Title :
Simulated near-field gain of dielectric-coated circular loop antennas operated in liquid and in HF band
Author :
Nozomu Ishii;Lira Hamada;Soichi Watanabe
Author_Institution :
Faculty of Engineering, Niigata University, Niigata, 950-2181 Japan
Abstract :
To evaluate specific absorption rate (SAR) in HF band using reference antenna method, dielectric-coated and shielded loop antenna operated in the liquid can be used. It is found that the electric and magnetic field intensity in the near-field region of the reference antenna behave like corresponding far-field if the near-field gain have a plateau as a function of the distance from the antenna. To simulate the perimeter of the loop with a plateau in its near-field gain using Richmond´s method of moments, the dielectric property of the cylindrically dielectric shell should be well given by using Lichtenecker´s logarithmic mixture law if the dielectric shell is made of heat-shrinkable tube.
Keywords :
"Decision support systems","Liquids","Indexes","Scattering","Frequency-domain analysis"
Conference_Titel :
RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2015 IEEE MTT-S 2015 International Microwave Workshop Series on
DOI :
10.1109/IMWS-BIO.2015.7303818