A Polarization-Independent Transmissive Metalens In The Microwave Band

The metalens plays an irreplaceable role in scientific technologies for its gain enhancement and focusing characteristics. However, there are few studies on polarization-independent metalens in the microwave band. In this paper, a polarization-independent transmissive metalens working in the 20 GHz is proposed and designed. Simulation results verify that the metalens can focus the incident wave with an arbitrary polarization state in the working frequency. The designed metalens has potential applications in high-gain antennas and microwave imaging.