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Abstract
A novel compact triple band ACS fed antenna is designed by using a comb shaped radiating strip which operates at different frequencies. Using a radiating strip with comb shaped structure having six teeth, attached along with a trunk shaped portion and a simple rectangular ground lying on the same plane, 26 mm × 15 mm × 1.6 mm sized antenna has been designed on FR-4 substrate with loss tangent 0.02 and relative permittivity 4.4 and simulated using ANSYS HFSS version 16. The antenna covers the three frequencies 1.8 GHz, 3.5 GHz and 5.2 GHz with return loss −20.8396 dB, −27.5453 dB and −16.6921 dB respectively and corresponding gain 0.8, 1.8 and 3.03. The VSWR values obtained for the three frequencies are 1.1997, 1.2503 and 1.3429 respectively. The simulated results of the antenna parameters provided by the antenna when it is operated at the three frequencies are analyzed and it shows that the multiband antenna can be successfully utilized for the wireless applications especially WLAN and WiMAX. A comparative study of the performance of the antenna with that of the other existing antennas with comb shaped radiating strip is also done.
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