Design of dual-polarized MIMO linear antenna arrays with increased port-to-port isolation

Abstract

In the paper selected issues of feeding networks for dual-polarized linear antenna arrays designed for 2×2 MIMO applications are described. The influence of topology of corporate feeding network on achieved port-to-port isolation is shown as the result of computer simulations. As an example, four element linear arrays of two-layer electromagnetically coupled microstrip antennas designed for U-NII 5.15-5.85 GHz frequency band are examined in CST Microwave Studio.