Title :
Design of circular polarized antennas using genetic algorithm based on curved wire analysis
Author :
Mangoud, Mohab A.
Author_Institution :
Dept. of Electron. & Commun., Arab Acad. for Sci. & Technol., Alexandria, Egypt
Abstract :
An efficient genetic algorithm/method of moments formulation using curved segmentation (GA/MoM-CS) to optimize the curl and helical antenna structures is implemented and employed to design and optimize complex helical wire antennas such as tapered single helical antenna (TSHA), single elliptical curl antenna (SECA) and tapered quadrifilar antenna (TQFA) mounted over infinite ground plane. An optimum gain, VSWR and circular polarization properties that make these antennas suitable to be used in satellite communications systems are obtained. The numerical results show that the hybrid GA/MoM-CS produces superior antenna designs for such complex geometries with reduced computation time compared to codes that uses straight wire segmentations.
Keywords :
antenna radiation patterns; genetic algorithms; helical antennas; method of moments; satellite antennas; wire antennas; VSWR; circular polarized antenna design; curl antenna structures; curved segmentation; curved wire analysis; genetic algorithm; helical antenna structures; helical wire antennas; method of moments; satellite communication systems; single elliptical curl antenna; tapered quadrifilar antenna; tapered single helical antenna; Algorithm design and analysis; Computational geometry; Design optimization; Genetic algorithms; Helical antennas; Moment methods; Polarization; Satellite antennas; Satellite communication; Wire;
Conference_Titel :
Circuits and Systems, 2004. MWSCAS '04. The 2004 47th Midwest Symposium on
Print_ISBN :
0-7803-8346-X
DOI :
10.1109/MWSCAS.2004.1353929
