SE8007075L - SKERMNING - Google Patents

SKERMNING

Info

Publication number
SE8007075L
SE8007075L SE8007075A SE8007075A SE8007075L SE 8007075 L SE8007075 L SE 8007075L SE 8007075 A SE8007075 A SE 8007075A SE 8007075 A SE8007075 A SE 8007075A SE 8007075 L SE8007075 L SE 8007075L
Authority
SE
Sweden
Prior art keywords
alloy
conductivity metals
layers
permeability films
low
Prior art date
Application number
SE8007075A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
J C Volkers
W R Conley
Original Assignee
Illinois Tool Works
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 Illinois Tool Works filed Critical Illinois Tool Works
Publication of SE8007075L publication Critical patent/SE8007075L/en

Links

Classifications

    • 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

Landscapes

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

Abstract

A multi-layer radio frequency electromagnetic radiation shield structure, primarily for lamination to a housing of plastics material 10, comprises alternating layers of relatively high electrical conductivity metals, e.g. Al, Cu, B, D, F and low conductivity metals, e.g. stainless steel, Al-Cu alloy, A, C, E to combine the effects of reflection and absorption and thereby maximize the attenuation of the radiation Eo. Alternatively a similar structure of layers of materials with differing magnetic permeabilities may be used for the same purpose. High permeability films may consist of an alloy of Fe, Ni, Mo and Mn. Low permeability films may be made of Al. <IMAGE>
SE8007075A 1979-10-31 1980-10-09 SKERMNING SE8007075L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8943579A 1979-10-31 1979-10-31

Publications (1)

Publication Number Publication Date
SE8007075L true SE8007075L (en) 1981-05-01

Family

ID=22217629

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8007075A SE8007075L (en) 1979-10-31 1980-10-09 SKERMNING

Country Status (9)

Country Link
JP (1) JPS56130999A (en)
AU (1) AU6343780A (en)
BR (1) BR8006926A (en)
DE (1) DE3041603A1 (en)
ES (1) ES496421A0 (en)
FR (1) FR2468965A1 (en)
GB (1) GB2062358B (en)
IT (1) IT1134068B (en)
SE (1) SE8007075L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115699U (en) * 1983-01-25 1984-08-04 旭スクリ−ンプロセス印刷株式会社 Electromagnetic shielding material
JPS60172534A (en) * 1984-02-17 1985-09-06 株式会社東芝 Shielding member for electromagnetic wave
DE3534059C1 (en) * 1985-09-25 1990-05-17 Dornier Gmbh Fibre composite material
JPS62158900U (en) * 1986-03-28 1987-10-08
JPS6356999A (en) * 1986-08-28 1988-03-11 平岡織染株式会社 Non-amorphous metal laminated sheet
FR2737347B1 (en) * 1988-11-17 1997-12-19 Alsthom Cge Alcatel STRUCTURE FOR THE ABSORPTION OF ELECTROMAGNETIC WAVES
FR2716577B1 (en) * 1989-03-22 1996-05-24 France Etat Armement Materials and paints intended to reduce the reflection of radar waves.
ES2075167T3 (en) * 1989-10-26 1995-10-01 Colebrand Ltd ABSORBENTS.
RU2155420C1 (en) * 2000-01-12 2000-08-27 Акционерное общество закрытого типа "МаТИК - юрис групп" Radio-wave absorbing coat, method for its production and controlling of its properties, and device for remote measurement of reflecting properties of coats on equipment in microwave range
GB2439109A (en) * 2006-06-13 2007-12-19 Isis Innovation Electromagnetic radiation screen
US7798277B2 (en) 2007-05-31 2010-09-21 Caterpillar Inc Machine retarder
GB201112740D0 (en) 2011-07-25 2011-09-07 Qinetiq Ltd Radiation absorption
RU2646439C1 (en) * 2017-03-14 2018-03-06 Федеральное государственное бюджетное учреждение науки Институт космических исследований Российской академии наук Multilayer electromagnetic screen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE512391A (en) * 1951-06-29
GB757490A (en) * 1953-03-14 1956-09-19 Gilbert Anthony Mullins Hyde Improvements in or relating to electric cables and wave-guides
US3300781A (en) * 1965-05-27 1967-01-24 Nat Res Corp Radar countermeasure article
US4047174A (en) * 1968-06-07 1977-09-06 The United States Of America As Represented By The Secretary Of The Army Method of reducing the radar cross-section of a dielectric body
NL7103795A (en) * 1970-10-01 1972-04-05

Also Published As

Publication number Publication date
ES8201388A1 (en) 1981-12-01
AU6343780A (en) 1981-05-07
FR2468965A1 (en) 1981-05-08
GB2062358A (en) 1981-05-20
JPS56130999A (en) 1981-10-14
GB2062358B (en) 1983-08-17
IT1134068B (en) 1986-07-24
ES496421A0 (en) 1981-12-01
DE3041603A1 (en) 1981-05-14
IT8025610A0 (en) 1980-10-28
BR8006926A (en) 1981-05-05

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