Design of a compact UWB antenna for multi-band wireless applications

摘要

The paper presents a compact planar UWB antenna for multiband wireless applications. The antenna is made by cutting beveling slots at the edges of a patch and then inserting a circular slot at the center of the patch. The overall dimension of the antenna is 25×35×1.6 mm. It is built on an FR4 substrate with a relative permittivity of 4.4. The antenna offers a wide bandwidth with resonating frequencies at 5 GHz, 6 GHz, 7 GHz, and 9 GHz making it valuable for multi-band wireless applications. Also, the proposed antenna achieves a reduction in its overall size as compared to similar planar UWB antenna.