Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity

YE Zhihong; ZHOU Haijing; LIU Qiang

doi:10.11999/JEIT170615

Volume 40 Issue 4

Apr. 2018

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Article Navigation > Journal of Electronics & Information Technology > 2018 > 40(4): 1007-1011

YE Zhihong, ZHOU Haijing, LIU Qiang. Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity[J]. Journal of Electronics & Information Technology, 2018, 40(4): 1007-1011. doi: 10.11999/JEIT170615

Citation:

YE Zhihong, ZHOU Haijing, LIU Qiang. Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity[J]. Journal of Electronics & Information Technology, 2018, 40(4): 1007-1011. doi: 10.11999/JEIT170615

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Time Domain Coupling Analysis for the Arbitrary Height Cable Terminated with TVS Circuit in Shield Cavity

doi: 10.11999/JEIT170615

1.
(School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China)
2.
(Institute of Applied Physics and Computational Mathematics, Beijing 100094, China)
3.
(Institute of Applied Physics and Computational Mathematics, Beijing 100094, China)

Funds:

The Science and Technology Research Program of Chongqing Municipal Education Commission (KJ1704082), The Doctor Start-up Funding of Chongqing University of Posts and Telecommunications (A2016-88)

Received Date: 2017-06-27
Rev Recd Date: 2017-12-04
Publish Date: 2018-04-19

Abstract

Abstract

This paper presents a novel time domain hybrid method consisting of Finite Difference Time Domain (FDTD) method, Transmission Line (TL) equation, interpolation technique, and Newton iteration method for the coupling simulation of the arbitrary height cable terminated with TVS circuit in shield cavity rapidly. It can achieve a strong synergism computation of electromagnetic field and the responses of the cable and the circuit. The hybrid method uses FDTD method combined with the STL mesh generator technique to model the enclosure of the cavity rapidly and simulate the electromagnetic field distribution in the cavity accurately. The TL equation with interpolation technique is used to set up the coupling model of the cable in the cavity. Then the FDTD method is used to discrete the TL equation to obtain the transient voltage and current responses on the cable. The current-voltage equations are used for the analysis of the TVS circuit. Then the Newton iteration method is utilized to solve the current-voltage equations to obtain the voltage responses on the TVS. The correctness of the hybrid method is confirmed by comparing with the results obtained by electromagnetic simulation software. In testing, the hybrid method can be well applied to the limiting protection design of the loads in the terminal of the cable in shield cavity.

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References(12)

References

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