Time-Domain Discontinuous Galerkin PMCHW Integral Equation Method With MOD Scheme for Simulating Electromagnetic Pulse Responses of Arbitrarily Shaped Dielectric Objects
- 19 July 2018
- journal article
- research article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Electromagnetic Compatibility
- Vol. 61 (4), 1157-1166
- https://doi.org/10.1109/temc.2018.2853261
Abstract
A time-domain discontinuous Galerkin Poggio–Miller–Chang–Harrington–Wu integral equation method, which is based on marching-on-in-degree (MOD) scheme, is proposed to simulate electromagnetic pulse (EMP) responses of arbitrarily shaped dielectric objects, where half Rao–Wilton–Glisson basis functions are chosen as the spatial basis ones. Both electric and magnetic current continuities between adjacent elements are guaranteed by introducing additional interior penalty terms. Therefore, three-dimensional dielectric structures with either conformal or nonconformal meshes can be treated. Meanwhile, the weighted Laguerre polynomials are chosen as the temporal basis functions and implemented for the MOD scheme, and stable EMP responses can be captured. Since our method is based on the surface integral equation with the objects’ surface meshed, the number of unknowns are significantly reduced in comparison with that of the volume integral equation method. Some numerical examples are presented to validate both stability and accuracy of the developed algorithm.Keywords
Funding Information
- National Natural Science Foundation of China (61431014)
- China Academy of the Engineering Physics (U1530121)
- Science Challenge Project of China (JCKY2016212A502)
- Shanghai Academy of Spaceflight Technology (SAST2016059)
- National Key Lab of Science and Technology on Electromagnetic Environment Effects
- Science and Technology on Electronic Information Control Lab
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