JPH05114814A - 減衰器を持つマイクロウエーブ用アンテナユニツト - Google Patents

減衰器を持つマイクロウエーブ用アンテナユニツト

Info

Publication number
JPH05114814A
JPH05114814A JP3061693A JP6169391A JPH05114814A JP H05114814 A JPH05114814 A JP H05114814A JP 3061693 A JP3061693 A JP 3061693A JP 6169391 A JP6169391 A JP 6169391A JP H05114814 A JPH05114814 A JP H05114814A
Authority
JP
Japan
Prior art keywords
antenna
dish
microwave
case
maximum value
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.)
Pending
Application number
JP3061693A
Other languages
English (en)
Japanese (ja)
Inventor
Edric Hays Field
ヘイズ フイールド エドリツク
Reginald Edward Gray
エドワード グレイ レジナルド
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.)
Thomson Multimedia Sales UK Ltd
Original Assignee
Ferguson 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 Ferguson Ltd filed Critical Ferguson Ltd
Publication of JPH05114814A publication Critical patent/JPH05114814A/ja
Pending 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/125—Means for positioning
    • H01Q1/1264—Adjusting different parts or elements of an aerial unit
    • 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
    • H01Q19/13—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 being a single radiating element, e.g. a dipole, a slot, a waveguide termination

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)
JP3061693A 1990-03-27 1991-03-26 減衰器を持つマイクロウエーブ用アンテナユニツト Pending JPH05114814A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9006752.1 1990-03-27
GB909006752A GB9006752D0 (en) 1990-03-27 1990-03-27 Microwave antenna unit

Publications (1)

Publication Number Publication Date
JPH05114814A true JPH05114814A (ja) 1993-05-07

Family

ID=10673279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3061693A Pending JPH05114814A (ja) 1990-03-27 1991-03-26 減衰器を持つマイクロウエーブ用アンテナユニツト

Country Status (4)

Country Link
EP (1) EP0449107A3 (de)
JP (1) JPH05114814A (de)
CN (1) CN1055448A (de)
GB (2) GB9006752D0 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0997977A1 (de) * 1998-10-27 2000-05-03 TRT Lucent Technologies (SA) Funkverbindungsabschwächer für ein integriertes Antennenadapter-Endgerät
EP0997976A1 (de) * 1998-10-27 2000-05-03 TRT Lucent Technologies (SA) Dämpfungsglied zur Dämpfung einer Funkverbindung für Endgerätadapter mit integrierter Antenne
US6816739B1 (en) 2000-03-03 2004-11-09 Alcatel Canada Inc. Radio system attenuator for an antenna

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326210A (en) * 1969-09-16 1973-08-08 Kokusai Denshin Denwa Co Ltd Antenna using at least one reflector
FR2180585B1 (de) * 1972-04-21 1974-12-20 Thomson Csf
DE2947910C2 (de) * 1979-11-28 1982-05-27 Siemens AG, 1000 Berlin und 8000 München Cassegrain-Antenne
DE2947987C2 (de) * 1979-11-28 1982-03-04 Siemens AG, 1000 Berlin und 8000 München Cassegrain-Antenne
US4410892A (en) * 1981-05-26 1983-10-18 Andrew Corporation Reflector-type microwave antennas with absorber lined conical feed
DE3476950D1 (en) * 1983-10-17 1989-04-06 Andrew Corp Horn-reflector microwave antennas with absorber lined conical feed
US5317328A (en) * 1984-04-02 1994-05-31 Gabriel Electronics Incorporated Horn reflector antenna with absorber lined conical feed

Also Published As

Publication number Publication date
GB2244600A (en) 1991-12-04
EP0449107A2 (de) 1991-10-02
CN1055448A (zh) 1991-10-16
GB9006752D0 (en) 1990-05-23
EP0449107A3 (de) 1991-10-30
GB9106554D0 (en) 1991-05-15

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