GB633943A - Improvements in or relating to compound sheet dielectric structures - Google Patents

Improvements in or relating to compound sheet dielectric structures

Info

Publication number
GB633943A
GB633943A GB2081845A GB2081845A GB633943A GB 633943 A GB633943 A GB 633943A GB 2081845 A GB2081845 A GB 2081845A GB 2081845 A GB2081845 A GB 2081845A GB 633943 A GB633943 A GB 633943A
Authority
GB
United Kingdom
Prior art keywords
skins
compound sheet
expanded
polymethyl methacrylate
thin sheets
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
GB2081845A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2081845A priority Critical patent/GB633943A/en
Publication of GB633943A publication Critical patent/GB633943A/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
    • H01Q1/422—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material
    • H01Q1/424—Housings not intimately mechanically associated with radiating elements, e.g. radome comprising two or more layers of dielectric material comprising a layer of expanded material

Landscapes

  • Laminated Bodies (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

633,943. Compound sheet materials. BIRKS, J. B. Aug. 13, 1945, No. 20818. Drawings to Specification. [Class 140] [Also in Group XL (c)] Compound sheet materials for protective housings for electromagnetic aerial systems, spacing, supporting, or sealing members for electromagnetic wave-guides or transmission lines, comprise two spaced thin sheets or skins of a dielectric material separated by a layer of lower effective dielectric constant, the thicknesses of the three layers being so chosen that the reflections of incident electromagnetic radiation from the two skins cancel or partly cancel one another, whereby the power reflection coefficient of the laminated structure is small. The skins may be of woven fibre-glass cloth, thin sheets of polymethyl methacrylate, or fibre-glass laminated with synthetic resin. The core may be expanded polymethyl methacrylate, ebonite, or other expanded or foamed plastic materials, or a tubular grid, lattice or other spacing structure made of paper or plastic material,
GB2081845A 1945-08-13 1945-08-13 Improvements in or relating to compound sheet dielectric structures Expired GB633943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2081845A GB633943A (en) 1945-08-13 1945-08-13 Improvements in or relating to compound sheet dielectric structures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2081845A GB633943A (en) 1945-08-13 1945-08-13 Improvements in or relating to compound sheet dielectric structures

Publications (1)

Publication Number Publication Date
GB633943A true GB633943A (en) 1949-12-30

Family

ID=10152201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2081845A Expired GB633943A (en) 1945-08-13 1945-08-13 Improvements in or relating to compound sheet dielectric structures

Country Status (1)

Country Link
GB (1) GB633943A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302211A (en) * 1987-04-14 1997-01-08 Thomson Csf Wall for radomes,and radomes thus obtained
FR2855915A1 (en) * 2003-06-09 2004-12-10 Mitsubishi Electric Corp RADOME WITH LAMINATE STRUCTURE
WO2013037811A1 (en) 2011-09-12 2013-03-21 Dsm Ip Assets B.V. Composite radome wall
WO2014057051A1 (en) 2012-10-12 2014-04-17 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same
WO2015000926A1 (en) 2013-07-02 2015-01-08 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2302211A (en) * 1987-04-14 1997-01-08 Thomson Csf Wall for radomes,and radomes thus obtained
US5631663A (en) * 1987-04-14 1997-05-20 Thomson-Csf Wall for radomes, and radomes thus obtained
GB2302211B (en) * 1987-04-14 1997-08-13 Thomson Csf Wall for radomes,and radomes thus obtained
FR2855915A1 (en) * 2003-06-09 2004-12-10 Mitsubishi Electric Corp RADOME WITH LAMINATE STRUCTURE
WO2013037811A1 (en) 2011-09-12 2013-03-21 Dsm Ip Assets B.V. Composite radome wall
WO2014057051A1 (en) 2012-10-12 2014-04-17 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same
US10062962B2 (en) 2012-10-12 2018-08-28 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same
WO2015000926A1 (en) 2013-07-02 2015-01-08 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same
US10153546B2 (en) 2013-07-02 2018-12-11 Dsm Ip Assets B.V. Composite antiballistic radome walls and methods of making the same

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