谐振腔带通滤波器性能研究

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摘要:基于耦合矩阵设计谐振腔带通滤波器是广泛采用的技术,文章给出了滤波器的S参数及群时延与包含损耗因素的耦合矩阵之间的关系,分析了滤波器谐振腔的无载品质因数Qu值(即谐振腔的损耗因素)对滤波器S参数及群时延性能的影响,给出的一个加工的滤波器实例用于验证文章的分析。
关键词:滤波器;耦合矩阵;S参数;群时延
doi:10.3969/J.ISSN.1672-7274.2022.05.006
中图分类号:TN713.5 文献标示码:A 文章编码:1672-7274(2022)05-00-03
Study on the Performance of Resonator Bandpass Filter
WANG Rui,LI Lezhong
(School of Optoelectronic Engineering, Chengdu University of information engineering, Chengdu 610225, China)
Abstract: The design of resonant cavity bandpass filter based on coupling matrix is a widely used technology. This paper gives the relationship between the S parameter of the filter, the group delay and the coupling matrix including loss factor. The influence of the unloaded quality factor Qu of the filter resonator (i.e. the loss factor of the resonator) on the S-parameter and group delay performance of the filter is analyzed. A processed filter example is given to verify the analysis in this paper.
Key words: filter; coupling matrix; sparameter; group delay
作者简介:王瑞(1980-),男,汉族,博士,主要研究方向为微波、毫米波电路与器件及太赫兹技术。(剩余3473字)