2024-03-28T09:31:29Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00001775
2022-12-15T03:34:37Z
423:424:425
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SAR-Probe Calibration System Using Reference Dipole Antenna in Tissue-Equivalent Liquid
Ishii, Nozomu
Miyota, Yukihiro
Sato, Ken-ichi
Hamada, Lira
Watanabe, Soichi
Copyright(C)2012 IEICE
本文データは学協会の許諾に基づきEJサイトから複製したものである
specific absorption rate (SAR)
probe
calibration
tissue-equivalent liquid
two-antenna method
gain
The probe used in the conventional SAR measurement is usually calibrated in a well filled with tissue-equivalent liquid surrounded by a rectangular waveguide and a matching dielectric window in the frequency range from 800 MHz to 3 GHz. However, below 800 MHz, the waveguides are too large to be used for the calibration. Therefore, we have developed another technique of calibrating the SAR-probe, that is, relating the output voltage of the probe to the field intensity produced by a reference antenna in the tissue-equivalent liquid by using two-antenna method. In this paper, the calibration system using the reference dipole antennas in the liquid at 450 MHz, 900 MHz and 2450 MHz is presented and far-field gain of the reference antenna and calibration factor of the SAR-probe are measured and compared with those obtained by using the conventional waveguide system.
The Institute of Electronics, Information and Communication Engineers
2012-03
eng
journal article
VoR
http://hdl.handle.net/10191/30227
https://niigata-u.repo.nii.ac.jp/records/1775
http://doi.org/10.1587/transcom.e95.b.60
http://search.ieice.org/
AA10826261
0916-8516
IEICE transactions on communications
E95-B
1
60
68
https://niigata-u.repo.nii.ac.jp/record/1775/files/e95-b_1_60.pdf
application/pdf
1.9 MB
2019-07-29