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Digital Predistorti...
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Amin, ShoaibHögskolan i Gävle,KTH,Signalbehandling,ACCESS Linnaeus Centre,University of Gävle, Sweden,Elektronik,Department of Signal Processing, School of Electrical Engineering, KTH
(author)
Digital Predistortion of Single and Concurrent Dual BandRadio Frequency GaN Amplifiers with Strong NonlinearMemory Effects
- Article/chapterEnglish2017
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IEEE Press,2017
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LIBRIS-ID:oai:DiVA.org:kth-197368
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-197368URI
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https://doi.org/10.1109/TMTT.2016.2642948DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-23117URI
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20161205
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Electrical anomalies due to trapping effects in gallium nitride (GaN) power amplifiers (PAs) give rise to long-term or strong memory effects. We propose novel models based on infinite impulse response fixed pole expansion techniques for the behavioral modeling and digital predistortion of single-input single-output (SISO) and concurrent dual-band GaN PAs. Experimental results show that the proposed models outperform the corresponding finite impulse response (FIR) models by up to 17 dB for the same number of model parameters. For the linearization of a SISO GaN PA, the proposed models give adjacent channel power ratios (ACPRs) that are 7-17 dB lower than the FIR models. For the concurrent dual-band case, the proposed models give ACPRs that are 9-14 dB lower than the FIR models.
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Händel, PeterKTH,Signalbehandling,ACCESS Linnaeus Centre,Department of Signal Processing, School of Electrical Engineering, KTH(Swepub:kth)u1htctiy
(author)
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Rönnow, DanielHögskolan i Gävle,Elektronik(Swepub:hig)dalrow
(author)
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KTHSignalbehandling
(creator_code:org_t)
Related titles
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In:IEEE transactions on microwave theory and techniques: IEEE Press65:7, s. 2453-24640018-94801557-9670
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