Volume 1, Number 2 (April 2005)                   IJEEE 2005, 1(2): 94-101 | Back to browse issues page


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F. Hojjat Kashani, A. A. Lotfi Neyestanak, K. Barkeshli. Impedance bandwidth optimization of double slots circular patch antenna using genetic algorithm and the Interface Fuzzy Logic. IJEEE. 2005; 1 (2) :94-101
URL: http://ijeee.iust.ac.ir/article-1-51-en.html

Abstract:   (11055 Views)
A modified circular patch antenna design has been proposed in this paper, the bandwidth of this antenna is optimized using the genetic algorithm (GA) based on fuzzy decision-making. This design is simulated with HP HFSS Program that based on finite element method. This method is employed for analysis at the frequency band of 1.4 GHz- 2.6 GHz. It gives good impedance bandwidth of the order of 15.5% at the frequency band of 1.67GHz- 1.95GHz and 10.6% at 2.23GHz- 2.48GHz. It means that impedance bandwidth increases above 4.9% than the impedance bandwidth of ordinary circular patch antennas and band width rise from 1.78GHz- 1.98GHz (10.6%) to 1.67GHz- 1.95GHz (15.5%) and 2.23GHz- 2.48GHz (10.6%). The antenna fabricated with two slots on circular patch antenna. The measured results of the optimized antenna validate a high compatibility between the simulation and the measurements.
Full-Text [PDF 613 kb]   (3834 Downloads)    
Type of Study: Research Paper |
Received: 2008/10/13

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