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Design of a coaxially fed circularly polarized rectangular microstrip antenna using a genetic algorithm
Author(s) -
Lee Donggeun,
Lee Sangseol
Publication year - 2000
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/1098-2760(20000905)26:5<288::aid-mop4>3.0.co;2-u
Subject(s) - microstrip antenna , microstrip , axial ratio , genetic algorithm , microwave , circular polarization , antenna (radio) , patch antenna , optics , physics , electronic engineering , engineering , mathematics , telecommunications , mathematical optimization
A new application of a genetic algorithm (GA) for the design of a coaxially fed circularly polarized rectangular microstrip antenna is presented. The GA shows excellent results for the design of microstrip antennas that have a very complicated objective function, including the input impedance, the effective loss tangent, and the axial ratio. The objective function is derived from the cavity model, and we optimize the size and the feeding point of the antenna using the GA. The experimental results show good agreement with the simulated results. © 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 26: 288–291, 2000.