Turkeli, AlperGorur, Ali KursadAltuncu, Yasemin2024-11-072024-11-072023978-2-87487-072-9https://doi.org/10.23919/EuMC58039.2023.10290702https://hdl.handle.net/11480/1383753rd European Microwave Conference (EuMC) -- SEP 19-21, 2023 -- Berlin, GERMANYIn this study, a new dual-wideband four-port multi-input multi-output (MIMO) filtenna structure is presented for sub-6 GHz 5G communication systems. Each filtenna element on the MIMO structure is constructed by coupling a dual-wideband filter to the feeding line of a conventional broadband monopole antenna. Four identical filtenna elements are arranged perpendicular to each other for the sake of high isolation and polarization diversity. Furthermore, a new isolation performance improvement approach is introduced by locating a patch decoupling element on the ground plane. The designed four-port MIMO filtenna was fabricated and measured in a very good agreement. The frequency bands were measured at the center frequencies of 3.3 and 5.75 GHz with the fractional bandwidths of 42.4 and 22.6 %, respectively.eninfo:eu-repo/semantics/closedAccessdual-widebandmulti-input multi-output (MIMO)filtennamulti-mode resonatorConference Object79079310.23919/EuMC58039.2023.102907022-s2.0-85177552037N/AWOS:001101795000196N/A