TW200617404A - Radio frequency anechoic chamber with improved test stand - Google Patents

Radio frequency anechoic chamber with improved test stand

Info

Publication number
TW200617404A
TW200617404A TW094107397A TW94107397A TW200617404A TW 200617404 A TW200617404 A TW 200617404A TW 094107397 A TW094107397 A TW 094107397A TW 94107397 A TW94107397 A TW 94107397A TW 200617404 A TW200617404 A TW 200617404A
Authority
TW
Taiwan
Prior art keywords
radio frequency
support column
test stand
frequency anechoic
anechoic chamber
Prior art date
Application number
TW094107397A
Other languages
English (en)
Other versions
TWI354106B (en
Inventor
Paul J Moller
Eric L Krenz
James P Phillips
Hugh K Smith
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of TW200617404A publication Critical patent/TW200617404A/zh
Application granted granted Critical
Publication of TWI354106B publication Critical patent/TWI354106B/zh

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
    • A01F29/005—Cutting apparatus specially adapted for cutting hay, straw or the like for disintegrating and cutting up bales of hay, straw or fodder
    • 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
    • G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
    • G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
    • G01R29/0821—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning rooms and test sites therefor, e.g. anechoic chambers, open field sites or TEM cells
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
    • A01F29/02—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges in a plane perpendicular to their rotational axis
    • A01F29/04—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges in a plane perpendicular to their rotational axis with feeding direction transverse to axis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
    • A01F29/09—Details
    • A01F29/10—Feeding devices
TW094107397A 2004-03-22 2005-03-11 Radio frequency anechoic chamber with improved tes TWI354106B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/805,996 US7102562B2 (en) 2004-03-22 2004-03-22 Radio frequency anechoic chamber with improved test stand

Publications (2)

Publication Number Publication Date
TW200617404A true TW200617404A (en) 2006-06-01
TWI354106B TWI354106B (en) 2011-12-11

Family

ID=34862027

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094107397A TWI354106B (en) 2004-03-22 2005-03-11 Radio frequency anechoic chamber with improved tes

Country Status (6)

Country Link
US (1) US7102562B2 (zh)
EP (1) EP1580566B1 (zh)
JP (2) JP5203553B2 (zh)
KR (1) KR100713043B1 (zh)
DE (1) DE602005011351D1 (zh)
TW (1) TWI354106B (zh)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190301B2 (en) * 2004-12-22 2007-03-13 Motorola, Inc. Radio frequency anechoic chamber with nonperturbing wireless signalling means
US7688246B2 (en) * 2005-05-10 2010-03-30 Fuji Xerox Co., Ltd. Radio wave absorber, electromagnetic field measurement system and radiated immunity system
EP1955084A1 (de) * 2005-11-30 2008-08-13 Astrium GmbH Hochfrequenzmesshalle zur vermessung von grossen messobjekten
CN101039534B (zh) * 2006-03-15 2012-06-20 鸿富锦精密工业（深圳）有限公司 声音检测设备和自动传送装置
CN1964547A (zh) * 2006-11-30 2007-05-16 中兴通讯股份有限公司 确定天线最小测试距离的方法
US7880670B2 (en) * 2007-06-18 2011-02-01 AGC Automotive Signal measurement system and method for testing an RF component
US7830296B2 (en) * 2007-07-11 2010-11-09 Finisar Corporation Anechoic structures for absorbing electromagnetic interference in a communications module
CN102269783A (zh) * 2010-06-02 2011-12-07 鸿富锦精密工业（深圳）有限公司 全电波暗室
FR2965930B1 (fr) * 2010-10-08 2013-05-10 Satimo Ind Dispositif de test electromagnetique d'un objet
US20130099956A1 (en) * 2011-10-24 2013-04-25 Lsi Corporation Apparatus to reduce specific absorption rate
DE102013004774B3 (de) * 2013-03-20 2014-09-25 Cetecom Gmbh Zirkular polarisierte Breitbandantenne und Anordnung derselben in einem reflektionsarmen Raum
RU2626049C1 (ru) * 2016-03-09 2017-07-21 государственное бюджетное образовательное учреждение высшего профессионального образования "Первый Санкт-Петербургский государственный медицинский университет имени академика И.П. Павлова" Министерства здравоохранения Российской Федерации Способ измерения плотности потока энергии электромагнитного излучения от мобильного телефона
US20180115065A1 (en) 2016-10-26 2018-04-26 International Business Machines Corporation In-field millimeter-wave phased array radiation pattern estimation and validation
KR101935259B1 (ko) * 2017-02-10 2019-01-07 한국전자통신연구원 전자파 잔향실
WO2020124979A1 (en) * 2018-12-21 2020-06-25 Huawei Technologies Co., Ltd. A portable, integrated antenna test bed with built-in turntable
US11959955B2 (en) 2020-09-21 2024-04-16 Argo AI, LLC Enhanced anechoic chamber

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3806943A (en) * 1972-10-02 1974-04-23 A Holloway Anechoic chamber
US4274048A (en) 1978-12-18 1981-06-16 General Dynamics Corporation, Electronics Division Three-dimensional measurement of radiant energy scattering characteristics with a turntable-type scanning interferometer
US4947175A (en) * 1983-12-27 1990-08-07 Lockheed Corporation Radar range
JPS61160067A (ja) * 1985-01-08 1986-07-19 Mitsubishi Electric Corp 空中線試験装置
JPS63185097A (ja) * 1987-01-28 1988-07-30 セイコーインスツルメンツ株式会社 電磁波吸収兼音波吸収ブロツク
JPS63276294A (ja) * 1987-05-08 1988-11-14 Seiko Instr & Electronics Ltd 電磁波吸収エレメント
JP2602872B2 (ja) 1988-01-20 1997-04-23 株式会社東芝 放射電磁界特性測定装置
US4879560A (en) * 1988-07-06 1989-11-07 Northrop Corporation Radar test device with rotator inside subject-support fixture
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
US4990923A (en) * 1989-06-29 1991-02-05 The Boeing Company Test pylon having low radar cross section
US5556501A (en) * 1989-10-03 1996-09-17 Applied Materials, Inc. Silicon scavenger in an inductively coupled RF plasma reactor
US5028928A (en) 1990-06-26 1991-07-02 Vidmar Robert J Ultra-stable, stressed-skin inflatable target support systems
US5707486A (en) * 1990-07-31 1998-01-13 Applied Materials, Inc. Plasma reactor using UHF/VHF and RF triode source, and process
US5099244A (en) * 1990-08-06 1992-03-24 Lockheed Corporation Support pylon for radar cross-section model testing
JPH0526931A (ja) * 1991-07-19 1993-02-05 Junkosha Co Ltd アンテナの指向特性測定装置
JP3279038B2 (ja) * 1994-01-31 2002-04-30 ソニー株式会社 プラズマ装置およびこれを用いたプラズマ処理方法
ATE251798T1 (de) * 1994-04-28 2003-10-15 Applied Materials Inc Verfahren zum betreiben eines cvd-reaktors hoher plasma-dichte mit kombinierter induktiver und kapazitiver einkopplung
US6252541B1 (en) * 1994-07-11 2001-06-26 Mcdonnell Douglas Corporation Low RCS test mounts
JP3424867B2 (ja) * 1994-12-06 2003-07-07 富士通株式会社 プラズマ処理装置及びプラズマ処理方法
JPH08172292A (ja) * 1994-12-16 1996-07-02 Osaka Gas Co Ltd ゴム系電波吸収材料
US5888413A (en) * 1995-06-06 1999-03-30 Matsushita Electric Industrial Co., Ltd. Plasma processing method and apparatus
JP3030453B2 (ja) * 1995-12-27 2000-04-10 道晴 高橋 広帯域電波吸収体
JPH09251935A (ja) * 1996-03-18 1997-09-22 Applied Materials Inc プラズマ点火装置、プラズマを用いる半導体製造装置及び半導体装置のプラズマ点火方法
US5824607A (en) * 1997-02-06 1998-10-20 Applied Materials, Inc. Plasma confinement for an inductively coupled plasma reactor
JPH11118856A (ja) * 1997-10-16 1999-04-30 Tdk Corp アンテナ昇降装置
US5936568A (en) * 1998-02-09 1999-08-10 Mcdonnell Douglas Corporation Low radar cross-section (RCS) support pylon and low RCS measurement system employing same
JP2000013085A (ja) * 1998-06-24 2000-01-14 Pfu Ltd 電波吸収体敷設構造
JP3349689B2 (ja) * 1999-11-08 2002-11-25 株式会社デバイス アンテナ測定器
JP2001174493A (ja) * 1999-12-20 2001-06-29 Toshiba Corp 放射電磁界特性測定装置
US6329953B1 (en) 2000-09-29 2001-12-11 Rangestar Wireless Method and system for rating antenna performance
JP2002328143A (ja) * 2001-02-27 2002-11-15 Atr Adaptive Communications Res Lab 電波暗箱
US6626188B2 (en) * 2001-06-28 2003-09-30 International Business Machines Corporation Method for cleaning and preconditioning a chemical vapor deposition chamber dome
EP1412766B1 (en) 2001-07-27 2006-06-14 Advantest Corporation Electromagnetic wave measuring apparatus
JP2003057281A (ja) * 2001-08-20 2003-02-26 Murata Mfg Co Ltd 電波暗室、放射電磁波測定システムおよび放射電磁波の測定方法

Also Published As

Publication number Publication date
JP2005274570A (ja) 2005-10-06
KR100713043B1 (ko) 2007-05-02
JP5736347B2 (ja) 2015-06-17
EP1580566A1 (en) 2005-09-28
EP1580566B1 (en) 2008-12-03
KR20060044481A (ko) 2006-05-16
JP2012194187A (ja) 2012-10-11
US7102562B2 (en) 2006-09-05
TWI354106B (en) 2011-12-11
DE602005011351D1 (de) 2009-01-15
US20050206550A1 (en) 2005-09-22
JP5203553B2 (ja) 2013-06-05

Similar Documents

Publication Publication Date Title
TW200617404A (en) Radio frequency anechoic chamber with improved test stand
WO2006094081A3 (en) Electromagnetic device with integral non-linear component
PL1666195T3 (pl) Urządzenie mocujące do rozłącznego ustalania palety, z elementem tłumiącym
US20110226544A1 (en) Microelectromechanical System Testing Device
US20090175460A1 (en) Artificial mouth with acoustic tube outputting plane waves
WO2001077629A3 (en) Spatial and spectral wavefront analysis and measurement
TW200641359A (en) Signal probe and probe assembly
WO2005109237A3 (en) Over-under desk apparatus and method
KR20090012818A (ko) 비파괴 검사장치
AU2013100055A4 (en) Speaker stand capable of changing an angle and position of a speaker
US20160265712A1 (en) Method and apparatus of a versatile multiple-purpose stand
WO2006012369A3 (en) Improved support apparatus and methods for one or more items
CN207531002U (zh) 一种WiFi音箱移动固定装置
WO2007053477A3 (en) Electromagnetic device with frequency downconverter
CN207779546U (zh) 一种微型减振器
US8993864B1 (en) Support device for harmonica and microphone
US20160019818A1 (en) Listening lab kits and methods of making and using the same
Rust et al. Novel methods and services for microphone calibration at infrasound frequencies
WO2004106846A8 (en) Three-point extensometer
US20140215801A1 (en) Method of securing a musical instrument stand to a flat surface
CA2499232A1 (en) Universal microphone array stand
WO2007070541A3 (en) Radiation detection with change of resonant frequency
DE60315281D1 (de) Abschiessstand für feuerwerkskörper
WO2006134234A3 (en) Method for grinding a variable crown roll
JP6638470B2 (ja) マイクロホンの感度測定装置

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees