A new approach to the realization of a dual-band microstrip filter with very wide upper stopband

被引：22
|
作者：
Cheng, Kwok-Keung M. [1 ]
Law, Carlos [1 ]
机构：
[1] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2008年 / 56卷 / 06期
关键词：
dual band; microwave filters; stopband;
D O I：
10.1109/TMTT.2008.923873
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：
This paper presents the design of a new dual-band filter with very wide upper stopband. The proposed circuit offers a simple and compact structure with low insertion loss. Spurious suppression is achieved by using specially designed coupling and resonator sections. Moreover, a systematic analysis is applied to the proposed topology with closed-form design equations derived. For verification purposes, the measured performance of a microstrip filter operating at 1 and 2 GHz is shown with stopband attenuation of greater than 20 dB over the frequency range from 2.5 to 8.0 GHz.
引用
收藏
页码：1461 / 1467
页数：7
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