Plane-Wave Coupling to a Twisted-Wire Pair Above Ground

被引：79
|
作者：
Pignari, Sergio A. [1 ]
Spadacini, Giordano [1 ]
机构：
[1] Politecn Milan, Dipartimento Elettrotecn, I-20133 Milan, Italy
来源：
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 2011年 / 53卷 / 02期
关键词：
Common (CM) and differential mode (DM); CM rejection ratio; field-to-wire coupling; transmission-line (TL) model; twisted-wire pairs (TWP); TERMINAL RESPONSE; MODEL;
D O I：
10.1109/TEMC.2010.2061855
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：
A transmission-linemodel is developed for predicting the response of a twisted-wire pair (TWP) circuit in the presence of a ground plane, illuminated by a plane-wave electromagnetic field. The twisted pair is modeled as an ideal bifilar helix, the total coupling is separated into differential-(DM) and common-mode (CM) contributions, and closed-form expressions are derived for the equivalent induced sources. Approximate upper bounds to the terminal response of electrically long lines are obtained, and a simplified low-frequency circuit model is used to explain the mechanism of field-to-wire coupling in a TWP above ground, as well as the role of load balancing on the DM and CM electromagnetic noise induced in the terminal loads.
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页码：508 / 523
页数：16
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