NL7305576A - - Google Patents

Info

Publication number
NL7305576A
NL7305576A NL7305576A NL7305576A NL7305576A NL 7305576 A NL7305576 A NL 7305576A NL 7305576 A NL7305576 A NL 7305576A NL 7305576 A NL7305576 A NL 7305576A NL 7305576 A NL7305576 A NL 7305576A
Authority
NL
Netherlands
Application number
NL7305576A
Other versions
NL178378C (nl
NL178378B (nl
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 filed Critical
Publication of NL7305576A publication Critical patent/NL7305576A/xx
Publication of NL178378B publication Critical patent/NL178378B/xx
Application granted granted Critical
Publication of NL178378C publication Critical patent/NL178378C/xx

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
NLAANVRAGE7305576,A 1972-04-24 1973-04-19 Reflector-antenne met elliptische primaire straler. NL178378C (nl)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
NL7305576A true NL7305576A (enrdf_load_stackoverflow) 1973-10-26
NL178378B NL178378B (nl) 1985-10-01
NL178378C NL178378C (nl) 1986-03-03

Family

ID=20266295

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7305576,A NL178378C (nl) 1972-04-24 1973-04-19 Reflector-antenne met elliptische primaire straler.

Country Status (6)

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

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
GB1374567A (en) 1974-11-20
CH545542A (enrdf_load_stackoverflow) 1974-01-31
NL178378C (nl) 1986-03-03
US3820116A (en) 1974-06-25
SE356641B (enrdf_load_stackoverflow) 1973-05-28
FR2181959A1 (enrdf_load_stackoverflow) 1973-12-07
FR2181959B1 (enrdf_load_stackoverflow) 1977-02-11
NL178378B (nl) 1985-10-01

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
V4 Discontinued because of reaching the maximum lifetime of a patent