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2011-12-31

Reduced Peec Modeling of Wire-Ground Structures Using a Selective Mesh Approach

By Zhenfei Song, Fei Dai, Donglin Su, Shuguo Xie, and Fabrice Duval
Progress In Electromagnetics Research, Vol. 123, 355-370, 2012
doi:10.2528/PIER11112109

Abstract

The wire-ground electromagnetic coupling structures are quite common in avionics system electromagnetic compatibility (EMC) analysis. The increasing complexities of physical structures make electromagnetic modeling an increasingly tough task, and computational efficiency is desirable. In this paper, a novel selective mesh approach is presented for partial element equivalent circuit (PEEC) modeling where intense coupling parts are meshed while the remaining parts are eliminated. With the proposed approach, the meshed ground plane is dependent on the length and height of the above wires. Relevant compact formulae for determining mesh boundaries are deduced, and a procedure of general mesh generation is also given. A numerical example is presented, and a validation check is accomplished, showing that the approach leads to a significant reduction in unknowns and thus computation time and consumed memories, while preserving the sufficient precision. This approach is especially useful for modeling the electromagnetic coupling of wires and reference ground, and it may also be beneficial for other equivalent circuit modeling techniques.

Citation


Zhenfei Song, Fei Dai, Donglin Su, Shuguo Xie, and Fabrice Duval, "Reduced Peec Modeling of Wire-Ground Structures Using a Selective Mesh Approach," Progress In Electromagnetics Research, Vol. 123, 355-370, 2012.
doi:10.2528/PIER11112109
http://jpier.org/PIER/pier.php?paper=11112109

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