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Title: Particle swarm optimization of L-probe fed E-shaped patch antenna using single-objective function
Authors: Chung, KL
Tam, WY 
Keywords: E-shaped patch antenna
L-probe feed
Multiobjective optimization
Particle swarm optimization
Issue Date: 2010
Publisher: Wiley-Blackwell
Source: Microwave and optical technology letters, 2010, v. 52, no. 3, p. 702-706 How to cite?
Journal: Microwave and optical technology letters 
Abstract: An application of particle swarm optimization (PSO) for wideband patch antenna design is presented in this article. A PSO kernel is built on a MATLAB-driven MoM-based EM simulator FEKO. The chosen antenna geometry in this study is the E-shaped patch but excited by an L-probe feed. Ten geometrical parameters are optimized simultaneously with the use of a single-objective: impedance bandwidth broadening. The desired center frequency of this ceiling mounted WLAN (IEEE 802.11a/n) antenna is set at 5.5 GHz with butterfly beam operation. E-shaped patch geometry of higher order mode is obtained from the PSO-EM optimizer. The simulated results are verified by the experimental results that a ∼3.5 dBi gain at the elevation angles of ±36° and a >50% of 10-dB return-loss bandwidth are obtained at the price of high cross-polarization levels. This suggests that a multiobjective particle swarm optimization should be used for the wideband antenna design in the future study.
ISSN: 0895-2477
EISSN: 1098-2760
DOI: 10.1002/mop.25016
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