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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Active manipulation of exterior electromagnetic fields by using surface sources


Authors: Daniel Onofrei, Eric Platt and Neil Jerome A. Egarguin
Journal: Quart. Appl. Math. 78 (2020), 641-670
MSC (2010): Primary 35Q60, 45Q05
DOI: https://doi.org/10.1090/qam/1567
Published electronically: January 22, 2020
MathSciNet review: 4148822
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Abstract: In this paper, we establish a scheme for the active manipulation of electromagnetic fields in prescribed exterior regions using a surface source. We prove the existence of the necessary surface current (electric or magnetic) on a single source to approximate prescribed electromagnetic fields on given regions of space (bounded or possibly the far field). We provide two constructive schemes for the computation of the required surface currents: our first strategy makes use of the Debye representation results for the electromagnetic field and builds up on previous control results for scalar fields discussed in [J. Integral Equations Appl. 26 (2014), pp. 553–579]; the second strategy we propose makes use of integral electromagnetic representation results and follows theoretically from the first. We provide theoretical validation for both computational schemes and present supporting numerical simulations for the first strategy in several applied scenarios.


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Additional Information

Daniel Onofrei
Affiliation: Department of Mathematics, University of Houston, Houston, Texas 77004
MR Author ID: 753389
Email: onofrei@math.uh.edu

Eric Platt
Affiliation: Department of Mathematics, University of Houston, Houston, Texas 77004
Email: eplatt314@gmail.com

Neil Jerome A. Egarguin
Affiliation: Institute of Mathematical Sciences and Physics, University of the Philippines Los Baños, College, Laguna, Philippines; and Department of Mathematics, University of Houston, Houston, Texas 77004
Email: naegarguin1@up.edu.ph

Keywords: Control of EM waves, Maxwell’s equations, Debye potentials, integral equations in inverse problems, near and far field synthesis, Tikhonov regularization
Received by editor(s): October 22, 2019
Received by editor(s) in revised form: November 25, 2019
Published electronically: January 22, 2020
Additional Notes: The authors would like to acknowledge the Army Research Office for funding this work under the award W911NF- 17-1-0478.
Article copyright: © Copyright 2020 Brown University