During the months of February and March 2022, ESR 10 – Luke Robins had his third Secondment at CAU university utilising their excellent experience working with dielectrics and filters. Collaborating with Chad Bartlett and Abdulrahman Widaa (ESRs 6 & 7) under the guidance of Prof. Michael Höft for a planned journal publication. The secondment proved very productive, with the fabrication of five prototype designs which are now being characterized back in Graz. This secondment also provided a great networking opportunity with other PHD students working in Kiel and will lead to future collaboration opportunities.