FR2432776A1 - Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire - Google Patents

Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire

Info

Publication number
FR2432776A1
FR2432776A1 FR7823055A FR7823055A FR2432776A1 FR 2432776 A1 FR2432776 A1 FR 2432776A1 FR 7823055 A FR7823055 A FR 7823055A FR 7823055 A FR7823055 A FR 7823055A FR 2432776 A1 FR2432776 A1 FR 2432776A1
Authority
FR
France
Prior art keywords
circularly polarized
polarized wave
large angular
network
angular opening
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
FR7823055A
Other languages
English (en)
Other versions
FR2432776B1 (fr
Inventor
Francois Dachert
Jean Gelin
Raymond Ropars
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT 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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Priority to FR7823055A priority Critical patent/FR2432776A1/fr
Priority to US06/060,201 priority patent/US4260991A/en
Publication of FR2432776A1 publication Critical patent/FR2432776A1/fr
Application granted granted Critical
Publication of FR2432776B1 publication Critical patent/FR2432776B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
    • 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 

Landscapes

  • Aerials With Secondary Devices (AREA)

Abstract

a. Réflecteur du type Luneberg utilisable en onde à polarisation circulaire. b. La sphère de Luneberg renferme, à lambda /4 de sa surface extérieure un premier réseau de fils conducteurs parallèles épousant la surface sphérique et à sa surface une surface réfléchissante composée d'au moins un deuxième réseau de fils parallèles orthogonaux à ceux du premier réseau. c. Augmentation de la surface équivalent des cibles radar.
FR7823055A 1978-08-04 1978-08-04 Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire Granted FR2432776A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7823055A FR2432776A1 (fr) 1978-08-04 1978-08-04 Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire
US06/060,201 US4260991A (en) 1978-08-04 1979-07-24 Luneberg type passive reflector for circularly polarized waves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7823055A FR2432776A1 (fr) 1978-08-04 1978-08-04 Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire

Publications (2)

Publication Number Publication Date
FR2432776A1 true FR2432776A1 (fr) 1980-02-29
FR2432776B1 FR2432776B1 (fr) 1981-11-27

Family

ID=9211598

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7823055A Granted FR2432776A1 (fr) 1978-08-04 1978-08-04 Reflecteur passif pour onde polarisee circulairement a grande ouverture angulaire

Country Status (2)

Country Link
US (1) US4260991A (fr)
FR (1) FR2432776A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4234181B1 (ja) * 2007-08-23 2009-03-04 株式会社村田製作所 ワイヤーグリッドおよびその製造方法
US9234978B2 (en) * 2009-07-07 2016-01-12 Westerngeco L.L.C. Method for positioning the front end of a seismic spread
CN113594708A (zh) * 2021-08-05 2021-11-02 吉林大学 一种工作在77Ghz的车载无源电磁波反射器及设置方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989746A (en) * 1956-08-21 1961-06-20 Marconi Wireless Telegraph Co Scanning antenna system utilizing polarization filters
GB984144A (en) * 1961-12-22 1965-02-24 Telefunken Patent Improvements in or relating to luneberg lens reflectors for electromagnetic waves
US3309705A (en) * 1966-06-08 1967-03-14 Stephen J Blank Radar target for circularly polarized radiation
FR2205754A1 (fr) * 1972-11-03 1974-05-31 Thomson Csf

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047860A (en) * 1957-11-27 1962-07-31 Austin B Swallow Two ply electromagnetic energy reflecting fabric
US3119109A (en) * 1958-12-31 1964-01-21 Raytheon Co Polarization filter antenna utilizing reflector consisting of parallel separated metal strips mounted on low loss dish
US3015102A (en) * 1959-10-02 1961-12-26 Bendix Corp Lens reflector

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989746A (en) * 1956-08-21 1961-06-20 Marconi Wireless Telegraph Co Scanning antenna system utilizing polarization filters
GB984144A (en) * 1961-12-22 1965-02-24 Telefunken Patent Improvements in or relating to luneberg lens reflectors for electromagnetic waves
US3309705A (en) * 1966-06-08 1967-03-14 Stephen J Blank Radar target for circularly polarized radiation
FR2205754A1 (fr) * 1972-11-03 1974-05-31 Thomson Csf

Also Published As

Publication number Publication date
US4260991A (en) 1981-04-07
FR2432776B1 (fr) 1981-11-27

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse