Optimization of gain, impedance and bandwidth in Yagi-Uda antennas using genetic algorithm

Author

Correia, Davi ; Soares, Antonio J M ; Terada, Marco A B

Author_Institution

Univ. de Brasilia, Brazil

Volume

1

fYear

1999

fDate

1999

Firstpage

41

Abstract

A new application for genetic algorithms (GA) is introduced. After the use of this kind of algorithm in electromagnetic problems, especially those related with antennas, the present work proposes bandwidth optimization in Yagi-Uda antennas. In design of an antenna, there is more then one parameter that must be fit. Gain is just one of them, but impedance and bandwidth must also be fit. That is the main reason why a GA is often chosen; it can optimize more then one parameter at the same time and, as a stochastic method, it will not be stuck in a local minimum

Keywords

Yagi antenna arrays; antenna theory; electrical engineering computing; genetic algorithms; Yagi-Uda antennas; antenna design; bandwidth optimization; binary code; dynamic-link library; electromagnetic problems; gain optimization; genetic algorithm; impedance optimization; stochastic method; Bandwidth; Biological cells; Character generation; Convergence; Genetic algorithms; Genetic mutations; Impedance; Knowledge engineering; Optimization methods; Stochastic processes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International

Conference_Location

Rio de Janeiro

Print_ISBN

0-7803-5807-4

Type

conf

DOI

10.1109/IMOC.1999.867038

Filename

867038