一种带有寄生通带抑制结构的滤波器设计

Abstract

Abstract:

This paper designs a parallel-coupled microstrip bandpass filter.It employs half-wave open-ended resonators in view of the 2^nd and the 3^rd harmonic passband responses and introduces transmission zeros so as to have a suppressing effect on the spurious passband at the 2^nd and 3^rdharmonics frequency.The method can increase the suppression by 20 dB and over 10 dB on the spurious passband at the 3^rd and 2^nd harmonic responses,respectively,without major structure modification.

Key words: parallel-coupled microstrip bandpass filter;half-wave open-ended resonator;harmonic suppression;spurious passband

CLC Number:

TN713

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WANG Yong, CAI Fei, LV Guo-Qiang. Design of a Filter with Spurious PassBand Suppression Configuration[J]., 2010, 23(9): 24-.

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URL: https://journal.xidian.edu.cn/dzkj/EN/

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References

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［3］Lopetegi T,Laso M A G,Falcone F,et al.Microstrip “Wiggly-line” Bandpass Filters with Multispurious Rejection［J］.IEEE Microwave Wireless Compon.Lett,2004,14(1):531-533

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［5］陈振国.微波技术基础与应用［M］.北京:北京邮电大学出版社,1996.

［6］吴万春.现代微波滤波器的结构与设计［M］.北京:科学出版社,1973.

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