Title :
A new Coulomb gauge based electric field integral equation method
Author :
Xiong, Xiaoyan Y. Z. ; Li Jun Jiang ; Sha, Wei E. I. ; Yat Hei Lo
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
Abstract :
Summary form only given. The electric field integral equation (EFIE) method is one of the most commonly-adopted computational electromagnetic methods. Its popularity stems from the efficient surface triangulation, excellent numerical precision, and the powerful capability of handling open and complex geometries. However, when the frequency tends to zero, the method-of-moment (MoM) solution of EFIE using the Rao-Wilton-Glisson (RWG) basis functions suffers from the low-frequency breakdown, where the contribution from the vector potential is extremely imbalanced with that from the scalar potential. As a result, the matrix representation of EFIE operator is highly ill-conditioned and cannot be inverted reliably and efficiently.
Keywords :
Green´s function methods; approximation theory; computational electromagnetics; electric field integral equations; mathematical operators; method of moments; vectors; Coulomb gauge based electric field integral equation method; Coulomb-gauge Green´s function; EFIE method; Rao-Wilton-Glisson basis functions; computational electromagnetic methods; low-frequency breakdown; matrix representation; method-of-moment solution; quasistatic approximation; surface triangulation; vector potential; Computational electromagnetics; Educational institutions; Electric breakdown; Electric fields; Integral equations; Method of moments; Roads;
Conference_Titel :
Radio Science Meeting (Joint with AP-S Symposium), 2013 USNC-URSI
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4799-1128-8
DOI :
10.1109/USNC-URSI.2013.6715399
