Journal of South China University of Technology (Natural Science Edition) ›› 2009, Vol. 37 ›› Issue (5): 8-11.

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Compact Omnidirectional Triple-Band Antenna Applied to WLAN/WiMAX

Ma Han-qing  Chu Qing-xin   

  1. School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2008-08-03 Revised:2008-12-22 Online:2009-05-25 Published:2009-05-25
  • Contact: 马汉清（1980-），男，博士生，主要从事天线研究． E-mail:Vswr@163.com
  • About author:马汉清（1980-），男，博士生，主要从事天线研究．
  • Supported by:

    国家自然科学基金资助项目（U0635004,07118061）

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Abstract:

As the existing compact muhiband antennas are usually of complicated structure and unidirectional radia- tion, this paper presents a novel antenna applied to WLAN （2.45 GHz and 5.15 - 5.85 GHz） and WiMAX （3.50 GHz）. The antenna is a monopole with modified top-loaded resonant structures that consist of folded strip lines in horizontal direction. It is compact in size with a height of only 10 mm and a width of only 13 mm. Moreover, it realizes the vertically-polarized omnidirectional radiation in the three operation bands. Experimental results show that the return loss of the antenna in the operation bands is less than - 10 dB, and that the antenna is suitable for mobile applications because it provides omnidirectional radiation patterns in the H-plane.

Key words: antenna, mobile communication, multiband antenna, omnidirectional antenna, compact antenna, wireless LAN