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Design and Implementation of 2.4/5 GHz Dual-Band Plate Type Antenna for Access Point of Wireless LAN  

Lee Won-Kew (Department of Electronics Engineering, University of Incheon)
Son Ji-Myoung (Department of Electronics Engineering, University of Incheon)
Han Jun-Hee (Department of Electronics Engineering, University of Incheon)
Yang Woon-Geun (Department of Electronics Engineering, University of Incheon)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.17, no.5, 2006 , pp. 401-407 More about this Journal
Abstract
In this paper, we present a small-sized and light weighted dual-band antenna for an access point of 2.4/5 GHz dual-band WLAN(Wireless Local Area Network). The antenna for WLAN should show the characteristic of omni-directional radiation pattern. First, to obtain the omni-directional radiation pattern the proposed dual-band antenna has an orthogonal inverted triangular type element at the center and locates four resonating elements symmetrically around it. Also, for the purpose of easy manufacturing and miniaturization of the antenna, we changed the central element which had the orthogonal inverted triangular type structure into the plate type. Measured $S_{11}$ for the proposed dual-band plate type antenna showed characteristic which was less then -12.8 dB for WLAN frequency bands. Measured results for the maximum gain showed 3.17 dBi at 2.44 GHz, 5.38 dBi at 5.77 GHz with omni-directional radiation pattern. The implemented antennas showed applicable performances for the access point of WLAN.
Keywords
Dual-Band Antenna; Access Point; WLAN(Wireless Local Area Network);
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