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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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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)
  • Received : 2014.06.07
  • Accepted : 2014.10.06
  • Published : 2015.02.01
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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.

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References

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