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Directivity Gain Improvement Method for UWB Coplanar Patch Antenna  

Joo, Chang-Bok (Dept. of Electronic Engineering Kyungnam University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.49, no.6, 2012 , pp. 63-70 More about this Journal
Abstract
This paper discussed on the directive gain improvement method of the U-type ultra wide-band(UWB) planar patch antenna model with CPW feeding. For directive gain improvement, the U-type printed patch antenna model with CPW feeding is reconstructed as a microstrip structure by adding a reflection plane with aperture slot. The reflection coefficient of the reconstructed antenna is less than -6.5 dB(VSWR < 3.3) to the characteristic impedance of $50.08{\Omega}$ and showed the directive radiation patterns with the directive gain of 7.5 dBi ~ 10.1 dBi, the front-back ratio of 17.8 dB ~ 28.7 dB and the range of -3dB radiation angle over ${\pm}30^{\circ}$ to the main beam direction of ${\theta}=0^{\circ}$.
Keywords
UWB antenna; U-type patch antenna; aperture slot; CPW feeding;
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Times Cited By KSCI : 1  (Citation Analysis)
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