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http://dx.doi.org/10.4218/etrij.15.0114.0676

Compact Triple-Band Monopole Antenna for WLAN/WiMAX-Band USB Dongle Applications  

Shi, Ya Wei (College of Electronic and Information Engineering, Southwest University)
Xiong, Ling (China Coal Technology Engineering Group Chongqing Research Institute)
Chen, Meng Gang (College of Electronic and Information Engineering, Southwest University)
Publication Information
ETRI Journal / v.37, no.1, 2015 , pp. 21-25 More about this Journal
Abstract
A miniaturized triple-band antenna suitable for wireless USB dongle applications is proposed and investigated in this paper. The presented antenna, simply consisting of a circular-arc-shaped stub, an L-shaped stub, a microstrip feed line, and a rectangular ground plane has a compact size of $16mm{\times}38.5mm$ and is capable of generating three separate resonant modes with very good impedance matching. The measurement results show that the antenna has several impedance bandwidths for S11 ${\leq}$ -10 dB of 260 MHz (2.24 GHz to 2.5 GHz), 320 MHz (3.4 GHz to 3.72 GHz), and 990 MHz (5.1 GHz to 6.09 GHz), which can be applied to both 2.4/5.2/5.8 GHz WLAN bands and 3.5/5.5 GHz WiMAX bands. Moreover, nearly-omni-directional radiation patterns and stable gain across the operating bands can be obtained.
Keywords
Triple-band antenna; USB dongle; WLAN; WiMAX;
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