Enhancing the Bandwidth of Electromagnetic Cloaks Using Multi-Objective Optimization

Author

Goncalves, Fabio J. F. ; Silva, Elson J. ; Mesquita, Renato C. ; Saldanha, Rodney R.

Author_Institution

Grad. Program in Electr. Eng., Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

Reducing the scattering and enhancing the bandwidth (BW) are two desirable aspects in cloak applications. In this paper, we propose their optimization using a simplified objective function, which avoids a costly detailed frequency sweep to get the BW at each iteration. The multi-objective characteristic of our optimization permits us to obtain a set of possible solutions (the Pareto-Front), which represents different compromises between the two objectives. Two examples of dielectric cloaks are presented and discussed.

Keywords

Pareto optimisation; invisibility cloaks; BW; Pareto-front; bandwidth enhancement; dielectric cloaks; electromagnetic cloaks; multiobjective optimization; simplified objective function; Automotive components; Electromagnetics; Frequency response; Nonhomogeneous media; Optimization; Scattering; Shape; Cloak; electromagnetic scattering; multi-objective optimization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2362132

Filename

7093457