Novel bandpass filter with high selectivity and very wide stopband using open stub loaded and DGS

被引：1

作者：

Wu, Guoan ^{[1
]}

Zhang, Xiang ^{[1
]}

Li, Wenguang ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, 1037,Luoyu Rd, Wuhan 430074, Hubei, Peoples R China

来源：

IEICE ELECTRONICS EXPRESS | 2017年 / 14卷 / 16期

基金：

中国国家自然科学基金;

关键词：

BPF; widestopband; high selectivity; DGS; STEPPED-IMPEDANCE RESONATORS; LINES; PERFORMANCE; BANDSTOP;

D O I：

10.1587/elex.14.20170316

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 novel bandpass filter (BPF) based on half-wave-length (lambda/2) stepped-impedance resonators (SIRs) is proposed in this paper. By properly designing the impedance ratios of the SIRs, the spurious harmonics of the filter can be pushed to upper frequency. With several bandstop structures such as open stubs and defected ground structures (DGSs) applied to the BPF, a good stopband performance is obtained. Moreover, 0 degrees feed structure is used to improve the selectivity of the BPF. Then a BPF which has high selectivity and wide stopband is implemented. Measured results show good agreement with the simulated results.

引用

页数：6

共 11 条

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