Improved compact microstrip resonance cell lowpass filter with wide stopband characteristics

被引：18
|
作者：
Deng, K.
Xue, Q.
Che, W.
机构：
[1] City Univ Hong Kong, Dept Elect Engn, Wireless Commun Res Ctr, Kowloon, Hong Kong, Peoples R China
[2] Nanjing Univ Sci & Technol, Dept Elect Engn, Nanjing 210094, Peoples R China
来源：
ELECTRONICS LETTERS | 2007年 / 43卷 / 08期
关键词：
7;
D O I：
10.1049/el:20070028
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：
An improved compact microstrip resonance cell (CMRC) structure is presented. Good lowpass performance and wide stopband characteristics can be achieved with a simple single resonant cell; four transmission zeros are introduced into the stopband and thus out-of-band rejection is significantly improved. Measured results of the fabricated prototype show that the insertion loss is less than 0.1 dB in the whole passband, and stopband bandwidth better than -10 dB is obtained from 2.9 to 15.9 GHz, which is an improvement of 138.3% from a conventional CMRC.
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页码：463 / 464
页数：2
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