Ceramic additive manufacturing as an alternative for the development of miniaturized microwave filters

Continuous developments in additive manufacturing (AM) processes have created new tools to respond to some of the challenges facing microwave filters. In this work, we propose the use of the AM process known as lithography-based ceramic manufacturing (LCM) as a way to miniaturize microwave filters. With this technique, very complex shapes can be reproduce with high fidelity out of ceramic materials. Given the outstanding miniaturization properties of ceramics, it is possible to adapt classical filter configurations into ceramic structures, thus drastically reducing their size. Two application examples manufactured with LCM will be presented and discussed in this paper, showcasing the possibilities of this technology.