FR2181959B1 - - Google Patents

Info

Publication number
FR2181959B1
FR2181959B1 FR7314589A FR7314589A FR2181959B1 FR 2181959 B1 FR2181959 B1 FR 2181959B1 FR 7314589 A FR7314589 A FR 7314589A FR 7314589 A FR7314589 A FR 7314589A FR 2181959 B1 FR2181959 B1 FR 2181959B1
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
FR7314589A
Other languages
French (fr)
Other versions
FR2181959A1 (ro
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of FR2181959A1 publication Critical patent/FR2181959A1/fr
Application granted granted Critical
Publication of FR2181959B1 publication Critical patent/FR2181959B1/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
    • H01Q19/10—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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/24—Polarising devices; Polarisation filters 
    • 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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/195—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device
FR7314589A 1972-04-24 1973-04-20 Expired FR2181959B1 (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05357/72A SE356641B (ro) 1972-04-24 1972-04-24

Publications (2)

Publication Number Publication Date
FR2181959A1 FR2181959A1 (ro) 1973-12-07
FR2181959B1 true FR2181959B1 (ro) 1977-02-11

Family

ID=20266295

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7314589A Expired FR2181959B1 (ro) 1972-04-24 1973-04-20

Country Status (6)

Country Link
US (1) US3820116A (ro)
CH (1) CH545542A (ro)
FR (1) FR2181959B1 (ro)
GB (1) GB1374567A (ro)
NL (1) NL178378C (ro)
SE (1) SE356641B (ro)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2450509A1 (fr) * 1979-03-02 1980-09-26 Thomson Csf Dispositif polariseur pour antenne microonde
FR2451114A1 (fr) * 1979-03-09 1980-10-03 Thomson Csf Antenne a plans paralleles a rotation de polarisation
US4343000A (en) * 1981-04-06 1982-08-03 The United States Of America As Represented By The Secretary Of The Navy Aircraft self-protection radar
US4977407A (en) * 1981-07-23 1990-12-11 Crane Patrick E Optical collimator
GB2110003B (en) * 1981-11-19 1985-03-13 Marconi Co Ltd Antenna assemblies
US4574287A (en) * 1983-03-04 1986-03-04 The United States Of America As Represented By The Secretary Of The Navy Fixed aperture, rotating feed, beam scanning antenna system
FR2557737B1 (fr) * 1983-12-30 1987-12-18 Thomson Csf Antenne a deux reflecteurs cylindro-paraboliques croises et son procede de fabrication
US5455589A (en) * 1994-01-07 1995-10-03 Millitech Corporation Compact microwave and millimeter wave radar
US5883602A (en) * 1996-06-05 1999-03-16 Apti, Inc. Wideband flat short foci lens antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907033A (en) * 1956-10-19 1959-09-29 Gabriel Co Wave-guide antenna
FR1264818A (fr) * 1959-08-10 1961-06-23 Gen Electric Co Ltd Perfectionnements apportés aux antennes passives
FR1307590A (fr) * 1960-12-27 1962-10-26 Western Electric Co Dispositif d'antenne
FR1508062A (fr) * 1965-04-12 1968-01-05 Csf Antennes aplanétiques
GB1179392A (en) * 1966-01-31 1970-01-28 Mini Of Technology Improvements in or relating to Horn Aerials
GB1181060A (en) * 1966-01-31 1970-02-11 Mini Of Technology Improvements in or relating to Horn Aerials

Also Published As

Publication number Publication date
SE356641B (ro) 1973-05-28
NL178378C (nl) 1986-03-03
CH545542A (ro) 1974-01-31
FR2181959A1 (ro) 1973-12-07
NL7305576A (ro) 1973-10-26
NL178378B (nl) 1985-10-01
US3820116A (en) 1974-06-25
GB1374567A (en) 1974-11-20

Similar Documents

Publication Publication Date Title
FR2181959B1 (ro)
FR2197457A7 (ro)
JPS4884213U (ro)
JPS4938900U (ro)
JPS5042248Y2 (ro)
JPS5245467B2 (ro)
JPS48101602A (ro)
JPS48105735U (ro)
JPS492139U (ro)
JPS4986464A (ro)
JPS4994532U (ro)
CS157394B1 (ro)
JPS48109967U (ro)
JPS4890112U (ro)
JPS4954555A (ro)
BG20869A1 (ro)
CH575606A5 (ro)
BG20556A3 (ro)
BG20834A3 (ro)
CH571946A5 (ro)
CH570073A5 (ro)
BG21231A3 (ro)
BG22376A3 (ro)
CH1504872A4 (ro)
CH4872A4 (ro)