TY - JOUR
T1 - The modern high frequency methods for solving electromagnetic scattering problems
AU - Wu, Yu Mao
AU - Chew, Weng Cho
N1 - Funding Information:
This work was supported in part by NSFC 61401103, in part by NSF-SH Grant 14ZR1402400, in part by the talent recruitment under Grant IDH1207001 by Fudan University, in part by the State Key Laboratory of Millimeter Waves Grant K201505, in part by Innovation Fund of Petro-China 2014D-5006-0301, in part by SINOPEC Key Laboratory of Geophysics 33550006-14-FW2099-0034, in part by the Research Grants Council of Hong Kong (GRF 712612 and 711511), in part by US AR120018 contracted through UTAR, and in part by USA NSF CCF Award 1218552.
Publisher Copyright:
© 2016, Electromagnetics Academy. All rights reserved.
PY - 2016
Y1 - 2016
N2 - The high frequency scattering problems of electromagnetic fields scattered from electrically large scatterers are important and challenging. On the calculation of the reflected and diffracted wave fields, the high frequency methods could be classified into the current based method and the ray based method. In this paper, first, we give a review on the progress of the modern high frequency methods for solving the electromagnetic scattering problems. Next, due to the highly oscillatory property of the high frequency electromagnetic scattered fields, we propose the numerical steepest descent path method. Finally, we comprehensively address the high frequency wave physics, including the high frequency critical point contributions, the Keller's cone, the shadow and reflection boundaries and the creeping wave fields.
AB - The high frequency scattering problems of electromagnetic fields scattered from electrically large scatterers are important and challenging. On the calculation of the reflected and diffracted wave fields, the high frequency methods could be classified into the current based method and the ray based method. In this paper, first, we give a review on the progress of the modern high frequency methods for solving the electromagnetic scattering problems. Next, due to the highly oscillatory property of the high frequency electromagnetic scattered fields, we propose the numerical steepest descent path method. Finally, we comprehensively address the high frequency wave physics, including the high frequency critical point contributions, the Keller's cone, the shadow and reflection boundaries and the creeping wave fields.
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U2 - 10.2528/PIER15110208
DO - 10.2528/PIER15110208
M3 - Article
AN - SCOPUS:84975841171
VL - 156
SP - 63
EP - 82
JO - Progress in Electromagnetics Research
JF - Progress in Electromagnetics Research
SN - 1070-4698
ER -