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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2020-11-21
Hybrid Method for the EMI Analysis of Penetrated Wire of Electronic Device Excited by Space Electromagnetic Fields
By
Zhihong Ye,

    Dr. Zhihong Ye

    School of Communication and Information Engineering

    Chongqing University of Posts and Telecommunications

    China

    Homepage

Jianjian Zhou,

    Dr. Jianjian Zhou

    Chongqing University of Posts and Telecommunications

    China

    Homepage

Dan Gou

    Dr. Dan Gou

    Chongqing University of Posts and Telecommunications

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 98, 213-221, 2020
doi:10.2528/PIERM20091301 | Google Scholar

Abstract
An efficient field-to-circuit hybrid method is presented for the electromagnetic interference (EMI) analysis of penetrated wire of an electronic device excited by ambient wave, which consists of finite-difference time-domain (FDTD) method, transmission line (TL) equations, Thevenin's theorem, and circuit analysis method. The significant feature of this method is that it can avoid modelling the structures of penetrated wire and terminal circuit directly on the premise of guaranteeing sufficient accuracy. At first, the whole model of penetrated wire of an electronic device is decomposed into external and internal regions according to the shielded enclosure of the device. Then, the FDTD method combined with TL equations is applied to build the coupling model of external transmission line with the shielded enclosure and extract the equivalent circuit model of an external region based on Thevenin's theorem, which is further imported into the internal region as excitation source. Finally, the EMI analysis of internal region is executed by constructing the transmission parameter matrices of the two-port cascade network, which is contributed by the penetration node, internal transmission line and terminal circuit. Then the interference response on terminal circuit can be obtained. Numerical simulations have been taken into account to verify the the accuracy and efficiency of this field-to-circuit hybrid method by comparing with the traditional FDTD method.
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Citation
Zhihong Ye, Jianjian Zhou, and Dan Gou, "Hybrid Method for the EMI Analysis of Penetrated Wire of Electronic Device Excited by Space Electromagnetic Fields," Progress In Electromagnetics Research M, Vol. 98, 213-221, 2020.
doi:10.2528/PIERM20091301
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