Detailed Design Procedure for Low-Cost High-Efficiency 3D Printed Transmitarray Antennas for mm-wave Applications

In this work, a measurement-validated mm-wave 3D-printed transmitarray antenna together with a detailed de-scription of its design procedure will be presented. The purpose is to provide the reader with a comprehensive all-in-one guide for the transmitarray design process to allow for rapid deployment of cheap 3D-printed transmitarray antennas. The description will provide an example of a unit element and detail the mathematics required to calculate and realize a transmitarray transmission surface. Additionally, the paper will present a design example of an mm-wave 3D-printed transmitarray realization of the proposed antenna structure with accompanying measurement validation of its performance. The measurement shows extremely good agreement with the simulation and confirms the proposed design methods' ability to provide cheap and easily manufac-turable 3D-printed transmitarray antennas, even for mm-wave frequencies.