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Circularly Rotated Array for Dual Polarized Applicator in Superficial Hyperthermia System

  • Kim, Ki Joon (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Choi, Woo Cheol (Department of Electrical and Electronic Engineering, Yonsei University) ;
  • Yoon, Young Joong (Department of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2014.10.16
  • Accepted : 2014.12.31
  • Published : 2015.01.30

Abstract

A circularly rotated array for a dual polarized applicator in a superficial hyperthermia system is proposed. The applicator has a wider effective treatment area due to the $180^{\circ}$ phase shift. The dual polarized circularly rotated array (DPCRA) suppresses overheating at the center of the array and helps evenly distribute the heat. This array provides a more effective treatment area than a lattice array when a $2{\times}2$ dual polarized array is fitted to the treatment area. The treatment area is 71.5% of the aperture, whereas the effective treatment areas of the $2{\times}2$ dual polarized lattice array (DPLA) and the single polarized array (SPA) are 57.2% and 38.6% of the same aperture, respectively. The measurement matches the simulation results without blood circulation effects. In a $2{\times}2$ array applicator, the proposed DPCRA has more heat uniformity than the DLA and the SPA.

Keywords

References

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