3D Printed One-Shot Deployable Flexible “Kirigami” Dielectric Reflectarray Antenna for mm-Wave Applications

This paper presents a first-of-its-kind fully 3D-printed mm-wave reflectarray with one-shot deployability. It consists of an array of kirigami-inspired flat-foldable dielectric-based unit cells featuring an unprecedented reduction in volume as compared to its conventional counterparts. The prototype is fabricated with high-resolution stereolithography 3D printing together with flexible photosensitive resin. The outcome of this work demonstrates a low-cost, high-performance dielectric reflectarray design that can be folded to 1/3 of the full-scale volume which can be used for outer-space, 5G and various other terrestrial applications.