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针对X波段串联和并联两种结构的反馈式介质振荡器(DRO)进行了较深入的研究,并介绍了一种通用的介质振荡器设计方法,设计、实现了这两种反馈式介质振荡器,实验表明该设计方法简单可行。首先运用电磁感应理论简要介绍介质谐振器应用于微波电路的基本原理,阐述了影响介质振荡器相位噪声、稳定度等性能的关键因素,并分别运用负阻和反馈理论对串联和并联两种反馈式介质振荡器的拓扑结构进行了详尽的分析。然后选用相同的介质谐振器和有源器件,运用仿真软件HFSS和ADS设计这两种结构的振荡器,并结合设计过程详细地介绍了设计方法,最后分析仿真结果和实测数据,总结了串、并联反馈式振荡器各自的特点。
Aiming at the two kinds of structures of the feedback media oscillator (DRO), which are connected in series and in parallel, the X-band is studied deeply. A general design method of the dielectric oscillator is introduced. The two kinds of feedback media oscillators Experiments show that the design method is simple and feasible. Firstly, the basic principle of dielectric resonator applied to microwave circuit is briefly introduced by using electromagnetic induction theory. The key factors that influence the phase noise, stability and other properties of dielectric oscillator are expounded. Negative resistance and feedback theory are used respectively for the feedback of series and parallel feedback Type dielectric oscillator topology detailed analysis. Then using the same dielectric resonators and active devices, using the simulation software HFSS and ADS to design the two structure of the oscillator, combined with the design process describes the design method in detail, and finally analyze the simulation results and measured data, summed up the string, Shunt feedback oscillator their own characteristics.