High Performance Asymmetric Coupled Line Balun at Sub-THz Frequency

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dc.bibliographicCitation.firstPage1907
dc.bibliographicCitation.issue9
dc.bibliographicCitation.volume9
dc.contributor.authorAli, Abdul
dc.contributor.authorYun, Jongwon
dc.contributor.authorNg, Herman Jalli
dc.contributor.authorKissinger, Dietmar
dc.contributor.authorGiannini, Franco
dc.contributor.authorColantonio, Paolo
dc.date.accessioned2022-09-02T07:26:24Z
dc.date.available2022-09-02T07:26:24Z
dc.date.issued2019
dc.description.abstractIn this paper, we report a high-performance balun with characteristics suitable for future broadband sub-THz differential circuits. The idea of the balun is based on three asymmetric coupled lines, which enhance the odd mode capacitances to equalize the even/odd mode phase velocities. The inner line of the three asymmetric coupled lines is configured to form the open stub ( λ /2), while the outer lines form short stubs ( λ /4). To further reduce the phase imbalance, the short stubs in one of the arms of the balun are connected with vias and a lower metal layer. The balun is developed using the standard 130-nm SiGe BiCMOSback-end process and EM simulated with ADS momentum and Sonnet. The −10-dB reflection coefficient (S 11 ) bandwidth of the balun is 136 GHz (88–224 GHz). It shows insertion loss (including RF pads) <1.5 dB, phase imbalance <7 degrees, and amplitude imbalance <1 dB at 94–177 GHz. Furthermore, a scaled-down version of the balun operates on the WR-6, WR-5, and WR-4 frequency bands without significant degradation in its performance. Such characteristics of the balun make it an ideal candidate for various broadband differential circuits.eng
dc.description.versionpublishedVersioneng
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/10174
dc.identifier.urihttp://dx.doi.org/10.34657/9212
dc.language.isoengeng
dc.publisherBasel : MDPI
dc.relation.doihttps://doi.org/10.3390/app9091907
dc.relation.essn2076-3417
dc.relation.ispartofseriesApplied Sciences : open access journal 9 (2019), Nr. 9
dc.rights.licenseCC BY 4.0 Unported
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectBroadband baluneng
dc.subjectD-bandeng
dc.subjectDifferential circuitseng
dc.subjectG-bandeng
dc.subjectSiGe BiCMOSeng
dc.subjectTHz baluneng
dc.subject.ddc600
dc.titleHigh Performance Asymmetric Coupled Line Balun at Sub-THz Frequencyeng
dc.typearticleeng
dc.typeTexteng
dcterms.bibliographicCitation.journalTitleApplied Sciences : open access journal
local.doifilter.overrideja
tib.accessRightsopenAccesseng
wgl.contributorIHP
wgl.subjectIngenieurwissenschaftenger
wgl.typeZeitschriftenartikelger
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