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A compact UWB slot antenna optimized by genetic algorithm

✍ Scribed by L. Xie; Y.-C. Jiao; Y.-Q. Wei; G. Zhao; F.-S. Zhang

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
381 KB
Volume
53
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

A compact ultra‐wideband (UWB) slot antenna based on a mesh‐grid structure is designed. A genetic algorithm is used to optimize the mesh‐grid structure as well as other parameters of the proposed antenna for good impedance matching in the UWB band. The optimized UWB antenna has a compact size of 24 mm × 30 mm and is fabricated and measured. According to the measured results, the proposed antenna yields a wide bandwidth, defined by VSWR<2, ranging from 3.1 to 12.2 GHz and a nearly omnidirectional radiation pattern in the H‐plane. The antenna gains within the matching band are measured and a gain variation from 3.1 to 5.9 dBi is obtained. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26179

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