Development of a Sealed 3D Printed Dielectric Filled Waveguide Filter with Embedded Lattices

In this paper the authors present the development process of a novel 3D printed 4-pole dielectric filled waveguide filter which was implemented with embedded lattice elements. The final part is sealed to simplify the metallisation process. The authors provide useful fabrication techniques and tuning methods to improve the manufactured part and make the design less sensitive to fabrication tolerances.