Monolithically-integrated nested ridge waveguide dual-channel filters

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dc.contributor.authorDogan, Berkay
dc.contributor.authorPsychogiou, Dimitra
dc.date.accessioned2026-09-16T09:45:01Z
dc.date.available2026-09-16T09:45:01Z
dc.date.issued2025-11-19
dc.description.abstractThis paper presents a novel highly-miniaturized dual-channel 3D filter design concept. It is based on a new nested waveguide resonator approach that allows the excitation of two fully-isolated fundamental resonances within the volume of a conventional ridge waveguide. Size compactness is achieved by: i) re-using traditionally unused areas of a ridge waveguide and ii) monolithic integration enabled by stereolithography apparatus 3D printing. A novel ridge-waveguide/waveguide (RW-WG) resonator concept is proposed and analysed in detail for the realization of two-channel filters. For proof-of-concept validation purposes, a dual-channel RW-WG-based bandpass filter (BPF) was designed, manufactured and tested. It exhibits a second order low frequency filtering channel at 6.77 GHz with minimum in-band insertion loss (IL) of 0.16 dB (Qeff of 1,060) and 3 dB fractional bandwidth (FBW) of 7%, and a second order highfrequency filtering channel at 15.39 GHz with minimum IL of 0.2 dB Qeff of 1,365) and 3 dB FBW of 5.3%.en
dc.description.sponsorshipTaighde Éireann - Research Ireland|13/RC/2077_P2
dc.description.sponsorshipTaighde Éireann - Research Ireland|20/RP/8334
dc.description.versionAccepted Version
dc.format.extent4
dc.format.mimetypeapplication/pdfen
dc.identifier.authororcidDogan, Berkay
dc.identifier.authororcidPsychogiou, Dimitra§0000-0003-1936-4026
dc.identifier.citationDogan, B. and Psychogiou, D. (2025) ‘Monolithically-integrated nested ridge waveguide dual-channel filters’, 2025 55th European Microwave Conference (EuMC). Utrecht, Netherlands: IEEE, pp. 857–860. https://doi.org/10.23919/EuMC65286.2025.11235292.
dc.identifier.doi10.23919/EuMC65286.2025.11235292
dc.identifier.endpage860
dc.identifier.isbn9782874870811
dc.identifier.startpage857
dc.identifier.urihttps://hdl.handle.net/10468/19258
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.relation.ispartofseries2025 55th European Microwave Conference, EuMC 2025
dc.relation.urihttps://www.scopus.com/pages/publications/105029597254
dc.rights© 2025, European Microwave Association (EuMA).
dc.rights.accessrightsopen access
dc.rights.licensenameAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.statusPeer reviewed
dc.subject3D printing
dc.subjectAdditive manufacturing (AM)
dc.subjectBandpass filter
dc.subjectDual-channel filter
dc.subjectMonolithic integration
dc.subjectRidge waveguide
dc.subjectStereolithography apparatus (SLA)
dc.subject[TyndallMicroNano]
dc.subject[EngineeringArchitecture]
dc.titleMonolithically-integrated nested ridge waveguide dual-channel filtersen
dc.typeConference item
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