无线电工程Issue(3)：58-61,4.DOI:10.3969/j.issn.1003-3106.2015.03.16
两端短路同轴腔调谐滤波器耦合系数分析
Analysis of Coupling Coefficient for Coaxial Tunable Filter with Short-circuited Ends
摘要
Abstract
Thetuning sensitivity requirement of coaxial cavity tunable filter with 1/4 wavelength at high frequency band is becom⁃ing higher and higher due to the shortening of tuning trip;and coaxial cavity filter with short⁃circuited ends can lower the tuning sensi⁃tivity requirement effectively by doubling the tuning trip.The coupling coefficient between two resonant cavities is an important parameter in the design of bandpass filter,which directly influences the bandwidth of the filter.The paper analyzes the coupling coefficient change of the resonant cavity with short⁃circuited endsdepending on theposition and size of the coupling window.Through the simulation and cal⁃culation of the size and position of window changesby HFSS software,the changing rule of the coupling coefficient is obtained,which provides a foundation for the design of relevant filters.关键词
两端短路/同轴谐振腔/耦合系数/调谐Key words
short-circuited ends/coaxial resonant cavity/coupling coefficient/tuning分类
信息技术与安全科学引用本文复制引用
褚素杰,李春红,韩军..两端短路同轴腔调谐滤波器耦合系数分析[J].无线电工程,2015,(3):58-61,4.基金项目
国家部委基金资助项目。 （）
