Based On The Technology Of Sampling Phase-locked And Drvco X-band Microwave Frequency Source

Sampling phase-locked technology and dielectric oscillator technology based on dielectric resonator are hot topics in recent years。 A well performance microwave frequency source can be achieved via conjunctive using two technology mentioned above. This paper simulated and fabricated an X-band dielectric resonator oscillator by means of open loop S parameter design method and group delay optimization. In addition the sampling phase locked technology was also investigated to a certain degree.This paper introduced the development of microwave frequency source at home and abroad firstly and then introduced the basic principle of oscillator and the method of designing a dielectric resonator oscillator (DRO).We investigated the dielectric resonator with support, explained its principle and the measuring method of loaded Q. Also a method was derived to obtain the best value of loaded Q by employing the group delay parameter.By using the conclusion comes from theoretical analysis, a8.7GHz parallel feedback dielectric resonator oscillator with source output based on the open loop S parameter design method, accurate modeling in HFSS and harmonic balance simulation in ADS was designed. A DRO was fabricated and measured with the performance of4.33dBm output power,-96.28dBc/Hz@10KHz and-112.9dBc/Hz@100KHz phase noise.This paper also investigated the sampling phase-locked technique and designed a8.7GHz sampling phase-locked loop. By co-simulated with the dielectric resonator voltage controlled oscillator (DRVCO), some useful experience and understanding were obtained.