Design of Balanced Dual-Band Bandpass Filter with Self-Feedback Structure

被引：18

作者：

Chen, Xinwei

Han, Guorui

Ma, Runbo

Gao, Jiangrui

Zhang, Wenmei

机构：

[1] College of Physics and Electronics Engineering, Shanxi University, Shanxi

来源：

ETRI JOURNAL | 2009年 / 31卷 / 04期

基金：

美国国家科学基金会;

关键词：

Balanced; dual-band; SIR; open-loop resonator; common-mode suppression;

D O I：

10.4218/etrij.09.0209.0062

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 balanced dual-band bandbass filter based on lambda/2 stepped-impedance resonators and open-loop resonators a proposed in this letter By employing a type of self-feedback structure, an extra transmission zero is introduced near the common-mode resonance frequency, and the common-mode signal is suppressed. The measured results indicate that the filter can operate in 2.46 GHz and 5.6 GHz bands, and the insertion loss is 1.85 dB and 1.9 dB, respectively. Also, better common-mode suppression is achieved.

引用

页码：475 / 477

页数：3

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