CA2421821A1 - Apparatus for measuring absorbed power - Google Patents

Apparatus for measuring absorbed power Download PDF

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Publication number
CA2421821A1
CA2421821A1 CA002421821A CA2421821A CA2421821A1 CA 2421821 A1 CA2421821 A1 CA 2421821A1 CA 002421821 A CA002421821 A CA 002421821A CA 2421821 A CA2421821 A CA 2421821A CA 2421821 A1 CA2421821 A1 CA 2421821A1
Authority
CA
Canada
Prior art keywords
head
simulates
human body
configuration
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.)
Granted
Application number
CA002421821A
Other languages
French (fr)
Other versions
CA2421821C (en
Inventor
Takahiro Iyama
Yoshiaki Tarusawa
Shinji Uebayashi
Toshio Nojima
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.)
NTT Docomo Inc
Original Assignee
Ntt Docomo, Inc.
Takahiro Iyama
Yoshiaki Tarusawa
Shinji Uebayashi
Toshio Nojima
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 Ntt Docomo, Inc., Takahiro Iyama, Yoshiaki Tarusawa, Shinji Uebayashi, Toshio Nojima filed Critical Ntt Docomo, Inc.
Priority to CA002550158A priority Critical patent/CA2550158C/en
Publication of CA2421821A1 publication Critical patent/CA2421821A1/en
Application granted granted Critical
Publication of CA2421821C publication Critical patent/CA2421821C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

Abstract

In an apparatus for measuring absorbed power including an electromagnetic field probe 1 fixedly mounted within a head simulation phantom 2 which simulates the configuration and the electromagnetic characteristics of a head of a human body, and wherein the strength of an electric field or a magnetic field of a radio wave externally irradiated upon the head simulation phantom 2 is measured by the electromagnetic field probe 1, and the power of the radio wave absorbed by the head is estimated on the basis of measured values, the head simulation phantom 2 comprises a solid dielectric 10' which simulates the configuration and the electromagnetic characteristics of a head of a human body or a liquid dielectric 10 which simulates the electromagnetic characteristics of a head of a human body and which is filled in an enclosed vessel 10 which simulates the configuration of a head of a human body. The volume of the solid dielectric 10' or the volume of the enclosed vessel 11 is equal to or less than 5 x 10 5 mm3.
CA002421821A 2001-08-08 2002-08-08 Apparatus for measuring absorbed power Expired - Fee Related CA2421821C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002550158A CA2550158C (en) 2001-08-08 2002-08-08 Apparatus for measuring absorbed power

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2001240926 2001-08-08
JP2001-240926 2001-08-08
JP2002068521 2002-03-13
JP2002-68521 2002-03-13
PCT/JP2002/008125 WO2003014717A1 (en) 2001-08-08 2002-08-08 Absorption power measuring device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002550158A Division CA2550158C (en) 2001-08-08 2002-08-08 Apparatus for measuring absorbed power

Publications (2)

Publication Number Publication Date
CA2421821A1 true CA2421821A1 (en) 2003-03-07
CA2421821C CA2421821C (en) 2007-07-31

Family

ID=26620199

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002421821A Expired - Fee Related CA2421821C (en) 2001-08-08 2002-08-08 Apparatus for measuring absorbed power

Country Status (6)

Country Link
US (2) US7186377B2 (en)
EP (2) EP2199811B1 (en)
JP (1) JP3809166B2 (en)
CN (2) CN1277115C (en)
CA (1) CA2421821C (en)
WO (1) WO2003014717A1 (en)

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WO2003014717A1 (en) * 2001-08-08 2003-02-20 Ntt Docomo, Inc. Absorption power measuring device
US20030179149A1 (en) 2001-11-26 2003-09-25 Schlumberger Electricity, Inc. Embedded antenna apparatus for utility metering applications
FR2859064B1 (en) * 2003-08-18 2005-12-30 Satimo Sa DEVICE FOR CONTROLLING THE SPECIFIC ABSORPTION RATE OF RADIANT OBJECTS MADE IN SERIES AND IN PARTICULAR PORTABLE TELEPHONES
CN100443889C (en) * 2004-07-05 2008-12-17 株式会社Ntt都科摩 Measurement system of specific absorption rate
JP5554463B2 (en) * 2004-07-05 2014-07-23 株式会社Ｎｔｔドコモ Specific absorption rate measuring device
JP2006132970A (en) * 2004-11-02 2006-05-25 Ntt Docomo Inc System and method for measuring specific absorption rate
US7921741B2 (en) * 2004-12-15 2011-04-12 Motorola Mobility, Inc. Electromagnetic testing model of human hand
US20060199159A1 (en) * 2005-03-01 2006-09-07 Neuronetics, Inc. Head phantom for simulating the patient response to magnetic stimulation
JP4127838B2 (en) * 2005-03-31 2008-07-30 株式会社東芝 Electromagnetic field probe
US8502546B2 (en) * 2006-04-05 2013-08-06 Emscan Corporation Multichannel absorberless near field measurement system
US7843391B2 (en) * 2006-09-15 2010-11-30 Itron, Inc. RF local area network antenna design
JP5669337B2 (en) 2006-10-23 2015-02-12 株式会社Ｎｔｔドコモ System and method for measuring specific absorption rate
WO2008051125A1 (en) * 2006-10-27 2008-05-02 Telefonaktiebolaget Lm Ericsson (Publ) Rapid absorption measurement
CN1964547A (en) * 2006-11-30 2007-05-16 中兴通讯股份有限公司 A method to determine minimum test distance of antenna
JP4819663B2 (en) * 2006-12-13 2011-11-24 株式会社エヌ・ティ・ティ・ドコモ Complex permittivity measuring apparatus and complex permittivity measuring method
US8301133B2 (en) 2006-12-20 2012-10-30 Research In Motion Limited Method and system for conducting hearing aid compatibility testing of a mobile communication device
DE102007007686A1 (en) * 2007-02-16 2008-08-21 Forschungszentrum Jülich GmbH phantom
US20080261584A1 (en) * 2007-04-23 2008-10-23 Research In Motion Limited Method and system for conducting specific absorption rate testing of a mobile communication device
FR2932894B1 (en) * 2008-06-23 2010-09-24 Satimo Sa IMPROVEMENTS IN THE DETERMINATION OF AT LEAST ONE SIZE ASSOCIATED WITH THE ELECTROMAGNETIC RADIATION OF AN OBJECT UNDER TEST.
CA2752570C (en) 2009-03-03 2016-01-26 Ntt Docomo, Inc. Absorbed power measuring method, local average absorbed power measuring method, local average absorbed power calculating apparatus, and local average absorbed power calculating program
JP5619560B2 (en) * 2010-10-13 2014-11-05 Ｔ＆Ａ株式会社 Local SAR measuring device and planar light phantom used therefor
US9759693B2 (en) * 2012-12-20 2017-09-12 International Business Machines Corporation Method of simulating the absorption of plane waves using FEM software tools
JP2013101140A (en) * 2013-01-21 2013-05-23 Ntt Docomo Inc Specific absorption rate measurement system and method
CA2977651A1 (en) * 2015-02-24 2016-09-01 Zte (Usa) Inc. Methods and user equipment for measuring the radiated power of a wireless device proximate to a phantom
WO2016140870A2 (en) * 2015-03-02 2016-09-09 Zte (Usa) Inc. Methods for using a hand phantom for evaluating tablets in a wireless communication system
FR3039282B1 (en) * 2015-07-24 2020-12-25 Univ Rennes DEVICE FOR ELECTROMAGNETIC DOSIMETRY AND ASSOCIATED METHOD
IT201600079679A1 (en) * 2016-07-28 2018-01-28 Technoprobe Spa Measurement board for electronic devices
RU2665357C1 (en) * 2017-08-07 2018-08-29 Акционерное общество "Научно-производственное предприятие "Алмаз" (АО "НПП "Алмаз") Electromagnetic wave in the shf devices slowing structures film local absorbers differential attenuation discrete measurement method with long-term interaction
CN109142458A (en) * 2018-08-26 2019-01-04 昆山亿趣信息技术研究院有限公司 A kind of SAR test tissue simulated solution
CN109752601B (en) * 2018-12-06 2021-07-06 兰州空间技术物理研究所 Device for measuring dynamic characteristics of wall surface charges of discharge chamber of ion thruster
JP7407073B2 (en) * 2020-06-03 2023-12-28 富士フイルムヘルスケア株式会社 Test equipment, test methods and phantoms
EP4170360A1 (en) 2021-10-22 2023-04-26 Université de Rennes 1 Phantom device and electromagnetic dosimetry system associated
CN114818412B (en) * 2022-03-18 2022-09-27 北京航空航天大学 High-precision calculation method for electromagnetic radiation of human brain

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JP2737661B2 (en) * 1994-09-21 1998-04-08 日本電気株式会社 SAR measuring method and SAR measuring device
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JP2790103B2 (en) * 1995-12-15 1998-08-27 日本電気株式会社 Specific absorption rate measuring device and specific absorption rate measuring method
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JPH10311805A (en) * 1997-05-09 1998-11-24 N T T Ido Tsushinmo Kk Absorbed power measuring device and method for calibrating the same
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KR20000004195A (en) * 1998-06-30 2000-01-25 윤종용 Apparatus for automatically testing a mobile telephone
CA2300303A1 (en) 1998-07-14 2000-01-27 Deutsche Telekom Ag Apparatus for measuring the specific absorption rate
JP2001124707A (en) * 1999-10-28 2001-05-11 Mokuzai Kanso Teicostka Gijutsu Kenkyu Kumiai Method and device for measuring moisture of wood
WO2001086311A1 (en) * 2000-05-05 2001-11-15 Integra Antennas Ltd A head phantom arrangement and method of measuring of affect of electromagnetic waves by means of this head phantom
US6329953B1 (en) * 2000-09-29 2001-12-11 Rangestar Wireless Method and system for rating antenna performance
WO2002056041A1 (en) * 2001-01-16 2002-07-18 Telefonaktiebolaget Lm Ericsson (Publ) A chamber for and a method of processing electronic devices and the use of such a chamber
WO2003014717A1 (en) * 2001-08-08 2003-02-20 Ntt Docomo, Inc. Absorption power measuring device
US6919845B2 (en) * 2002-04-22 2005-07-19 Matsushita Electric Industrial Co., Ltd. Apparatus for measuring specific absorption rate based on near magnetic field for use in radio apparatus

Also Published As

Publication number Publication date
EP1326070A4 (en) 2005-02-02
EP1326070B1 (en) 2013-07-10
CN1277115C (en) 2006-09-27
EP2199811A1 (en) 2010-06-23
US7186377B2 (en) 2007-03-06
US7615188B2 (en) 2009-11-10
CA2421821C (en) 2007-07-31
CN1473268A (en) 2004-02-04
CN1651907A (en) 2005-08-10
WO2003014717A1 (en) 2003-02-20
JPWO2003014717A1 (en) 2004-11-25
JP3809166B2 (en) 2006-08-16
CN100422726C (en) 2008-10-01
EP2199811B1 (en) 2013-01-09
US20040102694A1 (en) 2004-05-27
US20060172432A1 (en) 2006-08-03
EP1326070A1 (en) 2003-07-09

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Effective date: 20150810