Microwave Meta-lens for Generating Polarization-Independent refracted waves

In this paper, a transmissive-type metalens is proposed to realize independent manipulation of orthogonal circularly polarized wave in microwave region. Based on the combination of propagation phase and geometry phase principles, the opposite circularly polarized transmitted wave can be deflected into independent and arbitrary directions. Experimental measurement are conducted and effectively verified the feasibility of the proposed theory for artificial manipulation of circular polari-zation manipulation in microwave region.