GB1525639A - Antennae - Google Patents

Antennae

Info

Publication number
GB1525639A
GB1525639A GB2945276A GB2945276A GB1525639A GB 1525639 A GB1525639 A GB 1525639A GB 2945276 A GB2945276 A GB 2945276A GB 2945276 A GB2945276 A GB 2945276A GB 1525639 A GB1525639 A GB 1525639A
Authority
GB
United Kingdom
Prior art keywords
plate
subreflector
grid
reflector
july
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
GB2945276A
Other languages
English (en)
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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
Priority claimed from US05/597,368 external-priority patent/US3990080A/en
Priority claimed from US05/597,366 external-priority patent/US4034378A/en
Priority claimed from US05/597,367 external-priority patent/US4031538A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB1525639A publication Critical patent/GB1525639A/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
    • H01Q19/025—Means for reducing undesirable effects for optimizing the matching of the primary feed, e.g. vertex plates

Landscapes

  • Aerials With Secondary Devices (AREA)
GB2945276A 1975-07-21 1976-07-15 Antennae Expired GB1525639A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/597,368 US3990080A (en) 1975-07-21 1975-07-21 Antenna with echo cancelling elements
US05/597,366 US4034378A (en) 1975-07-21 1975-07-21 Antenna with echo cancelling elements
US05/597,367 US4031538A (en) 1975-07-21 1975-07-21 Antenna with echo cancelling elements

Publications (1)

Publication Number Publication Date
GB1525639A true GB1525639A (en) 1978-09-20

Family

ID=27416730

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2945276A Expired GB1525639A (en) 1975-07-21 1976-07-15 Antennae

Country Status (4)

Country Link
JP (1) JPS5850441B2 (cs)
DE (1) DE2632030A1 (cs)
FR (1) FR2319215A1 (cs)
GB (1) GB1525639A (cs)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3525553A1 (de) * 1985-07-17 1987-01-22 Siemens Ag Richtantenne
JPS61184308U (cs) * 1986-05-01 1986-11-17
JPH01164241U (cs) * 1988-05-10 1989-11-16

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133284A (en) * 1959-03-02 1964-05-12 Rca Corp Paraboloidal antenna with compensating elements to reduce back radiation into feed
GB973583A (en) * 1962-04-11 1964-10-28 Post Office Improvements in or relating to microwave aerials
US3148370A (en) * 1962-05-08 1964-09-08 Ite Circuit Breaker Ltd Frequency selective mesh with controllable mesh tuning

Also Published As

Publication number Publication date
FR2319215B1 (cs) 1980-12-05
JPS5850441B2 (ja) 1983-11-10
DE2632030A1 (de) 1977-02-17
JPS5212544A (en) 1977-01-31
DE2632030C2 (cs) 1987-12-03
FR2319215A1 (fr) 1977-02-18

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19960714