Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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The Improvement of Characteristics of The Applicator Using Semi-rigid Coaxial Cable Antenna for RFA

반강체 동축케이블 안테나를 이용한 RFA용 어플리케이터의 특성 개선

  • 강철준 (조선대학교 대학원) ;
  • 박성교 (조선대학교 전자정보공과대학 전자ㆍ정보통신공학부) ;
  • 김선호 (조선대학교 대학원) ;
  • 박종백 (조선대학교 전자정보공과대학 전자ㆍ정보통신공학부)
  • Published : 2003.11.01
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Abstract

Radiofrequency ablation (RFA) as one of the microwave hyperthermia is becoming the treatment of choice for small but inoperable tumors of the liver. In this paper, we designed the applicator composed of semi-rigid coaxial cable antenna with a ring slot for RFA. To optimize the maximum output of radiation with omni direction at 2450 ㎒, we simulated the applicator using Electromagnetic simulation program and analyzed the return loss and the electric field E$\_$tot/ at the near-field region between the simulation results and measurement results. As a result, we obtained the return loss of -29.786 dB at 2450 ㎒ when the applicator was placed between two blocks of a pig's liver, and the measurement results agreed with the simulation results well. Therefore, this applicator using semi-rigid coaxial cable antenna with a ring slot can be used very usefully as the applicator for RFA.

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