Sieganschin, AntonAntonSieganschinTegowski, BartoszBartoszTegowskiKölpin, AlexanderAlexanderKölpinJacob, ArneArneJacob2022-12-052022-12-052022-0924th International Microwave and Radar Conference (MIKON 2022)http://hdl.handle.net/11420/14261The seventh-order filter, this contribution discusses, relies on folded circular substrate integrated waveguide (FCSIW) cavities. It comprises two different cavity types and exhibits 5% fractional bandwidth at 10-GHz center frequency. Simulation and measurements demonstrate its functionality. According to its order, the filter shows high isolation over a large frequency band. The experiments validate the proposed layout procedure for FCSIW cavity filters of arbitrary filter order.enBandpass filtersfolded substrate integrated waveguide (FSIW)substrate integrated waveguide (SIW)X-bandHigher-Order Filters With Folded Circular SIW CavitiesConference Paper10.23919/MIKON54314.2022.9924927Other