Tri-Phasing Modulation for Efficient and Wideband Radio Transmitters

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Lemberg, Jerry Martelius, Mikko Kosunen, Marko Roverato, Enrico Stadius, Kari Anttila, Lauri Valkama, Mikko Ryynanen, Jussi 2018-08-21T13:46:27Z 2018-08-21T13:46:27Z 2018-09
dc.identifier.citation Lemberg , J , Martelius , M , Kosunen , M , Roverato , E , Stadius , K , Anttila , L , Valkama , M & Ryynanen , J 2018 , ' Tri-Phasing Modulation for Efficient and Wideband Radio Transmitters ' IEEE Transactions on Circuits and Systems I: Regular Papers , vol 65 , no. 9 , pp. 3085-3098 . DOI: 10.1109/TCSI.2018.2821269 en
dc.identifier.issn 1549-8328
dc.identifier.other PURE UUID: 966579bc-77ba-47ac-9a7c-1ee904218a21
dc.identifier.other PURE ITEMURL:
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dc.description | openaire: EC/H2020/704947/EU//ADVANTAG5
dc.description.abstract In this paper, we show that amplitude transitions that are inherent to the multilevel outphasing radio transmitter architecture distort the transmitted signal due to time-domain discontinuities. In order to address this challenge, we propose a new transmitter architecture called tri-phasing which avoids discontinuities in signal waveforms and thus achieves significantly better linearity than multilevel outphasing. The output waveform in tri-phasing can be made continuous by representing the baseband signal with three components. One of the three components is amplified by discrete amplitude steps, whereas the other two are used to compensate the instantaneous shift in the output waveform due to the discrete amplitude step and to provide fine amplitude resolution. An implementation of the tri-phasing transmitter requires three phase modulators and additional digital signal processing. The system-level simulations performed in this paper demonstrate that the ACLR of a multilevel outphasing transmitter with 4 amplitude levels and 10-bit phase resolution is limited to -48 dBc, when simulated with a 100 MHz carrier-aggregated LTE downlink signal at 2.46 GHz carrier frequency. The proposed tri-phasing transmitter achieves -58 dBc ACLR with the same simulation parameters, indicating that continuous amplitude transitions can significantly improve the transmitter linearity. en
dc.format.extent 3085-3098
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation info:eu-repo/grantAgreement/EC/H2020/704947/EU//ADVANTAG5
dc.relation.ispartofseries IEEE Transactions on Circuits and Systems I: Regular Papers en
dc.relation.ispartofseries Volume 65, issue 9 en
dc.rights openAccess en
dc.subject.other Electrical and Electronic Engineering en
dc.subject.other 213 Electronic, automation and communications engineering, electronics en
dc.title Tri-Phasing Modulation for Efficient and Wideband Radio Transmitters en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Department of Electronics and Nanoengineering
dc.contributor.department Aalto University
dc.contributor.department Tampere University of Technology
dc.subject.keyword CMOS.
dc.subject.keyword digital
dc.subject.keyword DIPM
dc.subject.keyword interpolation
dc.subject.keyword Outphasing
dc.subject.keyword phase modulation
dc.subject.keyword phase modulator
dc.subject.keyword switch-mode PA
dc.subject.keyword transmitter
dc.subject.keyword tri-phasing
dc.subject.keyword Electrical and Electronic Engineering
dc.subject.keyword 213 Electronic, automation and communications engineering, electronics
dc.identifier.urn URN:NBN:fi:aalto-201808214667
dc.identifier.doi 10.1109/TCSI.2018.2821269
dc.type.version acceptedVersion

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