CA962342A - Capped antenna of the offset cassegrainian type - Google Patents

Capped antenna of the offset cassegrainian type

Info

Publication number
CA962342A
CA962342A CA169,919A CA169919A CA962342A CA 962342 A CA962342 A CA 962342A CA 169919 A CA169919 A CA 169919A CA 962342 A CA962342 A CA 962342A
Authority
CA
Canada
Prior art keywords
capped
antenna
offset
cassegrainian type
type
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
CA169,919A
Other languages
English (en)
Other versions
CA169919S (en
Inventor
Nhu Bui Hai
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.)
THOMASON- CSF
Original Assignee
THOMASON- CSF
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 THOMASON- CSF filed Critical THOMASON- CSF
Application granted granted Critical
Publication of CA962342A publication Critical patent/CA962342A/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
    • H01Q19/02—Details
    • H01Q19/021—Means for reducing undesirable effects
    • H01Q19/026—Means for reducing undesirable effects for reducing the primary feed spill-over
    • 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
CA169,919A 1972-04-21 1973-04-18 Capped antenna of the offset cassegrainian type Expired CA962342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7214251A FR2180585B1 (ja) 1972-04-21 1972-04-21

Publications (1)

Publication Number Publication Date
CA962342A true CA962342A (en) 1975-02-04

Family

ID=9097330

Family Applications (1)

Application Number Title Priority Date Filing Date
CA169,919A Expired CA962342A (en) 1972-04-21 1973-04-18 Capped antenna of the offset cassegrainian type

Country Status (7)

Country Link
US (1) US3810187A (ja)
JP (1) JPS5320342B2 (ja)
CA (1) CA962342A (ja)
DE (1) DE2319731C3 (ja)
FR (1) FR2180585B1 (ja)
GB (1) GB1359266A (ja)
IT (1) IT980311B (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2527545C3 (de) * 1975-06-20 1981-04-16 Naamloze Vennootschap Philips' Gloeilampenfabrieken, Eindhoven Im Spritzgußverfahren hergestellte Hornantenne
DE2749443C3 (de) * 1977-11-04 1980-06-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Mikrowellen-Breitbandrichtfunkantenne in Muschelbauweise
US4126864A (en) * 1978-01-23 1978-11-21 Hopkins B Ice shield for micro-wave antenna
US4626863A (en) * 1983-09-12 1986-12-02 Andrew Corporation Low side lobe Gregorian antenna
AU4407685A (en) * 1984-05-31 1985-12-31 H.R. Smith (Technical Developments) Ltd. Anechoic chambers
GB8510724D0 (en) * 1985-04-26 1985-06-05 British Telecomm Controlled attenuation of microwave signals
US4866457A (en) * 1988-11-08 1989-09-12 The United States Of America As Represented By The Secretary Of Commerce Covered inverted offset cassegrainian system
DE3915280C2 (de) * 1989-05-10 1993-11-04 Berthold Lab Prof R Vorrichtung zur mikrowellen-transmissions- oder absorptionsmessung
GB9006752D0 (en) * 1990-03-27 1990-05-23 Ferguson Ltd Microwave antenna unit
DE19953271A1 (de) * 1999-11-06 2001-05-10 Airsys Navigation Systems Gmbh Sendeantenne
JP2004077399A (ja) * 2002-08-22 2004-03-11 Hitachi Ltd ミリ波レーダ
WO2019195700A1 (en) * 2018-04-05 2019-10-10 L3 Essco Incorporated A metal space frame radome

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1128952A (fr) * 1955-03-17 1957-01-14 Materiel Telephonique Antenne pour ondes ultra-courtes
US3733609A (en) * 1971-07-02 1973-05-15 Radiation Inc Shrouded offset parabolic reflector antenna

Also Published As

Publication number Publication date
JPS5320342B2 (ja) 1978-06-26
GB1359266A (en) 1974-07-10
DE2319731C3 (de) 1981-01-08
FR2180585A1 (ja) 1973-11-30
DE2319731A1 (de) 1973-10-25
JPS4922061A (ja) 1974-02-27
FR2180585B1 (ja) 1974-12-20
IT980311B (it) 1974-09-30
US3810187A (en) 1974-05-07
DE2319731B2 (de) 1980-04-24

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