Burst electromagnetic wave focusing system for medical application

Inducing apoptosis in malignant cells and controlling ES cell differentiation using subnanosecond high voltage pulses have previously been investigated, and results encouraged these authors to develop a high power burst electromagnetic wave focusing system for apoptosis induction in cancer cells. This system consists of a transmitting antenna and an ellipsoidal reflector which focuses radiation waves. The ellipsoidal reflector has the characteristic of focusing the burst electromagnetic waves radiated from the first focal point to the second focal point, thus enhancing the electric field at the second focal point. This system is immersed in heated water to avoid permittivity mismatch between living tissue and the medium in which electromagnetic waves propagate, thereby reducing the reflection and refraction at the surface of living tissue and focusing more accurately the burst electromagnetic waves on the second focal point. This paper presents the experimental and simulated results so as to compare antennas to radiate the burst electromagnetic wave to living tissue.