High-selectivity dual-mode dual-band microstrip bandpass filter with multi-transmission zeros

被引：18
|
作者：
Ieu, Wangshuxing [1 ]
Zhang, Dewei [1 ]
Zhou, Dongfang [1 ]
机构：
[1] Informat Sci & Technol Inst Zhengzhou, Zhengzhou 450001, Henan Province, Peoples R China
来源：
ELECTRONICS LETTERS | 2017年 / 53卷 / 07期
关键词：
resonator filters; band-pass filters; microstrip filters; out-band rejection; low-frequency passband; high-frequency passband; TE200; mode; microstrip rectangular ring; microstrip patch resonator; hybrid structure resonator; multitransmission zeros; high-selectivity dual-mode dual-band microstrip bandpass filter;
D O I：
10.1049/el.2016.4103
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 dual-mode dual-band microstrip bandpass filter using the hybrid structure resonator derived from microstrip patch is proposed. Microstrip rectangular rings are used to excite the TE200 mode and TE002 mode of microstrip patch resonator, forming the high-frequency passband while it also works as a resonator which provides the low-frequency passband. The designed filter has 11 transmission zeros, resulting in good selectivity and good out-band rejection, extending the stopband, with a size of 0.45(g) x 0.41(g). The measured results are in a good agreement with simulated results.
引用
收藏
页码：482 / 484
页数：2
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