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Design of a Dual-band Snowflake-Shaped Microstrip patch Antenna With Short-pin For 5.2/5.8 GHz WLAN System  

Song, Jun-Sung (인하대학교 통신공학연구실)
Choi, Sun-Ho (인하대학교 통신공학연구실)
Lee, Hwa-Choon (초당대학교 정보통신공학과)
Kwak, Kyung-Sup (인하대학교 정보통신대학원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.4A, 2009 , pp. 324-329 More about this Journal
Abstract
In this paper, a novel Snowflake-shaped microstrip patch antenna for application in the WLAN(5.2/5.8GHz) band is designed and fabricated. The size of antenna is $21.2{\times}16mm^2$ and substrate is used Taconic-RF30. To obtain sufficient bandwidth in Return loss <-10dB and dual resonance characteristic, the Short-pin is inserted on the patch and the coaxial probe source is used. The measured results of fabricated antenna show 220MHz and 135MHz bandwidth in Return loss <-10dB referenced to the WLAN(5.2/5.8GHz) band. The measured antenna gain is $4.7{\sim}6.9dBi$ in the WLAN(5.2/5.8GHz) band. The experimental 3-dB beam width in I-plane and H-plane are $73.2^{\circ}/82.75^{\circ}$ for 5.1500Hz, $74.56^{\circ}/83.63^{\circ}$ for 5.3500Hz, and $86.24^{\circ}/85.15^{\circ}$ for 5.7850Hz, respectively.
Keywords
WLAN; Dual-band; Snowflake; Short-pin; Microstrip patch antenna;
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