ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

Modified Separated Potential Integral Equation for Low-Frequency EFIE Conditioning

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.

[img] PDF
IEEE_Tra_Ant_Pro_64-4_1394_2016.pdf - Published Version
Restricted to Registered users only

Download (1MB) | Request a copy
Official URL: http://dx.doi.org/10.1109/TAP.2016.2526056


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
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
Depositing User: Id for Latest eprints
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 View Item