Algorithm-Based Encoding Metasurface for Beam Steering at 60 GHz

A metasurface for a beam steering at high angle is designed, fabricated, and characterized. Based on an optimization algorithm called “Pattern Search”, an optimal configuration is quickly obtained. The simulation of the complete metasurface using CST Microwave Studio software and measurements demonstrate a beam steering up to 44° with low loss of about 3 dB and over the frequency range 58 - 61 GHz.