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A novel expression for effective radius in calculating the resonant frequency of circular microstrip patch antennas
Author(s) -
Akdagli Ali
Publication year - 2007
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/mop.22767
Subject(s) - radius , microstrip antenna , microstrip , circular buffer , patch antenna , microwave , physics , acoustics , engineering , electronic engineering , topology (electrical circuits) , electrical engineering , telecommunications , computer science , antenna (radio) , computer security , programming language
This letter presents a novel effective radius expression for determining the resonant frequency of circular microstrip patch antennas. The effective patch radius expression is constructed by using differential evolution algorithm and is valid for both electrically thin and thick circular microstrip antennas (MSAs). It is well suited to be used in the development of fast computer aided design algorithms. Numerical results obtained for the resonant frequencies of circular MSAs are in good agreement with the experimental results reported by several scientists. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2395–2398, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22767