GB1125828A - Improvements to luneburg lenses - Google Patents

Improvements to luneburg lenses

Info

Publication number
GB1125828A
GB1125828A GB4345466A GB4345466A GB1125828A GB 1125828 A GB1125828 A GB 1125828A GB 4345466 A GB4345466 A GB 4345466A GB 4345466 A GB4345466 A GB 4345466A GB 1125828 A GB1125828 A GB 1125828A
Authority
GB
United Kingdom
Prior art keywords
shell
over
joint
dielectric material
expanded dielectric
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
GB4345466A
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
Publication of GB1125828A publication Critical patent/GB1125828A/en
Expired 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
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/08—Refracting or diffracting devices, e.g. lens, prism formed of solid dielectric material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/002—Inhomogeneous material in general
    • H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
    • 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

Abstract

1,125,828. Aerials. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. 28 Sept., 1966 [13 Oct., 1965], No. 43454/66. Heading H4A. A Luneberg type lens comprises a central sphere 7 surrounded by six shells 1 to 6, each made from the same expanded dielectric material, such as polystyrene or polyethylene of density 35 to 125 grams/dm<SP>3</SP>, which is loaded with different concentrations of a filler so that the equation may be approximated, where n = refractive index. d = distance from centre to point considered. R = outside radius. The expanded dielectric material for a shell is mixed with a paste of naturally oxidized non- conducting aluminium flakes of sizos 0À1 to 10 microns in a binder such as ethyl acetate containing a copolymer of vinyl chloride and vinyl propionate, and is formed between inner and outer hemispherical moulds and made solid by heating. When assembling the shell, the two halves are put together so that the joint is at right angles to that of the previous shell. A thin outer cover or radome 8, also in two parts, and made of glass fibre, may be fitted over the shell 7 and have a protective coating 9 over its joint. The lens may be utilized as a reflector by providing metallization over a portion of its external surface.
GB4345466A 1965-10-13 1966-09-28 Improvements to luneburg lenses Expired GB1125828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR34728A FR1464693A (en) 1965-10-13 1965-10-13 Improvements to artificial dielectric materials and Luneburg reflectors made from such materials

Publications (1)

Publication Number Publication Date
GB1125828A true GB1125828A (en) 1968-09-05

Family

ID=8590321

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4345466A Expired GB1125828A (en) 1965-10-13 1966-09-28 Improvements to luneburg lenses

Country Status (3)

Country Link
DE (1) DE1541422A1 (en)
FR (1) FR1464693A (en)
GB (1) GB1125828A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993010572A1 (en) * 1991-11-19 1993-05-27 Thomson Consumer Electronics S.A. Dielectric material for antennas
US5430444A (en) * 1991-08-21 1995-07-04 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Radar reflectors
US6721103B1 (en) 2002-09-30 2004-04-13 Ems Technologies Canada Ltd. Method for fabricating luneburg lenses
WO2006028272A1 (en) * 2004-09-10 2006-03-16 Jsp Corporation Luneberg dielectric lens and method of producing same
EP2229710A1 (en) * 2007-12-17 2010-09-22 Matsing Pte. Ltd. An artificial dielectric material and a method of manufacturing the same
US10418716B2 (en) 2015-08-27 2019-09-17 Commscope Technologies Llc Lensed antennas for use in cellular and other communications systems
US10651546B2 (en) 2016-01-19 2020-05-12 Commscope Technologies Llc Multi-beam antennas having lenses formed of a lightweight dielectric material
US11283186B2 (en) 2016-03-25 2022-03-22 Commscope Technologies Llc Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
US11431100B2 (en) 2016-03-25 2022-08-30 Commscope Technologies Llc Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
US11527835B2 (en) 2017-09-15 2022-12-13 Commscope Technologies Llc Methods of preparing a composite dielectric material

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430444A (en) * 1991-08-21 1995-07-04 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Radar reflectors
WO1993010572A1 (en) * 1991-11-19 1993-05-27 Thomson Consumer Electronics S.A. Dielectric material for antennas
US6721103B1 (en) 2002-09-30 2004-04-13 Ems Technologies Canada Ltd. Method for fabricating luneburg lenses
WO2006028272A1 (en) * 2004-09-10 2006-03-16 Jsp Corporation Luneberg dielectric lens and method of producing same
US7671820B2 (en) 2004-09-10 2010-03-02 Sumitomo Electric Industries, Ltd. Luneberg dielectric lens and method of producing same
EP2229710A4 (en) * 2007-12-17 2011-03-16 Matsing Pte Ltd An artificial dielectric material and a method of manufacturing the same
EP2229710A1 (en) * 2007-12-17 2010-09-22 Matsing Pte. Ltd. An artificial dielectric material and a method of manufacturing the same
US10418716B2 (en) 2015-08-27 2019-09-17 Commscope Technologies Llc Lensed antennas for use in cellular and other communications systems
US10483650B1 (en) 2015-08-27 2019-11-19 Commscope Technologies Llc Lensed antennas for use in cellular and other communications systems
US11264726B2 (en) 2015-08-27 2022-03-01 Commscope Technologies Llc Lensed antennas for use in cellular and other communications systems
US10651546B2 (en) 2016-01-19 2020-05-12 Commscope Technologies Llc Multi-beam antennas having lenses formed of a lightweight dielectric material
US11283186B2 (en) 2016-03-25 2022-03-22 Commscope Technologies Llc Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
US11431100B2 (en) 2016-03-25 2022-08-30 Commscope Technologies Llc Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
US11527835B2 (en) 2017-09-15 2022-12-13 Commscope Technologies Llc Methods of preparing a composite dielectric material

Also Published As

Publication number Publication date
DE1541422A1 (en) 1969-07-24
FR1464693A (en) 1967-01-06

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