Low Cost X-Band MIC BARITT Doppler Sensor

An MIC X-band BARITT self-mixing oscillator has been developed. A minimum detectable signal below carrier of - 139 dB/Hz at 100 kHz away from carrier was achieved at 1-mW signal carrier. A low cost, compact and sensitive hybrid MIC Doppler sensor module was constructed, incorporating the BARITT MIC circuit and a microstrip antenna.