A 2-GHz multiple Gunn device logic circuit

A logic circuit is described which employs interaction between two Gunn devices to achieve a symmetrical bimodal form of operation. Experimental results with a 2-GHz circuit indicate extremely high switching speed and an input sensitivity of less than a few hundred mV. The ease of interfacing this circuit with conventional solid-state circuits is also reported. The reduced interfacing problem suggests a wide variety of applications.