GB1366259A - Wide-band electromagnetic wave reflectors - Google Patents

Wide-band electromagnetic wave reflectors

Info

Publication number
GB1366259A
GB1366259A GB5992672A GB5992672A GB1366259A GB 1366259 A GB1366259 A GB 1366259A GB 5992672 A GB5992672 A GB 5992672A GB 5992672 A GB5992672 A GB 5992672A GB 1366259 A GB1366259 A GB 1366259A
Authority
GB
United Kingdom
Prior art keywords
dipoles
wide
dec
lens
amplifiers
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
GB5992672A
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 GB1366259A publication Critical patent/GB1366259A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

1366259 Aerials THOMSON-CSF 28 Dec 1972 [31 Dec 1971] 59926/72 Heading H4A A wide-band E/M wave reflector system comprises a focusing means, such as a Luneberg lens 12, upon the focal surface of which is a reflective layer F. In order to provide enhanced reflection in a particular, e.g. lower, frequency band, dipoles 13 are arranged at the level of said reflective surface and are connected to respective reflection-type amplifiers 14. As described, the reflective layer is constituted by a grid of parallel wires 11 which are embedded in a plastics material. The wires are interrupted to accommodate the dipoles 13, which are perpendicular thereto, and which form an array as shown. The amplifiers 14 are disposed on a ground plane 15. They are powered by a source G and are coupled to the dipoles via split-tube type baluns (Fig. 4, not shown). In another embodiment, relating to a further aspect of the invention, a single dipole is provided inside a Luneberg lens, and a reflective surface is formed by metallizing part of the outside of said lens (Fig. 5, not shown). Use of the reflector system as an airborne transponder is mentioned.
GB5992672A 1971-12-31 1972-12-28 Wide-band electromagnetic wave reflectors Expired GB1366259A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7147769A FR2165792B1 (en) 1971-12-31 1971-12-31

Publications (1)

Publication Number Publication Date
GB1366259A true GB1366259A (en) 1974-09-11

Family

ID=9088474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5992672A Expired GB1366259A (en) 1971-12-31 1972-12-28 Wide-band electromagnetic wave reflectors

Country Status (5)

Country Link
JP (1) JPS4875155A (en)
DE (1) DE2263806A1 (en)
FR (1) FR2165792B1 (en)
GB (1) GB1366259A (en)
IT (1) IT972972B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134122A1 (en) * 1981-08-28 1983-03-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Antenna system with a dielectric
GB2331185A (en) * 1983-03-05 1999-05-12 Emi Ltd Antenna arrangement
EP3242358A1 (en) * 2016-05-06 2017-11-08 Amphenol Antenna Solutions Inc. High gain, multi-beam antenna for 5g wireless communications
CN108292807A (en) * 2015-11-24 2018-07-17 株式会社村田制作所 Luneburg lens antenna device
WO2019222735A1 (en) 2018-05-18 2019-11-21 American Antenna Company, Llc System and method for miniaturized cell tower antenna arrays and highly directional electronic communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2102907C (en) * 1991-05-13 2001-12-18 Christopher Howson Radiowave antenna system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3134122A1 (en) * 1981-08-28 1983-03-17 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Antenna system with a dielectric
GB2331185A (en) * 1983-03-05 1999-05-12 Emi Ltd Antenna arrangement
GB2331185B (en) * 1983-03-05 1999-09-22 Emi Ltd Antenna arrangement
CN108292807A (en) * 2015-11-24 2018-07-17 株式会社村田制作所 Luneburg lens antenna device
US10777902B2 (en) 2015-11-24 2020-09-15 Murata Manufacturing Co., Ltd. Luneburg lens antenna device
EP3242358A1 (en) * 2016-05-06 2017-11-08 Amphenol Antenna Solutions Inc. High gain, multi-beam antenna for 5g wireless communications
US10256551B2 (en) 2016-05-06 2019-04-09 Amphenol Antenna Solutions, Inc. High gain, multi-beam antenna for 5G wireless communications
WO2019222735A1 (en) 2018-05-18 2019-11-21 American Antenna Company, Llc System and method for miniaturized cell tower antenna arrays and highly directional electronic communication
US11695203B2 (en) 2018-05-18 2023-07-04 American Antenna Company, Llc System and method for miniaturized cell tower antenna arrays and highly directional electronic communication

Also Published As

Publication number Publication date
DE2263806A1 (en) 1973-07-05
FR2165792B1 (en) 1976-10-29
FR2165792A1 (en) 1973-08-10
JPS4875155A (en) 1973-10-09
IT972972B (en) 1974-05-31

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees