NDLI: Nonconforming discretization of the Combined-Field Integral Equation with volumetric testing

Content Provider	IEEE Xplore Digital Library
Author	Ubeda, E. Rius, J.M. Heldring, A.
Copyright Year	2015
Description	Author affiliation: Signal Theor. & Commun. Dept., Univ. Politec. de Catalunya, Barcelona, Spain (뻚, E.; Rius, J.M.; Heldring, A.)
Abstract	Recent attention has been devoted to the development of nonconforming method-of-moment (MoM) implementations of the Electric-Field Integral Equation (EFIE), which provide current solutions with no continuity constraints between neighboring facets. These schemes rely on the testing of the fields over small volumetric domains attached to the surface triangulation, inside the body under analysis. In the scattering analysis of closed conductors with edges and corners, improved accuracy is observed when compared with the conventional RWG-discretization of the EFIE. Similarly, in these cases, the Galerkin MoM-implementation of the Magnetic-Field Integral Equation (MFIE) with the monopolar-RWG basis functions, a low-order example of nonconforming set, shows improved accuracy with respect to the poorly accurate RWG-discretization of the MFIE. In this paper, we show RCS-results for the monopolar-RWG MoM-implementation of the Combined-Field Integral Equation (CFIE), which arises from the linear combination of the EFIE and the MFIE. As expected, it offers improved accuracy for the sharp-edged conductor tested with respect to the conventional RWG-discretization of the CFIE.
Sponsorship	IEEE
Starting Page	1156
Ending Page	1157
File Size	188460
Page Count	2
File Format	PDF
e-ISBN	9781479978151
DOI	10.1109/APS.2015.7304966
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-19
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Method of moments Accuracy Integral equations Conductors Scattering Antennas
Content Type	Text
Resource Type	Article

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