CA2163516A1 - System for absorbing electromagnetic waves and method of manufacturing this system - Google Patents

System for absorbing electromagnetic waves and method of manufacturing this system

Info

Publication number
CA2163516A1
CA2163516A1 CA2163516A CA2163516A CA2163516A1 CA 2163516 A1 CA2163516 A1 CA 2163516A1 CA 2163516 A CA2163516 A CA 2163516A CA 2163516 A CA2163516 A CA 2163516A CA 2163516 A1 CA2163516 A1 CA 2163516A1
Authority
CA
Canada
Prior art keywords
electromagnetic waves
chamber
manufacturing
outer skin
surface resistance
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.)
Granted
Application number
CA2163516A
Other languages
French (fr)
Other versions
CA2163516C (en
Inventor
Gunter Nimtz
Achim Enders
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
Priority claimed from DE4404071A external-priority patent/DE4404071C2/en
Application filed by Individual filed Critical Individual
Publication of CA2163516A1 publication Critical patent/CA2163516A1/en
Application granted granted Critical
Publication of CA2163516C publication Critical patent/CA2163516C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H01Q17/008—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems with a particular shape
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0001—Rooms or chambers
    • H05K9/0003—Shielded walls, floors, ceilings, e.g. wallpaper, wall panel, electro-conductive plaster, concrete, cement, mortar

Abstract

In order to absorb electromagnetic waves in a measurement chamber, the sidewallsand the ceiling of the chamber are lined with contiguous pyramids (20). The pyramid vertices point into the chamber. The structure element (20) has a frame (22) formed by bars made of an electrically insulating glass fibre material and an outer skin (24). The outer skin is cut out of a surface resistance material web. The surface resistance material web is produced by continuously or almost continuously coating a mechanically flexible support web with an electroconductive layer made of a metallic material.
CA002163516A 1993-06-25 1994-06-27 System for absorbing electromagnetic waves and method of manufacturing this system Expired - Fee Related CA2163516C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4321165 1993-06-25
DEP4321165.8 1993-06-25
DE4404071A DE4404071C2 (en) 1993-06-25 1994-02-09 Arrangement for absorbing electromagnetic waves and method for producing this arrangement
DEP4404071.7 1994-02-09
PCT/EP1994/002073 WO1995000983A1 (en) 1993-06-25 1994-06-27 Arrangement for absorbing electromagnetic waves and process for producing the same

Publications (2)

Publication Number Publication Date
CA2163516A1 true CA2163516A1 (en) 1995-01-05
CA2163516C CA2163516C (en) 1999-07-13

Family

ID=25927110

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002163516A Expired - Fee Related CA2163516C (en) 1993-06-25 1994-06-27 System for absorbing electromagnetic waves and method of manufacturing this system

Country Status (10)

Country Link
US (1) US5710564A (en)
EP (1) EP0705487B1 (en)
JP (1) JPH08512178A (en)
CN (1) CN1054473C (en)
AT (1) ATE173861T1 (en)
AU (1) AU7124694A (en)
CA (1) CA2163516C (en)
DK (1) DK0705487T3 (en)
ES (1) ES2124894T3 (en)
WO (1) WO1995000983A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1187978A (en) * 1997-09-09 1999-03-30 Nitto Boseki Co Ltd Incombustible radio wave absorber
NL1010745C2 (en) * 1998-12-07 2000-06-08 Hollandse Signaalapparaten Bv Test room.
JP4377467B2 (en) 1999-01-21 2009-12-02 Ｔｄｋ株式会社 Radio wave absorber assembly member and radio wave absorber using the same
US6469667B2 (en) * 2000-02-01 2002-10-22 Science Applications International Corporation Passive anti-jamming antenna system
JP2003229691A (en) * 2002-01-31 2003-08-15 Riken Corp Radio wave absorbent
JP4346360B2 (en) * 2002-12-25 2009-10-21 東レ株式会社 Sheet material for radio wave absorber and radio wave absorber
US7250920B1 (en) 2004-09-29 2007-07-31 The United States Of America As Represented By The Secrtary Of The Navy Multi-purpose electromagnetic radiation interface system and method
US7688246B2 (en) * 2005-05-10 2010-03-30 Fuji Xerox Co., Ltd. Radio wave absorber, electromagnetic field measurement system and radiated immunity system
JP2007096269A (en) * 2005-08-30 2007-04-12 Nisca Corp Near field electromagnetic wave absorber
WO2007149121A2 (en) * 2005-12-12 2007-12-27 Irina Puscasu Selective reflective and absorptive surfaces and method for resonantly coupling incident radiation
WO2012094498A2 (en) * 2011-01-07 2012-07-12 The Regents Of The University Of Michigan Electromagnetic radiation absorbing surfaces for cloaking three-dimensional objects
FR3118563B3 (en) * 2020-12-28 2022-12-30 Emitech Inflatable anechoic panels

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE540736A (en) * 1953-03-28
DE1934170U (en) * 1965-07-29 1966-03-10 Siemens Ag LOW REFLECTION DAMPING BODY FOR ELECTROMAGNETIC WAVES.
DE3838749A1 (en) * 1988-11-15 1990-05-17 Gruenzweig & Hartmann Montage BROADBAND ABSORBER FOR ELECTROMAGNETIC SHAFTS
JPH02142200A (en) * 1988-11-22 1990-05-31 Akzo Kashima Ltd Radiowave absorbing body
US5125992A (en) * 1989-10-02 1992-06-30 Brunswick Corp. Bulk rf absorber apparatus and method of making same
ES2075167T3 (en) * 1989-10-26 1995-10-01 Colebrand Ltd ABSORBENTS.
FR2666439B1 (en) * 1990-08-30 1994-03-18 Commissariat A Energie Atomique ABSORBENT SCREEN BASED ON ELECTRONIC CONDUCTIVE POLYMER.
WO1993015530A1 (en) * 1992-02-04 1993-08-05 Illbruck Gmbh Absorber of electromagnetic waves

Also Published As

Publication number Publication date
ES2124894T3 (en) 1999-02-16
CA2163516C (en) 1999-07-13
JPH08512178A (en) 1996-12-17
DK0705487T3 (en) 1999-08-09
ATE173861T1 (en) 1998-12-15
AU7124694A (en) 1995-01-17
CN1126000A (en) 1996-07-03
EP0705487B1 (en) 1998-11-25
WO1995000983A1 (en) 1995-01-05
EP0705487A1 (en) 1996-04-10
CN1054473C (en) 2000-07-12
US5710564A (en) 1998-01-20

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed