Design of the wideband dual-mode bandpass filter using stepped impedance resonators

被引：5

作者：

Hung, Cheng-Yuan ^{[1
]}

Weng, Min-Hang ^{[2
]}

Jhong, Shilh-Bin ^{[3
]}

Wu, Sean ^{[1
]}

Lee, Maw-Shung ^{[3
]}

机构：

[1] Tung Fang Inst Technol, Dept Elect Engn & Comp Sci, Kaohsiung, Taiwan

[2] Natl Nano Device Labs, Tainan, Taiwan

[3] Natl Kaohsiung Univ Appl Sci, Dept & Inst Elect Engn, Kaohsiung, Taiwan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2008年 / 50卷 / 04期

关键词：

wideband; bandpass filter; microstrip; square ring resonator; dual mode; transmission zero;

D O I：

10.1002/mop.23281

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：

In this letter, a novel dual-mode bandpass filter (BPF) using stepped impedance resonators (SIRs) for simultaneous low insertion-loss and wide passband has been designed. This novel wideband dual-mode BPF is formed by a microstrip square ring resonator with direct-connected orthogonal feed lines, and two impedance steps as perturbations. By varying the impedance ratio (K) of the SIRs, the wideband bandwidth can be tuned with more freedoms. The design procedure using the analysis of even and odd mode is described in this paper. The wideband BPF with relative bandwidth of 76.5% is simulated using the full wave electromagnetic simulation, and then fabricated and measured using the network analyzer. (C) 2008 Wiley Periodicals, Inc.

引用

页码：1104 / 1107

页数：4

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