A NOVEL FINITE-GROUND COPLANAR WAVEGUIDE STRUCTURE FILTERS WITH SPURIOUS PASSBAND SUPPRESSION

被引：0
|
作者：
Wang, Huisheng [1 ]
Li, Xiuping [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
来源：
PROCEEDINGS OF 2011 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY AND APPLICATION, ICCTA2011 | 2011年
关键词：
Finite-ground coplanar waveguide; FGCPW; half-wavelength coupling filter; Flaw ground;
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：
The spurious passband caused by finite-ground coplanar waveguide (FGCPW) coupling structure is analyzed. Semicircular flaw ground structure can shift the spurious passband toward low frequency without affecting passband. Appling of this coupling structure, the FGCPW asymmetric half wavelength coupling passband filter is designed. It has the center frequency 2.4 5GHz, the insertion loss 0.3 dB and the bandwidth 0.1 GHz while there is a spurious passband at 1.9 GHz. After utilizing semicircular flaw ground structure, spurious passband is shifted downwards to 1.5 GHz without degrading passband performance. Moreover, this kind of filter can be used for high-frequency.
引用
收藏
页码：844 / 847
页数：4
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