A NOVEL DUAL-MODE BANDPASS FILTER USING STUB-LOADED DEFECTED GROUND OPEN-LOOP RESONATOR

被引：6

作者：

Guan, X. ^{[1
]}

Wang, B. ^{[1
]}

Wang, X. -Y. ^{[1
]}

Wang, S. ^{[1
]}

Liu, H. ^{[1
]}

机构：

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

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2011年 / 26卷

基金：

新加坡国家研究基金会;

关键词：

Bandpass filters - Bandwidth - Defected ground structures;

D O I：

10.2528/PIERL11071402

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 novel dual-mode bandpass filter (BPF) using stub loaded defected ground open-loop resonator is proposed in this article. Defected arrow-shaped stub is loaded to a defected ground open loop resonator, and two non-degenerate modes are excited for dual mode characteristics. Based on even- and odd-mode theory, dual mode characteristics of the resonator is analyzed. Design equations for the defected-ground resonator are investigated. A two-pole dual mode bandpass filter operating at 2.4 GHz with fractional bandwidth of 7.97% is designed, fabricated, and measured. Good agreement between simulated and measured results verifies the validity of this design methodology.

引用

页码：31 / 37

页数：7

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