Microwave Autodyne Transceiver with Autoexcitation by Bias Voltage

Based on the variable load characteristics of a bulk effect oscillator , a new system of microwave autodyne transceiver is proposed. It characterizes the features of pulsed microwave oscillation with autoexciting bias voltage and thus possesses better anti-interference ability.The proccess of autoexcitation by bias voltage is analyzed in some detail , using a negative differential conductance algorithm for the bulk effect oscillator . The detection of doppler signal in the system is also discussed . ,