Presentation 2010/9/2
Electric Field Distribution Produced by a Waveguide Aperture in Homogeneous Lossy Medium
Nozomu ISHII, Kenichi SATO, Yukihiro MIYOTA, Lira HAMADA, Soichi WATANABE,
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Abstract(in English) We focus on a novel calibration technique for an electric-field probe used in the standard evaluation of SAR (specific absorption rate) for mobile communication devices, in which we use the electric field distribution produced by a waveguide aperture operated in the tissue-equivalent liquid. In this report, we analytically derive an approximate expression for the electric field distribution near the waveguide aperture in the homogeneous lossy medium if the aperture is excited by its TE mode. The formulation is validated by measuring the electric-field distribution with a probe scanned in the liquid for the SAR evaluation at the frequency of 5200MHz. Moreover, we can find that measured CF (calibration factor) of the probe in our proposed probe calibration technique is well agreement with the manufacturer-supplied CF.
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Keyword(in English) SAR / probe calibration / tissue-equivalent liquid / waveguide aperture / paraxial approximation
Paper # A・P2010-67
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Committee AP
Conference Date 2010/9/2(1days)
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Registration To Antennas and Propagation (A・P)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Electric Field Distribution Produced by a Waveguide Aperture in Homogeneous Lossy Medium
Sub Title (in English)
Keyword(1) SAR
Keyword(2) probe calibration
Keyword(3) tissue-equivalent liquid
Keyword(4) waveguide aperture
Keyword(5) paraxial approximation
1st Author's Name Nozomu ISHII
1st Author's Affiliation Faculty of Engineering, Niigata University()
2nd Author's Name Kenichi SATO
2nd Author's Affiliation NTT Advanced Technology
3rd Author's Name Yukihiro MIYOTA
3rd Author's Affiliation NTT Advanced Technology
4th Author's Name Lira HAMADA
4th Author's Affiliation National Institute of Information and Communications Technology
5th Author's Name Soichi WATANABE
5th Author's Affiliation National Institute of Information and Communications Technology
Date 2010/9/2
Paper # A・P2010-67
Volume (vol) vol.110
Number (no) 196
Page pp.pp.-
#Pages 6
Date of Issue