Design of a 5.305 GHz Dielectric Resonator Oscillator with Simulation and Optimization

The design of a 5.305 GHz series feedbackfree running dielectric resonator oscillator (DRO) ispresented. Its simulation and optimization are realizedby obtaining the unloaded Q factor of the cavitydielectric resonator (DR) and analyzing the linear andnonlinear models of the DRO. CAD packages ofDR_Rez and Agilent Advance Design System (ADS) areused and the best tradeoff among the output power,phase noise, and frequency stability is achieved. With the result of simulation, a physical oscillator prototype isconstructed. The measured results show the goodagreement with those of simulation.