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KR910008979A - 무선 주파수 무반향실 - Google Patents

무선 주파수 무반향실 Download PDF

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Publication number
KR910008979A
KR910008979A KR1019890015529A KR890015529A KR910008979A KR 910008979 A KR910008979 A KR 910008979A KR 1019890015529 A KR1019890015529 A KR 1019890015529A KR 890015529 A KR890015529 A KR 890015529A KR 910008979 A KR910008979 A KR 910008979A
Authority
KR
South Korea
Prior art keywords
antenna
test apparatus
reflector
radio wave
radio
Prior art date
Application number
KR1019890015529A
Other languages
English (en)
Other versions
KR970007981B1 (ko
Inventor
시게까즈 시부야
Original Assignee
시게까즈 시부야
가네꼬 요시아끼
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 시게까즈 시부야, 가네꼬 요시아끼 filed Critical 시게까즈 시부야
Publication of KR910008979A publication Critical patent/KR910008979A/ko
Application granted granted Critical
Publication of KR970007981B1 publication Critical patent/KR970007981B1/ko

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/03—Constructional details, e.g. casings, housings
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

내용 없음

Description

무선 주파수 무반향실
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 실시예를 도시한 평면도.
제5도는 제4도의 A-A선에 따른 단면도.
제6도는 제5도의 C-C선에 따른 단면도.

Claims (2)

  1. 그의 반사면이 상방으로 비스듬히 배열되는 그러한 수단으로 개구된 외벽(1) 상부의 모든 내부위에 구비되는 전파 반사기(2)와, 안테나(3)와 시험장치(4)의 고정 테이블(5)사이에 배열되고 상기 안테나(3)로부터 단지 직접파를 통과시키기 위하여 틈(7)을 가지는 반사파를 차단하기 위한 스크린(6)을 포함하는 무선 주파수 무반향실.
  2. 그의 반사면이 상방으로 비스듬히 배열되는 그러한 수단으로 외벽(1)의 모든 내부위에 구비된 전파 반사기(2)와, 안테나(3)와 시험장치(4)의 고정 테이블(5) 사이에 배열되고 상기 안테나(3)로부터 단지 직접파를 통과시키기 위하여 틈(8)을 가지는 반사파를 차단하기 위한 스크린(6)과, 마루면과 함께 삼각의 프리즘을 형성하고 그의 세로 방향은 안테나(3)와 시험장치(4)의 고정 테이블(5)이 결합하는 방향과 일치하고, 그의 반사면이 상방으로 비스듬히 배열되는 것과 같은 수단으로 마루면 위에 구비된 전파반사기(9)와, 천장면과 함께 삼각의 프리즘을 형성하고 그의 세로방향은 안테나(3)와 시험장치(4)의 고정테이블(5)이 결합하는 방향과 일치하고, 그의 반사면이 하부로 비스듬히 배열되는 것과 같은 수단으로 천장면 아래에 구비된 전파반사기(10)와, 그리고 상기 전파 반사기(10)가 구비되지 않은 천장면 아래에 구비된 전파 흡수제(11)를 포함하는 무선 주파수 무반향실.
    ※참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890015529A 1988-04-28 1989-10-27 무선 주파수 무반향실 KR970007981B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP105900/1988 1988-04-28
JP63105900A JPH0732320B2 (ja) 1988-04-28 1988-04-28 反射板のある電波暗室

Publications (2)

Publication Number Publication Date
KR910008979A true KR910008979A (ko) 1991-05-31
KR970007981B1 KR970007981B1 (ko) 1997-05-19

Family

ID=14419759

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890015529A KR970007981B1 (ko) 1988-04-28 1989-10-27 무선 주파수 무반향실

Country Status (6)

Country Link
US (1) US4906998A (ko)
EP (1) EP0340012B1 (ko)
JP (1) JPH0732320B2 (ko)
KR (1) KR970007981B1 (ko)
CN (1) CN1017765B (ko)
DE (1) DE68907992T2 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100500493B1 (ko) * 1997-10-24 2005-07-14 가부시키가이샤 네오맥스 실리콘계 전도성 재료와 그 제조 방법

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
JPH04276700A (ja) * 1991-03-05 1992-10-01 Sanki Denshi Kogyo Kk 電波暗室
US5208599A (en) * 1991-08-28 1993-05-04 Ohio State University Serrated electromagnetic absorber
US5302960A (en) * 1992-07-20 1994-04-12 Digital Equipment Corporation Multi-element susceptibility room
US5438333A (en) * 1994-07-28 1995-08-01 Arc Technologies, Inc. Electromagnetic radiation absorbing shroud
US5929972A (en) * 1998-01-14 1999-07-27 Quo Vadis, Inc. Communication apparatus and method for performing vision testing on deaf and severely hearing-impaired individuals
JP3983404B2 (ja) * 1999-01-13 2007-09-26 本田技研工業株式会社 レーダ搭載車両用ゲート
SE0002980D0 (sv) * 2000-03-31 2000-08-23 Kildal Antenn Consulting Ab A method and an apparatus for measuring the performance of antennas
US6756932B1 (en) * 2003-06-10 2004-06-29 Raytheon Company Microwave absorbing material
TWI390217B (zh) * 2006-09-28 2013-03-21 Murata Manufacturing Co 天線特性測定裝置及天線特性測定方法
EP1983608B1 (en) * 2007-04-20 2013-02-27 Saab AB Airborne vehicle integrated antenna
US8013775B2 (en) * 2007-04-30 2011-09-06 Viasat, Inc. Radio frequency absorber
US7830296B2 (en) * 2007-07-11 2010-11-09 Finisar Corporation Anechoic structures for absorbing electromagnetic interference in a communications module
KR101009630B1 (ko) * 2008-11-04 2011-01-21 한국전자통신연구원 안테나 방사 성능 측정 장치 및 그 설계 방법
US7940204B1 (en) * 2009-05-28 2011-05-10 Orbit Advanced Technologies, Inc. Absorber assembly for an anechoic chamber
US8346245B2 (en) * 2009-06-19 2013-01-01 Empire Technology Development Llc Wireless communication obstacles for improving wireless communications
RU2456625C1 (ru) * 2011-03-22 2012-07-20 Сергей Николаевич Алаторцев Устройство подвеса радиолокационного объекта
US9482708B2 (en) 2013-01-29 2016-11-01 ETS-Lindgren Inc. Enhanced reverberation chamber
RU2541206C2 (ru) * 2013-03-06 2015-02-10 Открытое акционерное общество "Информационные спутниковые системы" имени академика М.Ф. Решетнева" Способ определения радиотехнических характеристик крупногабаритных антенн для космических аппаратов без их непосредственных измерений
US9746423B2 (en) 2013-05-15 2017-08-29 ETS-Lindgren Inc. Reverberation chamber loading
CN105264397B (zh) * 2013-06-06 2018-11-09 皇家飞利浦有限公司 磁共振成像系统的rf屏蔽检查室
EP3022279B1 (en) * 2013-07-18 2019-03-27 Galaxy Surfactants Ltd. Free-flowing, solid, high active alkyl ether sulfates
US20170115334A1 (en) * 2014-04-03 2017-04-27 Vecta Pty Ltd Testing Method and Apparatus
CN106850085B (zh) * 2016-12-29 2023-07-21 西北核技术研究所 一种测试材料射频响应性能的装置
CN108366518B (zh) * 2018-01-30 2020-10-27 深圳市共进电子股份有限公司 一种金属屏蔽箱

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120641A (en) * 1960-06-08 1964-02-04 Emerson & Cuming Inc Microwave anechoic chamber
US3113271A (en) * 1960-06-28 1963-12-03 Emerson & Cuming Inc Microwave anechoic chamber
US3308463A (en) * 1964-08-04 1967-03-07 Goodrich Co B F Anechoic chamber
US3571479A (en) * 1969-06-30 1971-03-16 Goodyear Aerospace Corp Digital electronic radar target generator
US3806943A (en) * 1972-10-02 1974-04-23 A Holloway Anechoic chamber
CA1100625A (en) * 1977-04-01 1981-05-05 Leland H. Hemming Plane wave lens
US4507660A (en) * 1982-07-16 1985-03-26 Advanced Electromagnetics, Inc. Anechoic chamber

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100500493B1 (ko) * 1997-10-24 2005-07-14 가부시키가이샤 네오맥스 실리콘계 전도성 재료와 그 제조 방법

Also Published As

Publication number Publication date
EP0340012A1 (en) 1989-11-02
JPH0732320B2 (ja) 1995-04-10
KR970007981B1 (ko) 1997-05-19
EP0340012B1 (en) 1993-08-04
US4906998A (en) 1990-03-06
DE68907992D1 (de) 1993-09-09
CN1037424A (zh) 1989-11-22
JPH02153598A (ja) 1990-06-13
CN1017765B (zh) 1992-08-05
DE68907992T2 (de) 1993-11-11

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