Design and development of a miniaturized coaxial probe for intracavitary application of hyperthermia at 434 MHz

Biological rationale of hyperthermia is well established and is being clinically practiced. However, endocavitary and interstitial hyperthermia treatments, in spite of the advantage of targeted heat delivery, are scarcely used especially at 434 MHz. In this paper, we investigate a folded monopole antenna for endocavitary hyperthermia applicator development. Based on the numerical simulations, a prototype applicator was fabricated by modifying 22 Fr Foley catheter. The return loss measurements of the fabricated applicator are in good agreement with the simulations.