hig.sePublikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Modeling and digital predistortion of class-D outphasing RF power amplifiers
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för elektronik, matematik och naturvetenskap, Elektronik. (Elektronik)
Linköping University. (Department of Electrical Engineering)
Vrije Universiteit Brussel. (ELEC)
Högskolan i Gävle, Akademin för teknik och miljö, Avdelningen för elektronik, matematik och naturvetenskap, Elektronik. (Eletronik)
Vise andre og tillknytning
2012 (engelsk)Inngår i: IEEE transactions on microwave theory and techniques, ISSN 0018-9480, E-ISSN 1557-9670, Vol. 60, nr 6, s. 1907-1915Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents a direct model structure for describing class-D outphasing power amplifiers (PAs) and a method for digitally predistorting these amplifiers. The direct model structure is based on modeling differences in gain and delay, nonlinear interactions between the two paths, and differences in the amplifier behavior. The digital predistortion method is designed to operate only on the input signals' phases, to correct for both amplitude and phase mismatches. This eliminates the need for additional voltage supplies to compensate for gain mismatch. Model and predistortion performance are evaluated on a 32-dBm peak-output-power class-D outphasing PA in CMOS with on-chip transformers. The excitation signal is a 5-MHz downlink WCDMA signal with peak-to-average power ratio of 9.5 dB. Using the proposed digital predistorter, the 5-MHz adjacent channel leakage power ratio (ACLR) was improved by 13.5 dB, from -32.1 to -45.6 dBc. The 10-MHz ACLR was improved by 6.4 dB, from -44.3 to -50.7 dBc, making the amplifier pass the 3GPP ACLR requirements.

sted, utgiver, år, opplag, sider
IEEE Press, 2012. Vol. 60, nr 6, s. 1907-1915
HSV kategori
Identifikatorer
URN: urn:nbn:se:hig:diva-11173DOI: 10.1109/TMTT.2012.2187532ISI: 000304859000016Scopus ID: 2-s2.0-84861808800OAI: oai:DiVA.org:hig-11173DiVA, id: diva2:471211
Prosjekter
Radiomätteknik för svagt ickelinjära system
Forskningsfinansiär
Swedish Research CouncilTilgjengelig fra: 2012-01-02 Laget: 2012-01-02 Sist oppdatert: 2018-03-13bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstScopus

Personposter BETA

Landin, Per NiklasIsaksson, Magnus

Søk i DiVA

Av forfatter/redaktør
Landin, Per NiklasIsaksson, Magnus
Av organisasjonen
I samme tidsskrift
IEEE transactions on microwave theory and techniques

Søk utenfor DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 1179 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf