Abstract
This paper presents a state-of-the-art 3D printed dielectric reflectarray antenna featuring one-shot deployability and wide-angle beam-scanning ability. The design is enabled by a series of "kirigami"-inspired two-stage snapping-like element structure that can be retracted by 66% to save space. The prototype is fabricated with stereolithography 3D printing method with Formlabs Flexible 80A photopolymer. A bi-focal phase distribution method is utilized to optimize the RF performance of the array, realized -30° to -10° and 10° to 30° beam-scaning ability. The outcome of this work demonstrated a high-performance dielectric reflectarray design with ease of fabrication for 5G and satellite communication applications.