Ultra-wideband miniaturised high permittivity-matched antennas for biomedical diagnostic

Ultra-wideband imaging has widely proven its potential for biomedical diagnostics. Especially for imaging applications, the miniaturisation of the antennas plays a key role due to the necessity to arrange a high number of sensors around the target under investigation. We have invented, developed, and evaluated dielectrically scaled compact ceramic double-ridged horn antennas. Recently measured results in the frequency domain are presented, in comparison with simulations to validate the design approach and the manufacturing process. Since the antenna is supposed to be used in time domain - based applications, the impulse response, derived from frequency domain measurements, is also presented.