Handling Sideband Radiations in Time-Modulated Arrays Through Particle Swarm Optimization

Author

Poli, Lorenzo ; Rocca, Paolo ; Manica, Luca ; Massa, Andrea

Author_Institution

Dept. of Inf. Eng. & Comput. Sci., Univ. of Trento, Trento, Italy

Volume

58

Issue

4

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

1408

Lastpage

1411

Abstract

The minimization of the power losses in time-modulated arrays is addressed by means of a suitable strategy based on particle swarm optimization. By properly modifying the modulation sequence, the method is aimed at reducing the amount of wasted power, analytically computed through a very effective closed-form relationship, while constraining the radiation pattern at the carrier frequency below a fixed sidelobe level. Representative results are reported and compared with previously published solutions to assess the effectiveness of the proposed approach.

Keywords

minimisation; modulation; particle swarm optimisation; carrier frequency; closed-form relationship; minimization; modulation sequence; particle swarm optimization; power losses; radiation pattern; sideband radiation; time-modulated arrays; Computer science; Frequency; Optical arrays; Particle swarm optimization; Pattern analysis; Permission; Phased arrays; Postal services; Power generation; Power system harmonics; Prototypes; Stochastic processes; Switches; World Wide Web; Linear arrays; pattern synthesis; time-modulated arrays;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2010.2041165

Filename

5398861