DocumentCode :
3758343
Title :
Numerical simulation of calibrating magnetic field intensity of small circular loop antenna in liquid
Author :
Nozomu Ishii;Lira Hamada;Soichi Watanabe
Author_Institution :
National Institute of Information and Communications Technology (NICT), Koganei, Tokyo, Japan
fYear :
2015
Firstpage :
1
Lastpage :
4
Abstract :
To calibrate an electric field prove for evaluating specific absorption rate (SAR) of wireless devices operated in the MHz band, we have proposed the use of circular loop antenna immersed in tissue-equivalent liquid. In our proposed method, near-field gain of the loop antenna should be evaluated to estimate the fields radiated by the loop antenna. However, there is a serious problem that its size which can determined as the near-field gain is constant in its neighborhood is much larger than a liquid container as the frequency is lower, for example, at 6.78MHz. In this paper, we focus on estimating antenna factor for transmitting loop antenna and we examine that the distance property of the small circular loop antenna in the liquid can be estimated in its neighborhood with the antenna factor for transmitting loop antenna by using the method of moments.
Keywords :
"Transmitting antennas","Magnetic liquids","Magnetic properties","Method of moments","Antenna measurements","Wireless communication"
Publisher :
ieee
Conference_Titel :
Antenna Measurements & Applications (CAMA), 2015 IEEE Conference on
Type :
conf
DOI :
10.1109/CAMA.2015.7428138
Filename :
7428138
Link To Document :
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