Size reduction of a double-ridged horn antenna for a bistatic radar-based breast imaging system

摘要

A physically small - sized double-ridged horn antenna is presented for use as an array element in the Subsurface Radar (SR) system. The miniaturization is achieved by loading the antenna with a very high-permittivity material and also by reducing the flare length in the horn section. The effects of size reduction on the reflection and transmission response of the antenna are studied.