GB2189650B - Steerable beam transmitters - Google Patents

Steerable beam transmitters

Info

Publication number
GB2189650B
GB2189650B GB08309890A GB8309890A GB2189650B GB 2189650 B GB2189650 B GB 2189650B GB 08309890 A GB08309890 A GB 08309890A GB 8309890 A GB8309890 A GB 8309890A GB 2189650 B GB2189650 B GB 2189650B
Authority
GB
United Kingdom
Prior art keywords
steerable beam
beam transmitters
transmitters
steerable
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
GB08309890A
Other versions
GB8309890D0 (en
GB2189650A (en
Inventor
John Richard Wallington
Anthony David Monk
John Richard Mark
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB08309890A priority Critical patent/GB2189650B/en
Priority to FR8417968A priority patent/FR2717312A1/en
Priority to IT8567020A priority patent/IT8567020A0/en
Publication of GB8309890D0 publication Critical patent/GB8309890D0/en
Publication of GB2189650A publication Critical patent/GB2189650A/en
Application granted granted Critical
Publication of GB2189650B publication Critical patent/GB2189650B/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
    • H01Q19/12—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
    • H01Q19/17—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 comprising two or more radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/002—Protection against seismic waves, thermal radiation or other disturbances, e.g. nuclear explosion; Arrangements for improving the power handling capability of an antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2658—Phased-array fed focussing structure
GB08309890A 1983-04-13 1983-04-13 Steerable beam transmitters Expired GB2189650B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB08309890A GB2189650B (en) 1983-04-13 1983-04-13 Steerable beam transmitters
FR8417968A FR2717312A1 (en) 1983-04-13 1984-11-23 Directional directional transmitter.
IT8567020A IT8567020A0 (en) 1983-04-13 1985-01-10 IMPROVEMENTS IN OR RELATING TO ADJUSTABLE BEAM TRANSMITTERS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08309890A GB2189650B (en) 1983-04-13 1983-04-13 Steerable beam transmitters

Publications (3)

Publication Number Publication Date
GB8309890D0 GB8309890D0 (en) 1987-10-21
GB2189650A GB2189650A (en) 1987-10-28
GB2189650B true GB2189650B (en) 1988-04-20

Family

ID=10540984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08309890A Expired GB2189650B (en) 1983-04-13 1983-04-13 Steerable beam transmitters

Country Status (3)

Country Link
FR (1) FR2717312A1 (en)
GB (1) GB2189650B (en)
IT (1) IT8567020A0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5247843A (en) * 1990-09-19 1993-09-28 Scientific-Atlanta, Inc. Apparatus and methods for simulating electromagnetic environments
JPH09191213A (en) * 1995-11-07 1997-07-22 Denso Corp Opening surface antenna
US6246369B1 (en) * 1999-09-14 2001-06-12 Navsys Corporation Miniature phased array antenna system
EP2360785A1 (en) * 2010-02-15 2011-08-24 BAE SYSTEMS plc Antenna system
AU2011214118B2 (en) * 2010-02-15 2014-12-11 Bae Systems Plc Antenna system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3775769A (en) * 1971-10-04 1973-11-27 Raytheon Co Phased array system
US4259674A (en) * 1979-10-24 1981-03-31 Bell Laboratories Phased array antenna arrangement with filtering to reduce grating lobes

Also Published As

Publication number Publication date
FR2717312A1 (en) 1995-09-15
GB8309890D0 (en) 1987-10-21
IT8567020A0 (en) 1985-01-10
GB2189650A (en) 1987-10-28

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Legal Events

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