DE68915635D1 - Absorber für elektromagnetische Wellen. - Google Patents

Absorber für elektromagnetische Wellen.

Info

Publication number
DE68915635D1
DE68915635D1 DE68915635T DE68915635T DE68915635D1 DE 68915635 D1 DE68915635 D1 DE 68915635D1 DE 68915635 T DE68915635 T DE 68915635T DE 68915635 T DE68915635 T DE 68915635T DE 68915635 D1 DE68915635 D1 DE 68915635D1
Authority
DE
Germany
Prior art keywords
absorber
electromagnetic waves
waves
electromagnetic
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.)
Revoked
Application number
DE68915635T
Other languages
English (en)
Other versions
DE68915635T2 (de
Inventor
Ken Ishino
Taro Miura
Takashi Watanabe
Masashi Katsumata
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.)
TDK Corp
Original Assignee
TDK Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16158381&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68915635(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by TDK Corp filed Critical TDK Corp
Publication of DE68915635D1 publication Critical patent/DE68915635D1/de
Application granted granted Critical
Publication of DE68915635T2 publication Critical patent/DE68915635T2/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/10—Radiation diagrams of antennas
    • G01R29/105—Radiation diagrams of antennas using anechoic chambers; Chambers or open field sites used therefor
    • 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

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Building Environments (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Measuring And Other Instruments (AREA)
DE68915635T 1988-07-26 1989-07-24 Absorber für elektromagnetische Wellen. Revoked DE68915635T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63184731A JP2510880B2 (ja) 1988-07-26 1988-07-26 多層型電波吸収体及び該電波吸収体からなる電波暗室

Publications (2)

Publication Number Publication Date
DE68915635D1 true DE68915635D1 (de) 1994-07-07
DE68915635T2 DE68915635T2 (de) 1994-09-15

Family

ID=16158381

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68915635T Revoked DE68915635T2 (de) 1988-07-26 1989-07-24 Absorber für elektromagnetische Wellen.

Country Status (5)

Country Link
US (1) US4972191A (de)
EP (1) EP0353923B1 (de)
JP (1) JP2510880B2 (de)
KR (1) KR920002228B1 (de)
DE (1) DE68915635T2 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2574409B2 (ja) * 1988-07-08 1997-01-22 松下電器産業株式会社 Ｅｍｃ試験用電磁波無響室およびそのシールド材
JP2516829B2 (ja) * 1990-06-30 1996-07-24 株式会社サン・コミュニケーションズ 遊技装置の無線デ―タ伝送方式
JPH04310875A (ja) * 1991-04-09 1992-11-02 Tdk Corp 小型電波暗室
JPH04354103A (ja) * 1991-05-31 1992-12-08 Yoshiyuki Naito 広帯域電波吸収装置
US5331567A (en) * 1991-08-22 1994-07-19 The University Of Colorado Foundation, Inc. Pyramidal absorber having multiple backing layers providing improved low frequency response
JP2500160B2 (ja) * 1991-09-19 1996-05-29 喜之 内藤 広帯域電波吸収体
DE4225912B4 (de) * 1992-08-05 2006-04-27 Epcos Ag Vorkonfektionierte Absorbermodule
WO1995005013A1 (en) * 1993-08-06 1995-02-16 Ray Proof Shielding Systems Corporation Method for constructing an absorber and absorber structure
EP0660123A3 (de) * 1993-12-27 1996-08-07 Tdk Corp Reflexionsarmer Raum und Wellenabsorber.
DE19525636A1 (de) * 1995-07-14 1997-01-16 Advanced Ferrite Tech Wandbelag zum Absorbieren elektromagnetischer Wellen
WO1998031072A1 (en) * 1997-01-13 1998-07-16 Symetrix Corporation Electromagnetic wave absorption panels and materials for same
US5853889A (en) * 1997-01-13 1998-12-29 Symetrix Corporation Materials for electromagnetic wave absorption panels
US6037046A (en) * 1997-01-13 2000-03-14 Symetrix Corporation Multi-component electromagnetic wave absorption panels
US6225939B1 (en) * 1999-01-22 2001-05-01 Mcdonnell Douglas Corporation Impedance sheet device
US7830296B2 (en) * 2007-07-11 2010-11-09 Finisar Corporation Anechoic structures for absorbing electromagnetic interference in a communications module
KR101042601B1 (ko) * 2008-05-14 2011-06-20 한국전자통신연구원 저항성 재질을 이용한 공진형 전자파 흡수체
KR20100072383A (ko) * 2008-12-22 2010-07-01 한국전자통신연구원 전자파 흡수체를 구비한 운송수단 용 자동 요금 징수 시스템, 운송용 장치, 건물형 구조물, 전자기기, 전자파 무반사실
JP5651116B2 (ja) * 2009-08-20 2015-01-07 パナソニックＩｐマネジメント株式会社 電磁波加熱装置
US8462039B2 (en) * 2009-12-09 2013-06-11 Electronics And Telecommunications Research Institute Indoor electromagnetic environment implementing structure and a constructing method thereof
DE102010055850B4 (de) 2010-12-22 2018-07-26 Deutsche Telekom Ag Absorber für elektromagnetische Wellen
KR101311212B1 (ko) * 2010-12-23 2013-09-25 한국전자통신연구원 전자파 흡수 장치
US9482708B2 (en) 2013-01-29 2016-11-01 ETS-Lindgren Inc. Enhanced reverberation chamber
JP1491765S (de) * 2013-03-21 2015-06-08
USD733134S1 (en) * 2013-03-21 2015-06-30 Hitachi, Ltd. Magnetic disk storage unit for electronic computer
US9746423B2 (en) 2013-05-15 2017-08-29 ETS-Lindgren Inc. Reverberation chamber loading

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB538623A (en) * 1940-02-06 1941-08-11 Standard Telephones Cables Ltd Improvements in or relating to ultra high frequency electron discharge devices using resonators
US3623099A (en) * 1969-12-17 1971-11-23 Kunihiro Suetake Superwide band wave absorber
US3737903A (en) * 1970-07-06 1973-06-05 K Suetake Extremely thin, wave absorptive wall
JPS5311501A (en) * 1976-07-20 1978-02-02 Tdk Corp Wave absorbing wall
US4118704A (en) * 1976-04-07 1978-10-03 Tdk Electronics Co., Ltd. Electromagnetic wave-absorbing wall
JPS5324202A (en) * 1976-08-19 1978-03-06 Tdk Corp Magnetic electric wave absorber
US4186274A (en) * 1978-06-22 1980-01-29 Bose Corporation Sound system control
JPS5547479A (en) * 1978-09-30 1980-04-03 Citizen Watch Co Ltd Electronic watch with temperature compensator
JPS5549798A (en) * 1978-10-03 1980-04-10 Aichi Tokei Denki Kk Transmitter for collecting remote data
JPS6023560Y2 (ja) * 1979-07-14 1985-07-13 トヨタ自動車株式会社 車両用ディスクブレ−キ
JPS6094799A (ja) * 1983-10-27 1985-05-27 ニチアス株式会社 電波吸収壁体用パネル
JPH01251698A (ja) * 1987-11-28 1989-10-06 Toppan Printing Co Ltd 電磁波吸収体素子

Also Published As

Publication number Publication date
EP0353923A2 (de) 1990-02-07
EP0353923B1 (de) 1994-06-01
JP2510880B2 (ja) 1996-06-26
US4972191A (en) 1990-11-20
EP0353923A3 (en) 1990-03-14
KR910003858A (ko) 1991-02-28
KR920002228B1 (ko) 1992-03-20
JPH0235797A (ja) 1990-02-06
DE68915635T2 (de) 1994-09-15

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation