EMI Radiation Physics using Generalized Characteristic Mode (GCM) Analysis with Loss for Practical Structures
Characteristic mode analysis has been proposed for lossless case for decades. However, for real electromagnetic interference (EMI) structures, such as printed circuit board (PCB) midplane connector and heat sink, lossy material (such as copper) and terminations (resistive loads) are unavoidable which tradidiotnal CM method cannot handle. In this paper, a generalized CM analysis for lossy material and/or with resistive loads is developed for practical structures. With the proposed method, by applying integral-equation (IE) based method and characteristic mode (CM) analysis, the current is split into radiating and non-radiating ones. The radiated power from each part of the structure can be quantified using the radiating current. Therefore, the radiation hot spot can be identified. This method facilitates the CM method in real applications.
Y. S. Cao and X. Wang and Y. Wang and L. Jiang and A. E. Ruehli and S. He and H. Zhao and J. Hu and J. Fan and J. L. Drewniak, "EMI Radiation Physics using Generalized Characteristic Mode (GCM) Analysis with Loss for Practical Structures," Proceedings of the 26th IEEE Conference on Electrical Performance of Electronic Packaging and Systems (2017, San Jose, CA), Institute of Electrical and Electronics Engineers (IEEE), Oct 2017.
The definitive version is available at https://doi.org/10.1109/EPEPS.2017.8329764
26th IEEE Conference on Electrical Performance of Electronic Packaging and Systems, EPEPS (2017: Oct. 15-18, San Jose, CA)
Electrical and Computer Engineering
Electromagnetic Compatibility (EMC) Laboratory
National Science Foundation (U.S.)
Keywords and Phrases
Electromagnetic pulse; Electromagnetic wave interference; Electronics packaging; Integral equations; Signal interference; Characteristic modes; CM method; Lossy materials; Printed circuit boards (PCB); Radiated power; Radiation physics; Real applications; Resistive loads; Printed circuit boards; Electromagnetic interference (EMI); Generalized characteristic mode (GCM); Lossy case
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International Standard Serial Number (ISSN)
Article - Conference proceedings
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