High Selectivity and Wide-Stopband Quintuple-Mode Bandpass Filter with Multiple Transmission Zeros

被引：2

作者：

Liu, H. W. ^{[1
]}

Li, S. ^{[1
]}

机构：

[1] East China Jiaotong Univ, Coll Informat Engn, Nanchang 330013, Peoples R China

来源：

ELECTROMAGNETICS | 2015年 / 35卷 / 06期

基金：

美国国家科学基金会;

关键词：

transmission zero; quintuple-mode resonator; bandpass filter; RESONATOR; DESIGN;

D O I：

10.1080/02726343.2015.1053350

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A compact multi-mode bandpass filter with high selectivity and a wide stopband is proposed in this article. The quintuple-mode resonator is proposed by introducing a triple-mode resonator into a dual-mode resonator. Due to the intrinsic characteristic of the proposed resonator, two transmission zeros are created at both sides of the passband for enhancing selectivity. Furthermore, two transmission zeros are generated by the input and output feed lines, leading to sharp skirts and a wide stopband. The simulated responses show a 3-dB fractional bandwidth of 25.8% at the central frequency (2.4 GHz). Measurement results agree well with the simulated results.

引用

页码：386 / 392

页数：7

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