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Wideband balanced reflectionless filter with common-mode noise absorption

delete2025-09-01
delete0
PRE
AI
Y
Yijun Weng
秦
秦培 (Pei Qin)
W
Wenjie Feng *
DOI：10.1017/S1759078725102225delete
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Abstract

Abstract

En 中文
This paper presents a wideband balanced reflectionless filter based on the half-wavelength ring resonator. The proposed structure is simple and easy for manufacture. The design procedures are elaborately introduced. To promote understanding, the analysis of differential-mode (DM) and common-mode (CM) equivalent circuits are given. The corresponding equations are derived. For validation, a design example is fabricated and tested. The measured results verify its ability of transmitting DM signals and eliminating undesired CM signals. Specifically, the 21.6-dB CM suppression bandwidth can reach up to 273%, while the CM absorption bandwidth can reach up to 195%. The proposed balanced reflectionless filter exhibits excellent DM matching level, CM suppression level, and wide reflectionless bandwidth.
Keywords:
absorptive
balanced
Common-Mode (CM)
differential-mode (DM)
reflectionless

Journal

I
International Journal of Microwave and Wireless Technologies
IF:
1.3
Papers:
109
Citations:
1.4K

Organization

No organization information available