Metasurface Interlaced SR CP Patch with the Capability to Change Polarization Diversity

Anotace: In this work, an affordable solution for the improved performance of circular polarization diversity array antenna by helping metasurface structure (MTS) is presented. The basic structure includes a multi-input feed network which is ended to a 2×5 sequentially rotated subarray. A layer of MTS has been used to modify basic antenna characteristics of inspiring ref. [5]. This innovation is aimed to increase the bandwidth of basic antenna from 14.7% (5.05-5.85 GHz) to 37.8% (4.5-6.6 GHz), and 3-dB AR about 4%. Employing MTS layer leads to an increase in the gain of the antenna to 15 dBic. More details of the antenna are reported in the text.