Planar Balanced and Single-Ended Dual-Path Filtering Crossover With Enhanced Isolation and Frequency Selectivity

被引：0

作者：

Zhao, Shipeng ^{[1
]}

Wang, Zhongbao ^{[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 MICROWAVE AND WIRELESS TECHNOLOGY LETTERS | 2025年 / 35卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Filtering; Wideband; Impedance; Wireless communication; Microwave filters; Microwave circuits; Microstrip; Band-pass filters; Substrates; Scattering parameters; Common-mode (CM) suppression; cross transmission; filtering selectivity; wideband isolation;

D O I：

10.1109/LMWT.2025.3526823

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 high-performance planar balanced and single-ended dual-path (BSDP) filtering crossover is proposed, which achieves not only cross-transmission and great common-mode (CM) suppression but also enhanced isolation and frequency selectivity. The constraint rules of S-parameters are provided, and the circuit structure is simplified and analyzed based on the classical even-and odd-mode method. The freely selected electrical parameters of the BSDP crossover are considered and explored to control the filtering transmission bandwidths of the balanced path and single-ended (SE) path, independently. To verify the viability of this design, a microstrip prototype is manufactured and measured with enhanced wideband isolation and sharp filtering selectivity.

引用

页码：286 / 289

页数：4

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