Abstract
An ultra-wideband (UWB) dual-polarized microstrip slot antenna with high port isolation and planar structure is presented in this letter. This antenna consists of a monopole and a tapered microstrip feed line, they are used for obtaining UWB characteristic and generating two orthogonal polarization modes. Furthermore, the good impedance matching can be attained through etching slots on the ground plane. The simulated results point out that the antenna can cover the input impedance bandwidth of 3.1∼10.6 GHz with reflection coefficient <−10 dB, and the port isolation is better than 22 dB over the whole operating band. It also has a good radiation performance and is appropriate for UWB applications.
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