Multiobjective shape optimization of broad-band reflector antennas using the cone of efficient directions algorithm

Author

Lisboa, A.C. ; Vieira, D.A.G. ; Vasconcelos, J.A. ; Saldanha, R.R. ; Takahashi, R.H.C.

Author_Institution

Dept. of Electr. Eng., Univ. Fed. de Minas Gerais, Belo Horizonte

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

1223

Lastpage

1226

Abstract

This paper presents a multiobjective shape optimization of an offset reflector antenna using the Cone of Efficient Directions Algorithm (CEDA), that includes a multiobjective line search. This algorithm features a monotone dominance convergence: the sequence of solution antennas occur in such a way that all the objectives are improved simultaneously. Given an area to be covered, the desired radiation pattern is the one with the maximum mean gain and uniformity, possibly weighted, inside it. These features are achieved by the definition of a single objective function, which must held in three different frequencies (a total of three conflicting objectives), in order to provide broad-band characteristics to the designed antenna

Keywords

antenna radiation patterns; broadband antennas; optimisation; reflector antennas; broadband reflector antennas; cone of efficient directions algorithm; monotone dominance convergence; multiobjective line search; multiobjective shape optimization; radiation pattern; Algorithm design and analysis; Antenna radiation patterns; Design optimization; Directive antennas; Frequency; Lighting; Mathematics; Reflector antennas; Satellite antennas; Shape; Cone of efficient directions algorithm; multiobjective optimization and design; offset reflector antenna;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871939

Filename

1608433