EP0170726A1 (en) * 1984-07-13 1986-02-12 Siemens Aktiengesellschaft Dual reflector directional antenna
GB2182240B (en) * 1985-11-01 1989-10-25 Racal Antennas Limited Portable supports such as for radio antennas
NO864563L (en) * 1986-06-03 1987-12-04 Sintef REFLECTOR ANTENNA WITH SELF-SUSTAINABLE MEASUREMENT ELEMENT.
EP0304722B1 (en) * 1987-08-12 1992-10-28 Siemens Aktiengesellschaft Directional antenna for relay systems
JPH0642610B2 (en) * 1988-02-19 1994-06-01 工業技術院長 Structure of primary radiator

Also Published As

Publication number Publication date
WO1991015880A1 (en) 1991-10-17
GB2245103A (en) 1991-12-18
EP0452077A1 (en) 1991-10-16
JPH04506740A (en) 1992-11-19
GB9007976D0 (en) 1990-06-06

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)