COMPACT LOWPASS FILTER WITH HIGH SELECTIVITY USING G-SHAPED DEFECTED MICROSTRIP STRUCTURE

被引：12
|
作者：
Cao, H. [1 ,2 ]
Guan, W. [1 ]
He, S. [1 ]
Yang, L. [1 ,2 ]
机构：
[1] Chongqing Univ, Ctr Commun & Tracking Telemetering & Command, Chongqing 400044, Peoples R China
[2] Minist Educ China, Key Lab Aerocraft Tracking Telemetering & Command, Chongqing 400044, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2012年 / 33卷
基金：
中国国家自然科学基金;
关键词：
D O I：
10.2528/PIERL12051412
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 paper, a novel G-shaped defected microstrip structure (DMS) is presented. Compared with the conventional DMS, the proposed G-shaped DMS exhibits lower resonant frequency and wider stopband. A lowpass filter with 3 dB cutoff frequency at 3.17 GHz using four pairs of parallel cascaded G-shaped DMS units is designed and fabricated. The measured results show that the transition band is only 0.09 GHz and the stopband over 25 dB attenuation covers 3.4 GHz to 10 GHz. The measured and simulated results are in good agreement.
引用
收藏
页码：55 / 62
页数：8
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