FR2101144B1 - - Google Patents

Info

Publication number
FR2101144B1
FR2101144B1 FR7031536A FR7031536A FR2101144B1 FR 2101144 B1 FR2101144 B1 FR 2101144B1 FR 7031536 A FR7031536 A FR 7031536A FR 7031536 A FR7031536 A FR 7031536A FR 2101144 B1 FR2101144 B1 FR 2101144B1
Authority
FR
France
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
FR7031536A
Other languages
French (fr)
Other versions
FR2101144A1 (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.)
Alcatel Lucent SAS
Original Assignee
Compagnie Generale dElectricite SA
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 Compagnie Generale dElectricite SA filed Critical Compagnie Generale dElectricite SA
Priority to FR7031536A priority Critical patent/FR2101144B1/fr
Priority to DE19712141047 priority patent/DE2141047A1/en
Priority to BE771448A priority patent/BE771448A/en
Priority to LU63757D priority patent/LU63757A1/xx
Priority to NL7111608A priority patent/NL7111608A/xx
Priority to US174600A priority patent/US3706999A/en
Publication of FR2101144A1 publication Critical patent/FR2101144A1/fr
Application granted granted Critical
Publication of FR2101144B1 publication Critical patent/FR2101144B1/fr
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
FR7031536A 1970-08-28 1970-08-28 Expired FR2101144B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR7031536A FR2101144B1 (en) 1970-08-28 1970-08-28
DE19712141047 DE2141047A1 (en) 1970-08-28 1971-08-17 Cassegrain antenna with limited overflow energy
BE771448A BE771448A (en) 1970-08-28 1971-08-18 BREAKAGE ANTENNA WITH LIMITED OVERFLOW ENERGY
LU63757D LU63757A1 (en) 1970-08-28 1971-08-23
NL7111608A NL7111608A (en) 1970-08-28 1971-08-24
US174600A US3706999A (en) 1970-08-28 1971-08-25 Cassegraninian antenna having limited spillover energy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7031536A FR2101144B1 (en) 1970-08-28 1970-08-28

Publications (2)

Publication Number Publication Date
FR2101144A1 FR2101144A1 (en) 1972-03-31
FR2101144B1 true FR2101144B1 (en) 1973-11-23

Family

ID=9060697

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7031536A Expired FR2101144B1 (en) 1970-08-28 1970-08-28

Country Status (6)

Country Link
US (1) US3706999A (en)
BE (1) BE771448A (en)
DE (1) DE2141047A1 (en)
FR (1) FR2101144B1 (en)
LU (1) LU63757A1 (en)
NL (1) NL7111608A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983560A (en) * 1974-06-06 1976-09-28 Andrew Corporation Cassegrain antenna with improved subreflector for terrestrial communication systems
DE2920781C2 (en) * 1979-05-22 1984-07-12 Siemens AG, 1000 Berlin und 8000 München Reflector antenna, consisting of a main reflector, a primary radiator and a subreflector
DE2954351C2 (en) * 1979-05-22 1986-07-17 Siemens AG, 1000 Berlin und 8000 München Reflector antenna
US6778810B1 (en) * 1999-12-03 2004-08-17 The Directtv Group, Inc. Method and apparatus for mitigating interference from terrestrial broadcasts sharing the same channel with satellite broadcasts using an antenna with posterior sidelobes
US7369809B1 (en) 2000-10-30 2008-05-06 The Directv Group, Inc. System and method for continuous broadcast service from non-geostationary orbits
US6611238B1 (en) 2001-11-06 2003-08-26 Hughes Electronics Corporation Method and apparatus for reducing earth station interference from non-GSO and terrestrial sources
US6975837B1 (en) 2003-01-21 2005-12-13 The Directv Group, Inc. Method and apparatus for reducing interference between terrestrially-based and space-based broadcast systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3209361A (en) * 1963-01-14 1965-09-28 James E Webb Cassegrainian antenna subreflector flange for suppressing ground noise
US3430244A (en) * 1964-11-25 1969-02-25 Radiation Inc Reflector antennas
GB1190566A (en) * 1966-07-04 1970-05-06 Post Office Aerials

Also Published As

Publication number Publication date
FR2101144A1 (en) 1972-03-31
NL7111608A (en) 1972-03-01
BE771448A (en) 1972-02-18
LU63757A1 (en) 1972-04-04
US3706999A (en) 1972-12-19
DE2141047A1 (en) 1972-03-02

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Legal Events

Date Code Title Description
ST Notification of lapse