Wideband CRLH-transmission line bandstop filter

被引:0
|
作者
Song, Kaijun [1 ]
Pan, Tao [1 ]
Fan, Yong [1 ]
Zhong, Cuilin [2 ]
机构
[1] Univ Elect Sci & Technol China, Sch Elect Engn, EHF Key Lab Fundamental Sci, Chengdu 611731, Peoples R China
[2] Chinese Acad Sci, Shenzhen Inst Adv Technol, Ctr Integrated Elect, Shenzhen 518055, Peoples R China
基金
中国国家自然科学基金;
关键词
COUPLING STRUCTURE; RESONATORS; BANDWIDTH;
D O I
暂无
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 new compact broadband bandstop filter using composite right/left handed transmission line (CRLH-TL) is presented. The filter is designed based on a signal interference mechanism. The CRLH-TL is used to substitute the three-quarter-wavelength transmission line, thus the total size is largely reduced. A meandered slotline is etched on the ground plane below the interdigital capacitor to improve the upper passband performance. A bandstop filter with about 70% fractional bandwidth (FBW) at 3 GHz has been designed and fabricated. The size of the fabricated filter is 0.23 lambda(g) x 0.084 lambda(g).
引用
收藏
页码:1192 / 1194
页数:3
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