Design of a new dual-polarized ultra-wideband planar CPW fed antenna

In this paper we introduce a new compact dual-polarized circular slot antenna fed by two orthogonal CPW semi-discs. In order to achieve a good performance in terms of bandwidth and isolation, several techniques are used. To examine the antenna performances, numerical simulations using CST software were carried out. The obtained results show that the proposed antenna has good matching and isolation lower than −20dB over a broad-band of frequency from 3GHz to 14GHz. These features make the proposed antenna very attractive for UWB applications using polarization-diversity technique.