3D Antennas, Metamaterials, and Additive Manufacturing

This paper presents several demonstrators that utilize advanced additive manufacturing (AM) to rapidly prototype antennas, RF components for microwave and mm-wave applications. Antenna substrates with tailored permittivity; lenses, reflectarray with locally varied dielectric properties; and metamaterials can be fabricated by using extrusion based AM processes such as fused filament fabrication method to realize high gain antenna systems with low material cost, time-saving and low impact to the environment.