A GaAs-Based Ultra-Wideband Common-Mode Filter Chip With Four Transmission Zeros and Equalization Integration

被引：14
|
作者：
Shi, Yongrong [1 ]
Zhou, Peng [2 ,3 ]
Feng, Wenjie [4 ]
Shen, Yiming [1 ]
Tang, Wanchun [2 ,3 ]
机构：
[1] Nanjing Elect Devices Inst, Nanjing 210016, Peoples R China
[2] Nanjing Normal Univ, Jiangsu Prov Engn Lab Audio Technol, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing 210023, Peoples R China
[3] Nanjing Normal Univ, Sch Phys & Technol, Nanjing 210023, Peoples R China
[4] Nanjing Univ Sci & Technol, Dept Commun Engn, Nanjing 210094, Peoples R China
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2020年 / 62卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Filtering theory; Topology; Noise reduction; Circuit topology; Inductors; Wideband; Common-mode (CM) suppression; differential signaling; equalization; GaAs differential circuit; MICROSTRIP LINES; SUPPRESSION; NOISE;
D O I：
10.1109/TEMC.2019.2943508
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：
This article presents a novel circuit topology for ultra-wideband common-mode filter (CMF). The common-mode (CM) noise suppression stopband is enhanced by the capacitance coupling between two dual-mode LC tanks. Moreover, the RLC equalizers are integrated with the proposed CMF circuit topology to improve the signal integrity of the differential mode. Finally, the CMF chips are fabricated by the GaAs process for low-cost massive industry applications. For the CMF chip with equalizers, the measured differential-mode insertion losses are kept nearly constant at around -5 dB from dc to 8.1 GHz. The measured -10 dB CM stopband is from 2.2 to 9.4 GHz with a fractional bandwidth of 124%, which is the widest CM noise suppression stopband, compared with the other CMF chips based on the semiconductor process.
引用
收藏
页码：2002 / 2011
页数：10
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