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http://dx.doi.org/10.5515/KJKIEES.2011.22.2.265

Studies on Miniaturization and Notched Wi-Fi Bandwidth for UWB Antenna Using a Wide Radiating Slot  

Beom, Kyeong-Hwa (Department of Electronic Engineering, Chonbuk National University)
Kim, Ki-Chan (Department of Electronic Engineering, Chonbuk National University)
Jo, Se-Young (Department of Electronic Engineering, Chonbuk National University)
Ko, Young-Ho (Department of Electronic Engineering, Chonbuk National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.2, 2011 , pp. 265-274 More about this Journal
Abstract
In this paper, it is studied on wide radiating slot antenna's miniaturization for ultra wide-band(UWB) technologies and notch structure to prevent interference between UWB systems and existing wireless systems for using Wi-Fi service of IEEE standards 802.11 a/n. Proposed antenna that wide slot is decreased from $\lambda/2$ to $\lambda/4$ length of resonant frequency has decreased by 72 % compared with conventional antenna. And optimized T-shaped CPW-fed stub has satisfied UWB bandwidth for 3.0~11.8 GHz. Then, creating 2-order Hilbert curve slot line in the stub's patch area, 4.9~5.6 GHz that centered frequency is 5 GHz is eliminated. Finally, the designed antenna constructed on FR4-epoxy has $20{\times}15\;mm^2$ dimension. The measured results that are obtained return loss under -10 dB through 3.2~11.8 GHz without Wi-Fi bandwidth, a linear phase characteristic, a stable group delay, and omnidirectional radiation patterns are presented.
Keywords
UWB; Wide Radiating Slot; Miniaturization; Wi-Fi Notch;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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