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http://dx.doi.org/10.5515/KJKIEES.2012.23.12.1327

Design of a Double-Faced Monopole Antenna Using the Coupling Effect of Induced Currents  

Choi, Young (College of Electrical and Computer Engineering, Chungbuk National University)
Lee, Seungwoo (College of Electrical and Computer Engineering, Chungbuk National University)
Kim, Nam (College of Electrical and Computer Engineering, Chungbuk National University)
Publication Information
Abstract
In this paper, the dual-faced monopole antenna, which is arranged by numerous rectangular ring patches in sequence for the multi-bands is proposed. The ring type structure of the patch can be increased the bandwidth. Therefore the bandwidth and beam width are improved by using multiple arrayed patches. When the ring type patches are inserted serially, the resonance frequencies are occurred by the current flow from the first ring patch. It is possible because the gap between the patches is very narrow. In addition, if the patches are composed on the same plane as the feed-line, fabrication could be very difficult because the gap between the patches is extremely narrow. The thickness and permittivity of the antenna, moreover, are very important parameters because both sides of the substrate are used. We finally found the optimal thickness and permittivity to generate the coupling effect by simulation. All patches are consisted of 4-steps which the patch size was decreased 85 % by each step. In conclusion, the resonant frequency bands are 1.75~2.6 GHz(850 MHz), 3.24~3.46 GHz(220 MHz), 3.8~4.0 GHz(200 MHz), and 4.4~4.9 GHz(500 MHz).
Keywords
Ring Antenna; Monopole; Double-faced; Coupling Effect;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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