The design of a 5.305 GHz series feedback free running dielectric resonator oscillator （DRO） is presented. Its simulation and optimization are realized by obtaining the unloaded Q factor of the cavity dielectric res...The design of a 5.305 GHz series feedback free running dielectric resonator oscillator （DRO） is presented. Its simulation and optimization are realized by obtaining the unloaded Q factor of the cavity dielectric resonator （DR） and analyzing the linear and nonlinear models of the DRO. CAD packages of DR_Rez and Agilent Advance Design System （ADS） are used and the best tradeoff among the output power, phase noise, and frequency stability is achieved. With the result of simulation, a physical oscillator prototype is constructed. The measured results show the good agreement with those of simulation.展开更多
The coupling between dielectric resonator (DR) and microstrip is theoretically analyzed in thispaper.The equivalent circuit and corresponding components' expression are achieved.Also,the formula of thecoupling rat...The coupling between dielectric resonator (DR) and microstrip is theoretically analyzed in thispaper.The equivalent circuit and corresponding components' expression are achieved.Also,the formula of thecoupling ratio is deduced,which is the critical parameter to calculate the values of components.The analysis of thepaper can be used in modeling and strict design in DR applications such as dielectric resonator oscillators(DROs)and DR filters.At the end of the paper,an example of DRO design based on the analysis above is given.Thecoincidence between modulation and measure shows the significance of the paper.展开更多
文摘The design of a 5.305 GHz series feedback free running dielectric resonator oscillator （DRO） is presented. Its simulation and optimization are realized by obtaining the unloaded Q factor of the cavity dielectric resonator （DR） and analyzing the linear and nonlinear models of the DRO. CAD packages of DR_Rez and Agilent Advance Design System （ADS） are used and the best tradeoff among the output power, phase noise, and frequency stability is achieved. With the result of simulation, a physical oscillator prototype is constructed. The measured results show the good agreement with those of simulation.
基金Supported by National ChuangXin Foundation for Enterprises
文摘The coupling between dielectric resonator (DR) and microstrip is theoretically analyzed in thispaper.The equivalent circuit and corresponding components' expression are achieved.Also,the formula of thecoupling ratio is deduced,which is the critical parameter to calculate the values of components.The analysis of thepaper can be used in modeling and strict design in DR applications such as dielectric resonator oscillators(DROs)and DR filters.At the end of the paper,an example of DRO design based on the analysis above is given.Thecoincidence between modulation and measure shows the significance of the paper.
