Title :
Multiobjective genetic algorithm approach for a dual-feed circular polarised patch antenna design
Author :
Aljibouri, B. ; Lim, E.G. ; Evans, H. ; Sambell, A.
Author_Institution :
Commun. Syst. Res. Group, Northumbria Univ., UK
fDate :
6/8/2000 12:00:00 AM
Abstract :
A design procedure for a dual feed network is presented to produce a circular polarised matched antenna involving eight design parameters with associated constraints. Determination of such design parameters has been made possible by utilising a multiobjective genetic algorithm (MGA) approach. The conditions for circular polarisation and impedance matching were the objective functions employed in the MGA. The associated constraints were the lengths and characteristic impedance values of the feed network. The return loss and axial ratio for a 5.8 GHz antenna were investigated and good agreement was obtained between simulated and practical measurements
Keywords :
antenna feeds; antenna theory; electric impedance; electromagnetic wave polarisation; equivalent circuits; genetic algorithms; impedance matching; microstrip antennas; 5.8 GHz; axial ratio; characteristic impedance values; circular polarisation; circular polarised matched antenna; circular polarised patch antenna design; design parameters; design procedure; dual feed network; dual-feed patch antenna design; impedance matching; multiobjective genetic algorithm; objective functions; return loss;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000766
