FR2319215A1 - Antenne avec un element d'annulation d'echos - Google Patents

Antenne avec un element d'annulation d'echos

Info

Publication number
FR2319215A1
FR2319215A1 FR7621658A FR7621658A FR2319215A1 FR 2319215 A1 FR2319215 A1 FR 2319215A1 FR 7621658 A FR7621658 A FR 7621658A FR 7621658 A FR7621658 A FR 7621658A FR 2319215 A1 FR2319215 A1 FR 2319215A1
Authority
FR
France
Prior art keywords
echos
antenna
cancellation element
cancellation
echos cancellation
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.)
Granted
Application number
FR7621658A
Other languages
English (en)
French (fr)
Other versions
FR2319215B1 (enrdf_load_stackoverflow
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 FR2319215A1 publication Critical patent/FR2319215A1/fr
Application granted granted Critical
Publication of FR2319215B1 publication Critical patent/FR2319215B1/fr
Granted 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
FR7621658A 1975-07-21 1976-07-15 Antenne avec un element d'annulation d'echos Granted FR2319215A1 (fr)

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 (2)

Publication Number Publication Date
FR2319215A1 true FR2319215A1 (fr) 1977-02-18
FR2319215B1 FR2319215B1 (enrdf_load_stackoverflow) 1980-12-05

Family

ID=27416730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621658A Granted FR2319215A1 (fr) 1975-07-21 1976-07-15 Antenne avec un element d'annulation d'echos

Country Status (4)

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

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 (enrdf_load_stackoverflow) * 1986-05-01 1986-11-17
JPH01164241U (enrdf_load_stackoverflow) * 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
JPS5212544A (en) 1977-01-31
FR2319215B1 (enrdf_load_stackoverflow) 1980-12-05
GB1525639A (en) 1978-09-20
JPS5850441B2 (ja) 1983-11-10
DE2632030C2 (enrdf_load_stackoverflow) 1987-12-03
DE2632030A1 (de) 1977-02-17

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