Physical phaseplate for the generation of a millimeter-wave hermite-Gaussian beam

This paper demonstrates the design, fabrication and characterization of a physical phaseplate, which transforms plane waves to Hermite-Gaussian mode beams. The phaseplate is designed for a HG11 mode, working at E-band from 71 to 76 GHz. Simulations were run in ANSYS HFSS, a full-wave electromagnetic simulator, and compared to measured results for phaseplates fabricated with laminate substrates and polymer sheets. The simulations and measurements are in good agreement and demonstrate the designed Hermite-Gaussian beam.