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Physics > Computational Physics

arXiv:1602.05520 (physics)
[Submitted on 17 Feb 2016 (v1), last revised 18 Dec 2016 (this version, v3)]

Title:Optimal Currents on Arbitrarily Shaped Surfaces

Authors:L. Jelinek, M. Capek
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Abstract:An optimization problem has been formulated to find a resonant current extremizing various antenna parameters. The method is presented on, but not limited to, particular cases of gain $G$, quality factor $Q$, gain to quality factor ratio $G/Q$, and radiation efficiency $\eta$ of canonical shapes with conduction losses explicitly included. The Rao-Wilton-Glisson basis representation is used to simplify the underlying algebra while still allowing surface current regions of arbitrary shape to be treated. By switching to another basis generated by a specific eigenvalue problem, it is finally shown that the optimal current can, in principle, be found as a combination of a few eigenmodes. The presented method constitutes a general framework in which the antenna parameters, expressed as bilinear forms, can automatically be extremized.
Comments: 13 pages, 18 figures, IEEE Transactions on Antennas and Propagation 65, 2017
Subjects: Computational Physics (physics.comp-ph); Classical Physics (physics.class-ph)
Cite as: arXiv:1602.05520 [physics.comp-ph]
  (or arXiv:1602.05520v3 [physics.comp-ph] for this version)
  https://doi.org/10.48550/arXiv.1602.05520
Related DOI: https://doi.org/10.1109/TAP.2016.2624735

Submission history

From: Lukas Jelinek [view email]
[v1] Wed, 17 Feb 2016 18:28:38 UTC (6,051 KB)
[v2] Sun, 26 Jun 2016 12:44:20 UTC (7,984 KB)
[v3] Sun, 18 Dec 2016 05:14:47 UTC (8,008 KB)
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