Constrained power focusing of vector fields: an innovative globally optimal strategy

Domenica A.M. Iero, Lorenzo Crocco and Tommaso Isernia

Journal of Electromagnetic Waves and Applications, 2015, vol. 29, issue 13, 1708-1719

Abstract: This paper introduces and discusses an innovative approach to focus the electromagnetic power carried by a vector field into a target point, while keeping the field level bounded elsewhere. To overcome the complexity of the underlying NP-hard problem, we introduce a multi-objective optimization framework based on convex programming sub-problems. Notably, such a strategy has the unique capability of achieving the globally optimal solution by means of local search algorithms. A numerical analysis is reported to assess the methods’ performance, including a comparison with previous contributions. The proposed approach is herein presented in the case of 2D vector fields (transverse electric polarization) but it can be easily extended to the general 3D case.

Date: 2015
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DOI: 10.1080/09205071.2015.1059292

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