A modified equivalence principle for open surfaces

Date
2014
Advisor
Instructor
Source Title
2014 IEEE Antennas and Propagation Society International Symposium (APSURSI)
Print ISSN
1522-3965
Electronic ISSN
Publisher
IEEE
Volume
Issue
Pages
129 - 130
Language
English
Type
Conference Paper
Journal Title
Journal ISSN
Volume Title
Abstract

We introduce a new method for expanding equivalent surface current densities over open surfaces. The new method is based on the equivalence principle, which is theoretically used with closed surfaces. Utilizing low-order basis functions to compute the expansion coefficients of equivalent surface currents and then weighting these coefficients with an appropriate window function compensates for computational field errors originating from using truncated currents at the open boundaries. These modified coefficients can be used to reproduce the original electromagnetic fields inside a limited equivalent region. The simulations demonstrate that relative errors as low as 1-2.5% are achievable based on the specifics of the source and shape of the open surface. © 2014 IEEE.

Course
Other identifiers
Book Title
Keywords
Basis functions, Computational field, Equivalence principles, Expansion coefficients, Modified coefficient, Open boundaries, Surface current density, Window functions, Electromagnetic fields
Citation
Published Version (Please cite this version)