Abstract
This paper presents a compact dual band rectangular microstrip patch antenna for wireless applications. Dual frequency operation is achieved by inserting a pair of symmetric face-to-face U-slots on a top radiating patch. To increase the bandwidth of the antenna, a rectangular slot is inserted inside a ground plane. In addition to compactness, the embedded slots provide two degrees of freedom for tuning the resonant frequencies independently. The proposed antenna meets the required impedance bandwidth, necessary for WiFi (2.405–2.499 GHz) and WiMAX (3.4670–3.5215 GHz) applications. The corresponding gains are 4.9 dBi and 4.84 dBi, at 2.44 and 3.5 GHz, respectively. Good agreement between the simulation results and measurement results is obtained.
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