Design of a small size biquad-UWB-patch-antenna and signal processing for detecting respiration of trapped victims

In this contribution, we present an initial design of a small size Ultra-Wide-Band (UWB) antenna, which would be used as part of a semiautonomous flying platform for urban rescue of trapped victims. The antenna performance is experimentally investigated by conducting Step-Frequency-Continuous-Wave (SFCW) RADAR interrogation on a breathing human test subject. Measurements, made through a variety of common rubble materials further validate the system under development.