Abstract
This letter presents an multi-port, multiple polarization, UWB diversity antenna array. The unit cell antenna is constructed from a basic square monopole antenna. With suitable modifications in the radiating plane and the ground plane, the unit cell antenna is designed to operate between 2.9 GHz–12 GHz to cover the entire UWB range. The designed UWB radiator is then replicated within a small space to generate triple polarization. The proposed unit cell antenna has the compact size of 14×24 mm2. Measured results show that the proposed antenna has a wide bandwidth ranging from 3 to 12 GHz with high port isolation which demonstrate the proposed diversity antenna can be a good candidate for UWB applications. The return loss obtained for the antenna is above 20 dB. It has good voltage standing wave ratio.
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