Frequency shift mixer on Gunn diode with cathode static domain

This paper considers the possibility of effective design of frequency shift mixers (FSM), based on Gunn diodes with non-uniform electron distribution in the cathode. The electron transition frequency is 2-3 times lower than that of the input signal. One of the main merits of the researched FSM is the possibility of carrier frequency suppression under certain values of bias voltage and impedance of transmission line, containing the Gunn-diode.