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http://dx.doi.org/10.5515/KJKIEES.2011.22.8.745

The Design and Fabrication of the Triple-Band Planar Monopole Antenna for Coupled U Patch Line and Rectangular Patch  

Lee, Sung-Hun (School of Information and Communication Engineering, Chungbuk National University)
Lee, Seung-Woo (School of Information and Communication Engineering, Chungbuk National University)
Kim, Nam (School of Information and Communication Engineering, Chungbuk National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.22, no.8, 2011 , pp. 745-753 More about this Journal
Abstract
In this paper, the planar monopole antenna for multi-band service is proposed. The proposed antenna, which is a rectangular patch antenna with a U-shaped slit based on a monopole antenna for wide bandwidth characteristic, is designed and analyzed. The antenna size has been miniaturized by using the U-shaped slit. The frequency characteristics are modified and optimized by varying specific parameters. To obtain desired frequency bands, the U-shaped slit and patch lines have been applied. Whole antenna dimensions including the ground plane are $35{\times}50{\times}1\;mm^3$, and the antenna part size is $35{\times}27\;mm^2$. It is fabricated on the FR-4 substrate(${\epsilon}_r=4.4$) using a microstrip line of $50{\Omega}$ for impedance matching. For the measured results, the impedance bandwidth below a VSWR of 2 is 790~916 MHz, 1.74~2.14 GHz, and 2.36~3.13 GHz. The fabricated antenna is satisfied with the aimed impedance bandwidth in GSM/DCS/US-PCS/UMTS/Bluetooth/S-DMB applications.
Keywords
Multi-Band; U-Slit; Planar Monopole Antenna; Internal Antenna;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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