Design and analysis of 80-W wideband asymmetrical Doherty amplifier

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dc.contributor.authorBathich, Khaled
dc.contributor.authorBöck, Georg
dc.date.accessioned2018-02-12T09:42:42Z
dc.date.available2018-02-12T09:42:42Z
dc.date.issued2014
dc.descriptionDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich.de
dc.descriptionThis publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.en
dc.description.abstractThis paper presents the analysis and design of a wideband asymmetrical Doherty amplifier. The frequency response of the output combining network of the Doherty amplifier with arbitrary back-off level configuration is analyzed. Other bandwidth-limiting factors were discussed and analyzed as well. A number of performance enhancement techniques were taken into consideration to obtain high and flat back-off efficiency over the amplifier design band of 1.7–2.25 GHz. The designed Doherty amplifier had, at 8.0–9.9 dB output back-off, a minimum efficiency of η = 50% [power-added efficiency of 45%], measured near 40 dBm of output power, and over 28% bandwidth. Using digital predistortion (DPD) linearization, an adjacent-channel leakage ratio (ACLR) of −43 dBc was obtained for a single-carrier W-CDMA signal, at 40.9 dBm and 46% of average output power and drain efficiency, respectively. The designed amplifier represents the first wideband Doherty amplifier reported over extended power back-off range.en
dc.identifier.eissn1759-0795
dc.identifier.issn1759-0787
dc.identifier.urihttps://depositonce.tu-berlin.de/handle/11303/7418
dc.identifier.urihttp://dx.doi.org/10.14279/depositonce-6668
dc.language.isoen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subject.ddc620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
dc.subject.otherpower amplifiers and linearizersen
dc.subject.othercircuit design and applicationsen
dc.titleDesign and analysis of 80-W wideband asymmetrical Doherty amplifieren
dc.typeArticle
dc.type.versionpublishedVersion
dcterms.bibliographicCitation.doi10.1017/s1759078714000452
dcterms.bibliographicCitation.issue1
dcterms.bibliographicCitation.journaltitleInternational journal of microwave and wireless technologies
dcterms.bibliographicCitation.originalpublishernameCambridge University Press
dcterms.bibliographicCitation.originalpublisherplaceCambridge
dcterms.bibliographicCitation.pageend18
dcterms.bibliographicCitation.pagestart13
dcterms.bibliographicCitation.volume7
tub.accessrights.dnbdomain
tub.affiliationFak. 4 Elektrotechnik und Informatik::Inst. Hochfrequenz- und Halbleiter-Systemtechnologien::FG Mikrowellentechnikde
tub.affiliation.facultyFak. 4 Elektrotechnik und Informatikde
tub.affiliation.groupFG Mikrowellentechnikde
tub.affiliation.instituteInst. Hochfrequenz- und Halbleiter-Systemtechnologiende
tub.publisher.universityorinstitutionTechnische Universität Berlin

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