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http://dx.doi.org/10.5515/KJKIEES.2014.25.10.1040

Development of Quad-Band Printed Monopole Antenna Using Coupling Effect of Dual Rectangular Rings and L-Slots on the GND  

Shin, Yong-Jin (School of Information and Communication Engineering, Chungbuk National University)
Lee, Seungwoo (School of Information and Communication Engineering, Chungbuk National University)
Kim, Nam (School of Information and Communication Engineering, Chungbuk National University)
Publication Information
Abstract
In this paper, a quad-band antenna for DCS1800, PCS1900, WCDMA, WLAN and Mobile WiMAX application is proposed. The proposed antenna is a printed monopole structure, and consists of two rectangular ring-shaped radiating patches on the front side and two different size of L-shaped slots on the back side(ground plane). Two rectangular ring radiation patches are respectively resonant at 2 GHz and 3.5 GHz bands, and additional resonance is occurred at 5.3 GHz by the coupling effect between two ring patches. In addition, the optimized matching characteristic is obtained by controlling the gaps. Also, by adding two L-slots on the ground plane, additional resonant frequency band of 5.6 GHz is occurred. Finally the measured bandwidths of the proposed antenna below -10 dB return loss are 1,200 MHz(1.6~2.8 GHz), 800 MHz(3.2~4.0 GHz), 300 MHz(5.14~5.44 GHz), and 690 MHz(5.56~6.25 GHz). The radiation patterns have the omni-directional characteristic, and the measured antenna average gains at resonant bands are 0.86~4.07 dBi.
Keywords
Multi-Band Antenna; Monopole Antenna; Rectangular Ring Shaped; Coupling Effect; L-Slots;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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