Additively Manufactured All-Dielectric Mm-Wave Reflectarray Antenna

This paper presents an additive manufactured dielectric reflectarray antenna for mm-wave communication applications. A dielectric mirror structure is used to reflects the EM-wave instead of conventional metal ground. Meanwhile, the dielectric mirror is properly arranged in the vertical direction to form the reflectarray. Thus, the air layer is used as the phase tuning to achieve stable and broadband radiation. A circularly polarized feed horn is used to illuminate and test the performance of the proposed dielectric reflectarray.