GB1396675A - Radomes - Google Patents

Radomes

Info

Publication number
GB1396675A
GB1396675A GB5089773A GB5089773A GB1396675A GB 1396675 A GB1396675 A GB 1396675A GB 5089773 A GB5089773 A GB 5089773A GB 5089773 A GB5089773 A GB 5089773A GB 1396675 A GB1396675 A GB 1396675A
Authority
GB
United Kingdom
Prior art keywords
network
wall
frequency
radome
nov
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
Application number
GB5089773A
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Publication of GB1396675A publication Critical patent/GB1396675A/en
Expired 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

Landscapes

  • Details Of Aerials (AREA)

Abstract

1396675 Aerials THOMSON-CSF 1 Nov 1973 [3 Nov 1972] 50897/73 Heading H4A A. radome comprises a dielectric material wall, of such a thickness that preferentially transmits waves of a frequency F1, a first network 7 of continuous wires, which is integral with said wall, and a second network 8 of discontinuous metal elements, which is also integral with said wall, and which is interleaved with the network 7. Each of said discontinuous elements may have linear dimensions not exceeding one-eighth of the wavelength corresponding to the frequency F1. The two networks in association with the wall constitute an assembly which resonates at a second frequency F2, which is lower than F1. As described, the radome is the ogival nose of a high speed aircraft, and is made of ceramic material or fibre glass. In the latter case, the network 7 may be incorporated when building up the nose on a mould. The network 8 (together with the network 7, when appropriate), can be formed by a printed circuit technique on a dielectric material substrate such as polyethyleneterephthalate. The substrate may then be adhered to the interior of the radome wall, or it may be incorporated therein in the case of a fibre glass wall.
GB5089773A 1972-11-03 1973-11-01 Radomes Expired GB1396675A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7238959A FR2205754B1 (en) 1972-11-03 1972-11-03

Publications (1)

Publication Number Publication Date
GB1396675A true GB1396675A (en) 1975-06-04

Family

ID=9106598

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5089773A Expired GB1396675A (en) 1972-11-03 1973-11-01 Radomes

Country Status (4)

Country Link
US (1) US3864690A (en)
DE (1) DE2354754C2 (en)
FR (1) FR2205754B1 (en)
GB (1) GB1396675A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130799A (en) * 1982-11-18 1984-06-06 Secr Defence Structural member for radar apparatus

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3961333A (en) * 1974-08-29 1976-06-01 Texas Instruments Incorporated Radome wire grid having low pass frequency characteristics
FR2432776A1 (en) * 1978-08-04 1980-02-29 Lignes Telegraph Telephon PASSIVE REFLECTOR FOR CIRCULARLY POLARIZED WAVE WITH LARGE ANGULAR OPENING
US4476471A (en) * 1981-02-09 1984-10-09 Nippon Electric Co., Ltd. Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
FR2539245A1 (en) * 1983-01-06 1984-07-13 Bruguet Jean Louis Earth screen based on composite materials
US5579024A (en) * 1984-08-20 1996-11-26 Radant Systems, Inc. Electromagnetic energy shield
US4638324A (en) * 1984-12-10 1987-01-20 Hazeltine Corporation Resistive loop angular filter
JPH0685487B2 (en) * 1985-05-18 1994-10-26 日本電装株式会社 Dual antenna for dual frequency
US4797683A (en) * 1986-10-01 1989-01-10 United Technologies Corporation Multi-spectral radome
US5384575A (en) * 1988-09-26 1995-01-24 Hughes Aircraft Company Bandpass frequency selective surface
US5455594A (en) * 1992-07-16 1995-10-03 Conductus, Inc. Internal thermal isolation layer for array antenna
US5497169A (en) * 1993-07-15 1996-03-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wide angle, single screen, gridded square-loop frequency selective surface for diplexing two closely separated frequency bands
US5652631A (en) * 1995-05-08 1997-07-29 Hughes Missile Systems Company Dual frequency radome
ES2115532B1 (en) * 1996-04-25 1999-02-16 Const Aeronauticas Sa REFLECTING ELEMENTS EMBEDDED IN AEROSPACE STRUCTURES FOR TELECOMMUNICATIONS.
GB2378820A (en) * 2001-08-17 2003-02-19 Anafa Electromagnetic Solution Electromagnetic filter
EP1508940A1 (en) * 2003-08-19 2005-02-23 Era Patents Limited Radiation controller including reactive elements on a dielectric surface
US9362615B2 (en) * 2012-10-25 2016-06-07 Raytheon Company Multi-bandpass, dual-polarization radome with embedded gridded structures
US9231299B2 (en) * 2012-10-25 2016-01-05 Raytheon Company Multi-bandpass, dual-polarization radome with compressed grid
US9608321B2 (en) * 2013-11-11 2017-03-28 Gogo Llc Radome having localized areas of reduced radio signal attenuation
US9123998B1 (en) * 2014-03-04 2015-09-01 The Boeing Company Lightning protected radome system
JP6326920B2 (en) * 2014-04-04 2018-05-23 株式会社Ｓｏｋｅｎ Radar equipment

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841786A (en) * 1956-02-03 1958-07-01 Robert H Dicke Dielectric structures
US2978702A (en) * 1957-07-31 1961-04-04 Arf Products Antenna polarizer having two phase shifting medium
US3148370A (en) * 1962-05-08 1964-09-08 Ite Circuit Breaker Ltd Frequency selective mesh with controllable mesh tuning
FR1492106A (en) * 1966-04-28 1967-08-18 Thomson Houston Comp Francaise Improvements to transmitting antennas
US3633206A (en) * 1967-01-30 1972-01-04 Edward Bellamy Mcmillan Lattice aperture antenna
FR1560520A (en) * 1968-01-24 1969-03-21
US3560986A (en) * 1969-02-24 1971-02-02 Brunswick Corp Radar antenna radome construction
FR2181577B1 (en) * 1972-04-28 1974-07-26 Bony Gilbert

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130799A (en) * 1982-11-18 1984-06-06 Secr Defence Structural member for radar apparatus

Also Published As

Publication number Publication date
DE2354754C2 (en) 1982-09-23
FR2205754B1 (en) 1977-04-22
US3864690A (en) 1975-02-04
DE2354754A1 (en) 1974-05-09
FR2205754A1 (en) 1974-05-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee