Development of D-Band Gunn Oscillator

摘要

Gunn oscillator has been developed at center frequency of 140 GHz with the output power of 7dBm using InP Gunn device. Resonant cap design approach was chosen due to its superiority in tunability and low FM noise. The Gunn Oscillator has been temperature cycled form 0°C to +50°C and a frequency stability of 200 KHz/°C was observed. The main use of this oscillator is as local oscillator especially in development of Radiometer for Imaging application