A wideband bandstop filter with two independently controllable equal-ripple levels

被引：1

作者：

Chen, Hongyu ^{[1
]}

Wang, Xiaolong ^{[1
]}

Lu, Geyu ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun, Peoples R China

来源：

ELECTRONICS LETTERS | 2021年 / 57卷 / 19期

基金：

中国国家自然科学基金;

关键词：

COMPACT; DESIGN;

D O I：

10.1049/ell2.12242

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：

In this letter, a novel wideband bandstop filter with controllable equal-ripple response is newly presented. The proposed topology consists of two cascaded transmission lines and three open-circuited stubs, where, one two-section OS is shunted between two transmission lines, two three-section OSs are shunted at two output ports, respectively. By using the proposed design approach, both passband and stopband provide controllable equal-ripple responses independently, where there are five transmission zeros and six reflection zeros in a single period of frequency domain. For demonstration, an experimental BSF centered at 2 GHz with 20-dB FBW 129.5% and 30-dB stopband rejection is designed and fabricated. The simulations and measurements agree with the design theory very well.

引用

页码：732 / 734

页数：3