Additively Manufactured Six-Port for mm-Wave Applications

This work presents, for the first time, an additively manufactured six-port for applications in the mm-Wave frequency range. The formative body of the structure is generated by a low-cost SLA photopolymer printing system. Conductive coating is subsequently applied by an electroless silver plating process that is in turn improved by the slotted waveguide approach. Despite the complex geometry, strict dimensional requirements for correct phase relations and large system size due to measurement feed paths, the obtained measurement results indicate promising future prospects towards practical applications.