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SAR Analysis on the Coaxial-Slot Antenna for Hyperthermia  

Shin, Kook-Sun (Dept. of Computer and Communication Eng., Chungbuk Nat'l Univ.)
Shin, Ho-Sub (Dept. of Computer and Communication Eng., Chungbuk Nat'l Univ.)
Kim, Nam (Dept. of Computer and Communication Eng., Chungbuk Nat'l Univ.)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.13, no.7, 2002 , pp. 732-739 More about this Journal
Abstract
Performance of the applicator for hyperthermia is determined by both the degree of impedance matching and specific absorption rate(SAR) distribution in the surrounding tissue. In this paper, the coaxial-slot antenna using staircasing approximation in the FDTD is analyzed and the coaxial-slot antenna for the hyperthermia improving heating characteristics is designed. The SAR of the coaxial-slot antenna approximated to staircasing and square model is analyzed, and the SAR of staircasing model is compared with Saito's SAR measurement and square model. As a result, the SAR of proposed model exhibited agreement with the Saito's measurement of square model. Ig averaged SAR on the liver caused by proposed antenna in this paper is 195 W/kg, and is about 27.9 % higher than the Saito's antenna 152.5 W/kg, respectively.
Keywords
Hyperthermia; Coaxial-Slot Antenna; SAR (Specific Absorption Rate);
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Times Cited By KSCI : 1  (Citation Analysis)
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