Abstract
This paper proposes a compact (46×50×0.16 mm3) multiband patch antenna for Wi-Fi, WiMAX, WLAN and satellite applications. The antenna consists of three I shape, two L shape and one F shape patch. The length of the patches and the thickness of Fr-4 substrate are varied to find out the optimized dimensions at which antenna gives the best performance. The antenna has three significant frequency bands having bandwidth of 500MHz (2.10–2.60GHz), 2.80GHz (3.02–5.82GHz) and 2.50GHz (7.00–9.50GHz). The proposed antenna maintains same radiation characteristics for all of the supported frequency bands. For all frequencies the antenna input impedance is matched with 50 Ω feeder lines. The antenna is simulated using CST Microwave Studio software. The simulated VSWR, reflection coefficient, radiation patterns, directivity, half power beamwidth (HPBW), realized peak gains and radiation efficiency of the antenna are presented.
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