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http://dx.doi.org/10.5515/KJKIEES.2008.19.10.1086

Design and Fabrication of the Antenna for Wibro and WLAN Communications Using CPWG Structure  

Lee, Seung-Woo (Division of Information and Communication, Chungbuk National University)
Kim, Nam (Division of Information and Communication, Chungbuk National University)
Rhee, Seung-Yeop (Electronic Communication Engineering, Chonnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.19, no.10, 2008 , pp. 1086-1095 More about this Journal
Abstract
In this paper, we designed and fabricated the trapezoidal antenna using the CPWG structure for Wibro and WLAN communications. This antenna has broadband characteristics using the basic trapezoidal antenna, and an H-shaped parasitic patch is making an expansion of resonance bandwidth and bringing stability of impedance matching. Especially, CPWG structure is combined two kinds of the structure which of a monopole antenna and a coplanar waveguide antenna. They make up for the weak point of the CPW which is variation of impedance matching according to varying the gap or size of the feed line and the ground. The designed antenna has occurred resonances of which the band of 2.2 GHz to 4.6 GHz(70.5 %) below the return loss of -10 dB($VSWR{\leq}2$) obtained in measurement, and it has an omnidirectional radiation pattern of H-plane. In addition, the changes of impedance matching appear slightly caused by the effects of the ground plane and the feed line.
Keywords
CPWG; Trapezoidal Antenna; Wibro; WLAN;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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