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Vol. 161, Issue 12, December 2013, pp. 170-174




The Comparison of the Three Coaxial-slot Antenna for Invasive Microwave Hyperthermia Therapy
Teng Jiao, Yang Zhang, Xiao Yu, Hao Lv, Huijun Xue, Jianqi Wang

Department of Biomedical Engineering, The Fourth Military Medical University Xi'An 710032, China


Received: 25 September 2013   /Accepted: 22 November 2013   /Published: 30 December 2013

Digital Sensors and Sensor Sysstems


Abstract: Electromagnetic heating method has a wide range of applications in engineering field, the technique of invasive microwave hyperthermia is applied to cancer treating, the distribution of microwave thermal field and the effect of the therapy are determined by the type of microwave radiative antenna. The thermal field of biological tissue produced by microwave radiative antenna is investigated in this paper. The distribution of thermal field and specific absorption rate (SAR) of three invasive coaxial-slot antenna in the frequency of 2450 MHz are obtained by the technique of finite element analysis. According to the experiment of heating the exvivo pork liver by this three kind of antenna, the result concordant with the theory is obtained. Therefore, it is suggested that this research could be a reference for clinical therapy and operation scheme.


Keywords: Microwave hyperthermia therapy, Antenna, Thermal field, SAR.


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