Adaptive multi-band negative-group-delay RF circuits with low reflection

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dc.contributor.authorGómez-García, Roberto
dc.contributor.authorMuñoz-Ferreras, José-María
dc.contributor.authorPsychogiou, Dimitra
dc.contributor.funderMinisterio de Economía, Industria y Competitividad, Gobierno de Españaen
dc.contributor.funderNational Science Foundationen
dc.date.accessioned2021-03-12T11:31:47Z
dc.date.available2021-03-12T11:31:47Z
dc.date.issued2021-02-08
dc.date.updated2021-03-11T10:20:26Z
dc.description.abstractTwo classes of frequency-reconfigurable multi-band negative-group-delay (NGD) circuit networks that feature low-input-power-reflection capabilities are reported. They consist of lossy-complementary-diplexer architectures, in which the NGD properties are obtained within the stopband regions of their lossy multi-band bandstop-filter (BSF) channel. Their complementary lossy multi-band bandpass-filter (BPF) branch absorbs in its terminating resistor the RF-input-signal energy that is not transmitted by the lossy multi-band BSF channel within its stopbands. In this manner, the input-reflectionless/absorptive behavior is realized. The theoretical foundations of the devised lossy-multi-band-BSF-based NGD structures using a coupling-routing-diagram formalism and single-to-multi-band admittance transformations are described. For the first-order case as illustration, guidelines for the synthesis in the bandpass frequency domain are provided. Furthermore, the extension of these multi-band NGD approaches to higher-order and in-series-cascade multi-stage realizations for more-general and wider-band NGD patterning, as well as to two-port/symmetrical designs, is shown. In addition, the conception of multi-functional passive components with NGD characteristics, such as wide-band BPFs and power directional couplers with embedded NGD regions, is also addressed. For experimental-demonstration purposes, an electronically-reconfigurable microstrip prototype of a two-stage-in-series-cascade dual-band NGD circuit is manufactured and measured.en
dc.description.sponsorshipMinisterio de Economía, Industria y Competitividad, Gobierno de España (Project TEC2017-82398-R); National Science Foundation (Award 1731956)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGómez-García, R., Muñoz-Ferreras, J.-M. and Psychogiou, D. (2021) 'Adaptive multi-band negative-group-delay RF circuits with low reflection', IEEE Transactions on Circuits and Systems I: Regular Papers. doi: 10.1109/TCSI.2021.3055416en
dc.identifier.doi10.1109/TCSI.2021.3055416en
dc.identifier.eissn1558-0806
dc.identifier.issn1549-8328
dc.identifier.journaltitleIEEE Transactions on Circuits and Systems I: Regular Papersen
dc.identifier.urihttps://hdl.handle.net/10468/11138
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.rights© 2021, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subjectAbsorptive filteren
dc.subjectBandpass filter (BPF)en
dc.subjectBandstop filter (BSF)en
dc.subjectBandwidthen
dc.subjectComplementary diplexeren
dc.subjectCoupleren
dc.subjectCouplersen
dc.subjectLossy filteren
dc.subjectMicrostripen
dc.subjectMicrostrip circuiten
dc.subjectMulti-functional circuiten
dc.subjectNegative group delay (NGD)en
dc.subjectPlanar circuiten
dc.subjectPropagation lossesen
dc.subjectRadio frequencyen
dc.subjectReconfigurable circuiten
dc.subjectReflectionless filteren
dc.subjectResistorsen
dc.subjectResonant frequencyen
dc.subjectRF analog signal processingen
dc.subjectTunable circuiten
dc.subjectWide-band filteren
dc.titleAdaptive multi-band negative-group-delay RF circuits with low reflectionen
dc.typeArticle (peer-reviewed)en
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