Abstract
Hyperthermia is the most recent therapy in investigating the biological effects and applications of microwaves for treatment of cancer and tumour. It refers to an artificial heating above 45°C in order to cure cancer. Various antennas like slot antenna, loop antenna, dipole antenna and patch antenna etc. are used as Hyperthermia applicators for damaging and killing cancerous cells from the body. In this paper, an annular patch antenna operating at 434 MHz has been use as applicator. A simple planar three layer phantom model has been used to examine the effect of applicator at varying distances from the body. The Specific Absorption Rate and return loss are computed and compared at different distance of antenna from body. Finite Element Method is used to generate the model and predict the absorbed energy.
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