Title
A Novel Sar-Probe Calibration Method Using A Waveguide Aperture In Tissue-Equivalent Liquid
Abstract
A novel method for calibrating the probes used in standard measurement systems to evaluate SAR (specific absorption rate) of the radio equipment operating at frequencies over 3 GHz is proposed. As for the proposed method, the electric-field distribution produced by a waveguide aperture installed in a liquid container is used to calibrate the SAR probe. The field distribution is shown to be the same as that given by a conventional calibration method by analytically deriving a closed-form expression for the field produced by the waveguide aperture with the help of the paraxial approximation. Comparing the approximated and measured distributions reveals that the closed-form expression is valid for the electric-field distribution near the central axis of the aperture. The calibration factor for a commercial SAR probe is evaluated by the proposed method and agrees well with that provided by the manufacturer of the probe.
Year
DOI
Venue
2014
10.1587/transcom.E97.B.2035
IEICE TRANSACTIONS ON COMMUNICATIONS
Keywords
Field
DocType
specific absorption rate (SAR), probe calibration, tissue-equivalent liquid, waveguide aperture
Aperture,Radio equipment,Specific absorption rate,Paraxial approximation,Waveguide aperture,System of measurement,Computer science,Optics,Calibration,Distributed computing
Journal
Volume
Issue
ISSN
E97B
10
1745-1345
Citations 
PageRank 
References 
0
0.34
1
Authors
3
Name
Order
Citations
PageRank
Nozomu Ishii174.46
Lira Hamada263.81
Soichi Watanabe31315.03