Fast Switching X and Ku Band Multi Frequency Dielectric Resonator Oscillator Using a Single GaAs FET.

A novel scheme of generating fast-switchable, highly accurate and spurious-free stable signals at widely different frequencies is presented. Using a single GaAs FET oscillator circuit and switching the dielectric resonators through PIN diodes, an efficient and high performance four-switchable frequency DRO assembly has been realized. Settling times of less than 2 µs, in which the output frequency is within +- 10 ppm of the final frequency, have been achieved.