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同轴腔体窄带带阻滤波器的研制 被引量:1

Development of coaxial cavity narrow bandstop filter
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摘要 采用盘耦合形式的同轴方形谐振腔结构,设计了一款中心频率为932 MHz,阻带带宽4 MHz,阻带抑制–55dB的窄带带阻滤波器。在同轴腔结构与传输线之间引入耦合盘构成带阻滤波单元,使用Designer与HFSS软件对电路模型与3D结构模型进行仿真优化,最后根据仿真模型进行加工测试。实测结果与仿真结果基本吻合,在阻带边缘具有良好的边缘陡峭度。该滤波器结构简单,易调谐。 A coupled coaxial square cavity resonator structure was applied to design a narrow bandstop filter, with a center frequency of 932 MHz, a stopband bandwidth of 4 MHz and stopband attenuation of -55 dB. The unit of the bandstop filter was implemented with introducing a coupled disc between the resonator and the mainline. Optimized simulations on circuit model and 3D model were obtained by software of Designer and HFSS, on this basic a physical filter was manufactured and measured. The measured results show a good agreement with simulation results and fine edge steepness in stopband edge. Moreover, the filter has simple structure, easy-tuning.
作者 孔博 叶强
出处 《电子元件与材料》 CAS CSCD 北大核心 2014年第3期49-53,共5页 Electronic Components And Materials
基金 杭州市重大科技资助项目(No.20112311A57)
关键词 滤波器 同轴腔 窄带 带阻 耦合电容 Q值 filter coaxial cavity narrow-band bandstop coupled capacitor Q value
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参考文献9

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