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Digital Predistorti...
Digital Predistortion of Single and Concurrent Dual BandRadio Frequency GaN Amplifiers with Strong NonlinearMemory Effects
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- Amin, Shoaib (författare)
- Högskolan i Gävle,KTH,Signalbehandling,ACCESS Linnaeus Centre,University of Gävle, Sweden,Elektronik,Department of Signal Processing, School of Electrical Engineering, KTH
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- Händel, Peter (författare)
- KTH,Signalbehandling,ACCESS Linnaeus Centre,Department of Signal Processing, School of Electrical Engineering, KTH
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- Rönnow, Daniel (författare)
- Högskolan i Gävle,Elektronik
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(creator_code:org_t)
- IEEE Press, 2017
- 2017
- Engelska.
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Ingår i: IEEE transactions on microwave theory and techniques. - : IEEE Press. - 0018-9480 .- 1557-9670. ; 65:7, s. 2453-2464
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Behavioral modeling
- concurrent dual band
- digital predistortion (DPD)
- finite impulse response (FIR)
- infinite impulse response (IIR)
- power amplifiers (PAs)
- radio frequency
- single-input single-output (SISO)
- Intelligent industri
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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