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A compact ultra-wideband CPW-fed slot antenna with a forklike stub

✍ Scribed by W. J. Lui; C. H. Cheng; Y. Cheng; H. B. Zhu

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
94 KB
Volume
46
Category
Article
ISSN
0895-2477

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✦ Synopsis

A novel ultra-wideband compact slot antenna fed by a grounded coplanar waveguide (CPW) is presented. This antenna is similar to the conventional CPW-fed slot antenna, and a forklike tuning stub and a polygonlike slot are designed in order to increase the operation bandwidth of the antenna. It is investigated numerically and experimentally for its impedance bandwidth, radiation pattern, and gain. The obtained impedance bandwidth of the antenna is from 2.89 to 9.19 GHz (with return loss of less than Ϫ9.5 dB), which is over 3.2:1, and good omnidirectional performance over the entire frequency range is achieved.

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