High-Performance Wideband Balanced Bandpass Filter Based on Transversal Signal-Interference Techniques

被引：9

作者：

Pan, Bosang ^{[1
]}

Feng, Wenjie ^{[1
,2
]}

Shi, Yongrong ^{[3
]}

Huang, Meichun ^{[1
]}

Che, Wenquan ^{[1
]}

Xue, Quan ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510006, Peoples R China

[2] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China

[3] Nanjing Univ Informat Sci & Technol, Sch Elect & Informat Engn, Nanjing 210044, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2020年 / 48卷 / 12期

基金：

中国国家自然科学基金;

关键词：

Balanced bandpass filter; coupled lines; differential; common mode; source– load coupling; transversal signal-interference techniques;

D O I：

10.1109/TPS.2020.3035558

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A novel high-performance wideband balanced bandpass filter based on transversal signal-interference techniques is proposed in this article. Two signal-propagation paths consisted of coupled lines structure are used to realize two transmission zeros for the differential mode passband. Folding coupled lines are used to reduce the size of the balanced filter, and the source-load cross-coupling lines can generate additional transmission zeros to suppress the common mode signal. To validate the design, a prototype with center frequency at 2.2 GHz for long-term evolution (LTE)-band with 3-dB fractional bandwidths of 65.4% for the differential mode is designed and fabricated.

引用

页码：4119 / 4126

页数：8

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