GB2343789B - Scanning of electromagnetic beams - Google Patents

Scanning of electromagnetic beams

Info

Publication number
GB2343789B
GB2343789B GB9915359A GB9915359A GB2343789B GB 2343789 B GB2343789 B GB 2343789B GB 9915359 A GB9915359 A GB 9915359A GB 9915359 A GB9915359 A GB 9915359A GB 2343789 B GB2343789 B GB 2343789B
Authority
GB
United Kingdom
Prior art keywords
scanning
electromagnetic beams
beams
electromagnetic
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 - Fee Related
Application number
GB9915359A
Other versions
GB9915359D0 (en
GB2343789A (en
Inventor
Balbir Kumar
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 Integrated System Technologies Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconi Electronic Systems Ltd
Alenia Marconi Systems Ltd
BAE Systems Electronics 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 Systems Ltd, Alenia Marconi Systems Ltd, BAE Systems Electronics Ltd filed Critical Marconi Electronic Systems Ltd
Publication of GB9915359D0 publication Critical patent/GB9915359D0/en
Priority to AU10654/00A priority Critical patent/AU1065400A/en
Priority to EP99954242A priority patent/EP1131856A1/en
Priority to PCT/GB1999/003782 priority patent/WO2000030212A1/en
Publication of GB2343789A publication Critical patent/GB2343789A/en
Application granted granted Critical
Publication of GB2343789B publication Critical patent/GB2343789B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01Q19/104—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 using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
    • 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
    • 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
    • H01Q3/02—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole
    • H01Q3/04—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical movement of antenna or antenna system as a whole for varying one co-ordinate of the orientation
    • 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
    • H01Q3/44—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 electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
GB9915359A 1998-11-12 1999-07-02 Scanning of electromagnetic beams Expired - Fee Related GB2343789B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU10654/00A AU1065400A (en) 1998-11-12 1999-11-12 Scanning of electromagnetic beams
EP99954242A EP1131856A1 (en) 1998-11-12 1999-11-12 Scanning of electromagnetic beams
PCT/GB1999/003782 WO2000030212A1 (en) 1998-11-12 1999-11-12 Scanning of electromagnetic beams

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9824800.8A GB9824800D0 (en) 1998-11-12 1998-11-12 Scanning of electromagnetic beams

Publications (3)

Publication Number Publication Date
GB9915359D0 GB9915359D0 (en) 1999-09-01
GB2343789A GB2343789A (en) 2000-05-17
GB2343789B true GB2343789B (en) 2004-01-28

Family

ID=10842324

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9824800.8A Ceased GB9824800D0 (en) 1998-11-12 1998-11-12 Scanning of electromagnetic beams
GB9915359A Expired - Fee Related GB2343789B (en) 1998-11-12 1999-07-02 Scanning of electromagnetic beams

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9824800.8A Ceased GB9824800D0 (en) 1998-11-12 1998-11-12 Scanning of electromagnetic beams

Country Status (1)

Country Link
GB (2) GB9824800D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0115549D0 (en) 2001-06-26 2007-06-20 Crane Nuclear Inc Dual-feed antenna

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939142A (en) * 1958-07-23 1960-05-31 George L Fernsler Bending microwaves by means of a magnetic or electric field
US3013266A (en) * 1957-04-18 1961-12-12 Westinghouse Electric Corp Beam steering apparatus employing ferrites
US4111564A (en) * 1973-02-08 1978-09-05 Trice Jr James R Reference plane production
US4338607A (en) * 1978-12-22 1982-07-06 Thomson-Csf Conical scan antenna for tracking radar
US4740791A (en) * 1983-07-08 1988-04-26 Thomson-Csf Antenna with pseudo-toric coverage having two reflectors
GB2250135A (en) * 1990-10-30 1992-05-27 Glasnost International Plc Antenna feed arrangements
GB2280787A (en) * 1986-10-25 1995-02-08 Stc Plc Radar antenna

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013266A (en) * 1957-04-18 1961-12-12 Westinghouse Electric Corp Beam steering apparatus employing ferrites
US2939142A (en) * 1958-07-23 1960-05-31 George L Fernsler Bending microwaves by means of a magnetic or electric field
US4111564A (en) * 1973-02-08 1978-09-05 Trice Jr James R Reference plane production
US4338607A (en) * 1978-12-22 1982-07-06 Thomson-Csf Conical scan antenna for tracking radar
US4740791A (en) * 1983-07-08 1988-04-26 Thomson-Csf Antenna with pseudo-toric coverage having two reflectors
GB2280787A (en) * 1986-10-25 1995-02-08 Stc Plc Radar antenna
GB2250135A (en) * 1990-10-30 1992-05-27 Glasnost International Plc Antenna feed arrangements

Also Published As

Publication number Publication date
GB9915359D0 (en) 1999-09-01
GB9824800D0 (en) 1999-01-06
GB2343789A (en) 2000-05-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130702