A Miniaturized Balanced-to-Unbalanced In-Phase Filtering Power Divider With Wide Upper Stopband and Wideband Common-Mode Suppression

被引：2

作者：

Wang, Zhongbao ^{[1
]}

Zhu, Zihui ^{[1
]}

Fu, Ye ^{[1
]}

Han, Peng ^{[1
]}

Liu, Hongmei ^{[1
]}

Fang, Shaojun ^{[1
]}

机构：

[1] Dalian Maritime Univ, Sch Informat Sci & Technol, Dalian 116026, Liaoning, Peoples R China

来源：

IEEE ACCESS | 2021年 / 9卷

基金：

中国国家自然科学基金;

关键词：

Filtering; Power dividers; Shunts (electrical); Wideband; Equivalent circuits; Resonators; Prototypes; Balanced to unbalanced; filtering power divider; circuit miniaturization; in-phase; wide stopband;

D O I：

10.1109/ACCESS.2021.3121184

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A miniaturized balanced-to-unbalanced in-phase filtering power divider with wide upper stopband and wideband common-mode suppression is proposed. The in-phase feature is realized by the coupled/non-coupled lines. The stub with shunt-capacitor is used to realize the functions of filtering and miniaturization. The closed-form design equations are provided and discussed. To verify the design equations, one prototype with a center frequency of 1.0 GHz is designed and fabricated. The measured differential return loss is greater than 15 dB in the range of 0.82-1.22 GHz (39.2%). The upper stopband rejection is better than 20 dB from 1.41 to 3.57 GHz. Common-mode suppression is greater than 20 dB from 0 to 3.7 GHz. The measured results are in good agreement with electromagnetic simulations.

引用

页码：143181 / 143187

页数：7

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