GB2155245B - Antenna systems - Google Patents

Antenna systems

Info

Publication number
GB2155245B
GB2155245B GB08405291A GB8405291A GB2155245B GB 2155245 B GB2155245 B GB 2155245B GB 08405291 A GB08405291 A GB 08405291A GB 8405291 A GB8405291 A GB 8405291A GB 2155245 B GB2155245 B GB 2155245B
Authority
GB
United Kingdom
Prior art keywords
antenna systems
antenna
systems
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
GB08405291A
Other versions
GB2155245A (en
Inventor
William David Waddoup
Andrew Peter Norris
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB08405291A priority Critical patent/GB2155245B/en
Publication of GB2155245A publication Critical patent/GB2155245A/en
Application granted granted Critical
Publication of GB2155245B publication Critical patent/GB2155245B/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/02—Waveguide horns
    • H01Q13/04—Biconical horns
    • 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
    • H01Q19/102—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 of convex toroïdal shape
GB08405291A 1984-02-29 1984-02-29 Antenna systems Expired GB2155245B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08405291A GB2155245B (en) 1984-02-29 1984-02-29 Antenna systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08405291A GB2155245B (en) 1984-02-29 1984-02-29 Antenna systems

Publications (2)

Publication Number Publication Date
GB2155245A GB2155245A (en) 1985-09-18
GB2155245B true GB2155245B (en) 1987-07-29

Family

ID=10557363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08405291A Expired GB2155245B (en) 1984-02-29 1984-02-29 Antenna systems

Country Status (1)

Country Link
GB (1) GB2155245B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643720B1 (en) * 1989-02-27 1991-05-10 Alcatel Espace DEVICE FOR TESTING A RADIUS MICROWAVE POWER SOURCE
DE4002058A1 (en) * 1990-01-25 1991-08-01 Telefunken Systemtechnik Conical microwave range antenna - has reflector directing emission through cylinder dome for circular polar diagram
US5486838A (en) * 1993-08-23 1996-01-23 Andrew Corporation Broadband omnidirectional microwave antenna for minimizing radiation toward the upper hemisphere
US6094174A (en) * 1996-03-04 2000-07-25 Andrew Corporation Broadband omnidirectional microwave parabolic dish--shaped cone antenna
CA2198969A1 (en) * 1996-03-04 1997-09-04 Andrew Corporation Broadband omnidirectional microwave antenna with decreased sky radiation and with a simple means of elevation-plane pattern control
DE69834968T2 (en) * 1997-02-14 2006-11-16 Andrew Ag, Bachenbulach Dual reflector microwave antenna
KR20180121372A (en) 2017-04-28 2018-11-07 엘에스엠트론 주식회사 Antenna device for vehicle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577939A (en) * 1941-06-06 1946-06-06 Harry Melville Dowsett Improvements in the directive propagation of electro-magnetic waves
GB627689A (en) * 1942-05-04 1949-08-15 Marconi Wireless Telegraph Co Wireless antenna
GB578018A (en) * 1943-04-08 1946-06-12 Dennis Illingworth Lawson Improvements in or relating to broadcast antennae and especially antennae for centimetre waves
GB805478A (en) * 1956-04-06 1958-12-10 Standard Telephones Cables Ltd Omnidirectional antenna
CH557544A (en) * 1972-10-17 1974-12-31 Siemens Ag Albis RADAR DEVICE FOR DETECTING THE MOVEMENT OF AN OBJECT IN AN AREA TO BE MONITORED.

Also Published As

Publication number Publication date
GB2155245A (en) 1985-09-18

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Legal Events

Date Code Title Description
PG Patent granted