Design and Fabrication of CPW fed Dual band antenna for WiMAX and WLAN applications
Poonam Thanki
V.T Patel Department of Electronics and Communication, Charotar University of Science and Technology , IN
Keywords: Coplanar Waveguide, Dual band, WLAN, WiMAX, HFSS
Abstract
A Coplanar Waveguide (CPW) fed patch antenna is proposed for dual band operation. The 50 Ω CPW transmission line of width 3mm is used to excite patch. The ground plane, fed line and radiating patch are on one side of FR4 substrate. The dielectric constant and thickness of FR4 substrate are 4.4 and 1.6mm respectively. The proposed antenna has dimensions of 50x50mm2 .The proposed antenna generates two frequency bands one in 3.28GHz -3.73GHz with bandwidth of 450 MHz and second band in 5.54GHz – 5.94GHz with bandwidth of 400 MHz . The first frequency band is suitable for WiMAX (Worldwide Interoperability for microwave access)
and second frequency band is suitable for WLAN (wireless local area network).The proposed antenna generates same frequency bands with improved return loss when triangular slot is created in patch. The proposed antenna is simulated using High Frequency structure Simulator (HFSS).Simulated and measured results shows good agreement with each other.
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