Emerging technologies and concepts for 5G applications — A. making additive manufactured ceramic microwave filters ready for 5G

Additive manufacturing (AM) techniques for filter applications have proven to be vital in enabling a variety of forms and shapes best suitable for 5G application. However, in order to guarantee a good RF performance of the passive components, certain aspects have to be taken into account. When it comes to dielectric resonators manufactured in ceramic AM, the quality of the metallization is crucial. Based on a simple prototype, this paper reports on the performance when using an advanced coating technique applied to a 3D printed ceramic body.