Ultra-Compact Inkjet-Printed Folded Waveguide Resonator-Based Bandpass Filters

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dc.contributor.authorDogan, Berkay
dc.contributor.authorPatil, Deepal Deepak
dc.contributor.authorPsychogiou, Dimitra
dc.contributor.funderTaighde Éireann - Research Ireland
dc.date.accessioned2026-09-16T11:34:01Z
dc.date.available2026-09-16T11:34:01Z
dc.date.issued2025-11-19
dc.description.abstractA concept to develop ultra-compact self-packaged 3D waveguide bandpass filter (BPF) is reported. It is based on inkjet-printed 3D folded-waveguide resonators. Size compactness is achieved using: i) a miniaturized waveguide resonator geometry and ii) monolithic integration by employing a two-material piezo drop-on-demand process. The operating principles of the folded-waveguide resonator concept are presented using eigenmode simulations while taking into consideration the process manufacturing capabilities. The applicability of the folded waveguide resonator concept to highly-miniaturized monolithic BPF is explored through the design and manufacturing of a second-order BPF that exhibits: i) a passband centred at 10.73 GHz with minimum in-band insertion loss (IL) of 2.65 dB and a 3 dB fractional bandwidth (FBW) of 21.6%. Furthermore, it occupies an ultra-compact volume of only 0.34λ0 x 1.26λ0 x 0.16λ0 and only weighs 1.16 g.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.authororcidPatil, Deepal Deepak§0000-0002-0333-5207
dc.identifier.authororcidPsychogiou, Dimitra§0000-0003-1936-4026
dc.identifier.citationDogan, B., Patil, D.D. and Psychogiou, D. (2025) ‘Ultra-compact inkjet-printed folded waveguide resonator-based bandpass filters’, 2025 55th European Microwave Conference (EuMC). Utrecht, Netherlands: IEEE, pp. 775–778. https://doi.org/10.23919/EuMC65286.2025.11235281
dc.identifier.doi10.23919/EuMC65286.2025.11235281
dc.identifier.endpage778
dc.identifier.isbn9782874870811
dc.identifier.startpage775
dc.identifier.urihttps://hdl.handle.net/10468/19259
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/105029571049
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.subjectAdditive manufacturing (AM)
dc.subjectBandpass filter (BPF)
dc.subjectInkjet printing
dc.subjectMonolithic integration
dc.subjectMulti-material printing
dc.subjectMulti-process printing
dc.subjectPiezo jetting
dc.subjectWaveguide filter
dc.subject[TyndallMicroNano]
dc.subject[EngineeringArchitecture]
dc.titleUltra-Compact Inkjet-Printed Folded Waveguide Resonator-Based Bandpass Filtersen
dc.typeConference item
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