Thin Dielectric Lens Antenna for Hyperthermia Therapy Application

In microwave cancer therapy, cancer cells are destroyed using high heat. In this paper, a thin dielectric lens antenna was designed to heat up the cancer spot. The focusing ability of a 30 cm diameter lens was evaluated by an electromagnetic simulator, FEKO, at 2.45 GHz. A focusing spot size of 1.77 cm was assured. The temperature performance was calculated by the electromagnetic simulator, Computer Simulation Technology (CST) at 32 W of input power. The superficial surface of the human body model can be heated to 41.58 °C. The accuracy of the thin dielectric lens antenna designed has been verified.