CA1304155C - Lentille-polariseur-radome - Google Patents

Lentille-polariseur-radome

Info

Publication number
CA1304155C
CA1304155C CA000578627A CA578627A CA1304155C CA 1304155 C CA1304155 C CA 1304155C CA 000578627 A CA000578627 A CA 000578627A CA 578627 A CA578627 A CA 578627A CA 1304155 C CA1304155 C CA 1304155C
Authority
CA
Canada
Prior art keywords
lens
dielectric
radio frequency
aperture
frequency energy
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.)
Expired - Fee Related
Application number
CA000578627A
Other languages
English (en)
Inventor
Keith C. Smith
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.)
Raytheon Co
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Application granted granted Critical
Publication of CA1304155C publication Critical patent/CA1304155C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/425—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising a metallic grid
    • 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 
    • H01Q15/242—Polarisation converters
    • H01Q15/244—Polarisation converters converting a linear polarised wave into a circular polarised wave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
    • H01Q17/001—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems for modifying the directional characteristic of an aerial
    • 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
    • H01Q19/06—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 refracting or diffracting devices, e.g. lens

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)
CA000578627A 1987-10-02 1988-09-28 Lentille-polariseur-radome Expired - Fee Related CA1304155C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10377887A 1987-10-02 1987-10-02
US103,778 1987-10-02

Publications (1)

Publication Number Publication Date
CA1304155C true CA1304155C (fr) 1992-06-23

Family

ID=22296996

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000578627A Expired - Fee Related CA1304155C (fr) 1987-10-02 1988-09-28 Lentille-polariseur-radome

Country Status (4)

Country Link
EP (1) EP0310414B1 (fr)
AU (1) AU618281B2 (fr)
CA (1) CA1304155C (fr)
DE (1) DE3889834T2 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2729791B1 (fr) * 1988-06-14 1997-05-16 Thomson Csf Dispositif pour diminuer l'effet de radome avec une antenne large bande a rayonnement de surface, et diminuer la surface equivalente refelchissante de l'ensemble
US5017939A (en) * 1989-09-26 1991-05-21 Hughes Aircraft Company Two layer matching dielectrics for radomes and lenses for wide angles of incidence
US5086301A (en) * 1990-01-10 1992-02-04 Intelsat Polarization converter application for accessing linearly polarized satellites with single- or dual-circularly polarized earth station antennas
IT1284301B1 (it) * 1996-03-13 1998-05-18 Space Engineering Spa Antenna a singolo o a doppio riflettore, a fasci sagomati, a polarizzazione lineare.
DE19714578C2 (de) * 1997-04-09 1999-02-18 Bosch Gmbh Robert Radarsystem, insbesondere für Kraftfahrzeuganwendungen
US20100074315A1 (en) * 2008-09-24 2010-03-25 Quellan, Inc. Noise sampling detectors
CN107706526B (zh) * 2017-10-19 2024-04-05 西南交通大学 高功率埋入式极化转换天线罩
CN112234360B (zh) * 2020-09-17 2022-05-13 南京理工大学 端接滤波电路控制电特性的双极化透射表面及其设计方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1267802A (en) * 1968-03-25 1972-03-22 Post Office Improvements in or relating to front-fed aerial systems
GB1562866A (en) * 1976-12-08 1980-03-19 Gen Dynamics Corp Antenn with performted metal plate angle filter
US4187507A (en) * 1978-10-13 1980-02-05 Sperry Rand Corporation Multiple beam antenna array
US4220957A (en) * 1979-06-01 1980-09-02 General Electric Company Dual frequency horn antenna system
DE3027094C2 (de) * 1980-07-17 1987-03-19 Siemens AG, 1000 Berlin und 8000 München Umpolarisiereinrichtung zur Erzeugung zirkular polarisierter elektromagnetischer Wellen
US4342034A (en) * 1980-11-24 1982-07-27 Raytheon Company Radio frequency antenna with polarization changer and filter
FR2548466B1 (fr) * 1983-07-01 1985-10-25 Radiotechnique Compelec Dispositif d'emission-reception pour radar de detection de presence, et procede pour le realiser
US4698639A (en) * 1986-01-14 1987-10-06 The Singer Company Circularly polarized leaky waveguide doppler antenna
EP0280379A3 (fr) * 1987-02-27 1990-04-25 Yoshihiko Sugio Antenne chargée par un milieu diélectrique ou magnétique

Also Published As

Publication number Publication date
DE3889834D1 (de) 1994-07-07
EP0310414A3 (en) 1990-04-25
EP0310414B1 (fr) 1994-06-01
AU618281B2 (en) 1991-12-19
AU2292388A (en) 1989-04-06
EP0310414A2 (fr) 1989-04-05
DE3889834T2 (de) 1995-01-05

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Legal Events

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