Wide-angle Scanning Metasurface-Enhanced Array for Next-Generation Communications

The problem of synthesizing a slant +/-45 [deg] dual-polarization waveguide array with wide scan capabilities for 5G applications is addressed in this work. The exploitation of an advanced low-profile wide-angle impedance matching (WAIM) superstrate is considered to achieve such a goal, and an innovative system-by-design (SbD)-inspired strategy is customized to the solution of the arising synthesis problem. The results of an extensive full-wave numerical validation are presented to illustrate the effectiveness and performance of the resulting arrangement in terms of scan range, impedance and gain stability, and port isolation.