Das, Arkaprovo and Gope, Dipanjan (2016) Modified Separated Potential Integral Equation for Low-Frequency EFIE Conditioning. In: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 64 (4). pp. 1394-1403.
PDF
IEEE_Tra_Ant_Pro_64-4_1394_2016.pdf - Published Version Restricted to Registered users only Download (1MB) | Request a copy |
Abstract
In this work, a methodology to address the low-frequency stability issues common to electric-field integral equation (EFIE)-based 3-D full-wave electromagnetic solvers is presented. The proposed formulation uses a separated potential integral equation (SPIE) approach which appends scaled electric scalar potentials to the electric currents as unknowns. The limitations of the existing SPIE technique, particularly for lossless and low-loss geometries, are addressed by enforcing charge neutrality and a potential referencing scheme. An appropriate preconditioning strategy is implemented for fast iterative solution of the system. The method seamlessly transitions into high-frequency solutions and therefore presents a true broadband formulation. Numerical experiments demonstrate over 20x speedup in convergence at low frequencies as compared to traditional SPIE.
Item Type: | Journal Article |
---|---|
Publication: | IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION |
Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
Additional Information: | Copy right for this article belongs to the IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA |
Keywords: | Electric field integral equation (EFIE); loop-tree decomposition; low-frequency breakdown |
Department/Centre: | Division of Electrical Sciences > Electrical Communication Engineering |
Date Deposited: | 17 Jun 2016 05:13 |
Last Modified: | 17 Jun 2016 05:13 |
URI: | http://eprints.iisc.ac.in/id/eprint/53978 |
Actions (login required)
View Item |