Abstract
A novel trapezoidal slot patch antenna with an embedded trapezoidal strip is proposed for satisfying wireless local area network (WLAN) and worldwide interpretability for microwave access (WiMAX) applications simultaneously. The proposed antenna consists of a rectangular radiation patch with an etched trapezoidal slot and an embedded trapezoidal strip on the top and a beveled ground on the bottom side. By carefully selecting the width of the radiation patch and length of the beveled ground, the proposed antenna can generate two separate bands. The measured results show that the 10dB return loss bandwidths of the proposed antenna are 430MHz (2.30{2.73GHz) and 3460MHz (3.21{6.67GHz), which can cover both the WLAN bands (2.4{2.484GHz, 5.15{5.35GHz, and 5.725{ 5.825GHz) and the WiMAX bands (2.4{2.6GHz, 3.4{3.6GHz, and 5.25{5.85GHz). Furthermore, good omnidirectional radiation patterns with appreciable gain are obtained over the operating bands.
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