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Design and Analysis of UWB Circular Patch Antenna Using Microstrip Line
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 Title & Authors
Design and Analysis of UWB Circular Patch Antenna Using Microstrip Line
Kim, Jin-Ju; Kim, Sun-Woong; Park, Jung-Jin; Jeong, Min-A; Park, Kyung Woo; Choi, Dong-You;
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The proposed circular patch antenna was designed to include relative bandwidth of above 25% as designed by the FCC in the FCC in the 3.1 ~ 10.6 GHz band. The antenna was induced to have a wide band characteristic through two structures of the usual microstrip line and a microstrip line with a linear change in impedance. The proposed finally antenna was designed using an FR4_epoxy substrate with 4.7% permittivity, 0.02 of loss tangent, and 1.6 mm of thickness, and was simulated with the use of HFSS made by Ansys. Return loss at frequency, VSWR, radiation pattern and the gain of the antenna were analysed. As a result, if satisfied a return loss of -10 dB and from 2.28 ~ 13.35 GHz, showing about the bandwidth of 11.89 GHz, and the radiation pattern was unidirectional in all bands. The antenna gain gradually increased from 2 ~ 8 GHz and had the highest gain of 7.92 dBi at 8 GHz. and the gain gradually decreased in the 9 ~ 12 GHz band.
UWB;Circular pathc antenna;Microstrip line;
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