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Pushing the Linearity Limits of a Digital Polar Transmitter. / Hashemi, Mohsen; Alavi, Morteza S.; De Vreede, Leo C.N.

EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference. Piscataway, NJ, USA : Institute of Electrical and Electronics Engineers (IEEE), 2018. p. 174-177 8539964.

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Harvard

Hashemi, M, Alavi, MS & De Vreede, LCN 2018, Pushing the Linearity Limits of a Digital Polar Transmitter. in EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference., 8539964, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, USA, pp. 174-177, 13th European Microwave Integrated Circuits Conference, EuMIC 2018, Madrid, Spain, 24/09/18. https://doi.org/10.23919/EuMIC.2018.8539964

APA

Hashemi, M., Alavi, M. S., & De Vreede, L. C. N. (2018). Pushing the Linearity Limits of a Digital Polar Transmitter. In EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference (pp. 174-177). [8539964] Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.23919/EuMIC.2018.8539964

Vancouver

Hashemi M, Alavi MS, De Vreede LCN. Pushing the Linearity Limits of a Digital Polar Transmitter. In EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference. Piscataway, NJ, USA: Institute of Electrical and Electronics Engineers (IEEE). 2018. p. 174-177. 8539964 https://doi.org/10.23919/EuMIC.2018.8539964

Author

Hashemi, Mohsen ; Alavi, Morteza S. ; De Vreede, Leo C.N. / Pushing the Linearity Limits of a Digital Polar Transmitter. EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference. Piscataway, NJ, USA : Institute of Electrical and Electronics Engineers (IEEE), 2018. pp. 174-177

BibTeX

@inproceedings{4d037f781eb043d39f1affb91cc709d4,
title = "Pushing the Linearity Limits of a Digital Polar Transmitter",
abstract = "The maximum achievable linearity of a digital polar transmitter (DPTX) is mainly constrained by two RF-DAC associated nonidealities; namely, aliasing of sampling spectral replicas (SSR) of the AM and PM signals, and the presence of nonuniform quantization noise. In this work, using DPTX hardware linearization, in combination with PM SSR filtering and iterative learning control (ILC) algorithm improved by look-up tables (LUT), a CMOS DPTX is linearized close to its theoretical ACPR and EVM limits as predicted by its resolution. Using the ILC technique as underlying basis, an effective real-time direct-learning digital predistortion (DPD) technique is proposed. Measurement results show -60/-53 dBc ACPR and -60/-47 dB EVM using the ILC algorithm for 16/64 MHz OFDM signals, and -55/-48 dBc ACPR and -50/-44 dB EVM using the proposed DPD for 16/64 MHz OFDM signals. To the best of author's knowledge, this is the highest linearity reported for a DPTX operating with wideband signals.",
keywords = "Digital polar transmitter, DPD, quantization noise, RF - DAC, sampling spectral replica",
author = "Mohsen Hashemi and Alavi, {Morteza S.} and {De Vreede}, {Leo C.N.}",
year = "2018",
doi = "10.23919/EuMIC.2018.8539964",
language = "English",
isbn = "978-1-5386-5286-2 ",
pages = "174--177",
booktitle = "EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
address = "United States",
note = "13th European Microwave Integrated Circuits Conference, EuMIC 2018 ; Conference date: 24-09-2018 Through 25-09-2018",

}

RIS

TY - GEN

T1 - Pushing the Linearity Limits of a Digital Polar Transmitter

AU - Hashemi, Mohsen

AU - Alavi, Morteza S.

AU - De Vreede, Leo C.N.

PY - 2018

Y1 - 2018

N2 - The maximum achievable linearity of a digital polar transmitter (DPTX) is mainly constrained by two RF-DAC associated nonidealities; namely, aliasing of sampling spectral replicas (SSR) of the AM and PM signals, and the presence of nonuniform quantization noise. In this work, using DPTX hardware linearization, in combination with PM SSR filtering and iterative learning control (ILC) algorithm improved by look-up tables (LUT), a CMOS DPTX is linearized close to its theoretical ACPR and EVM limits as predicted by its resolution. Using the ILC technique as underlying basis, an effective real-time direct-learning digital predistortion (DPD) technique is proposed. Measurement results show -60/-53 dBc ACPR and -60/-47 dB EVM using the ILC algorithm for 16/64 MHz OFDM signals, and -55/-48 dBc ACPR and -50/-44 dB EVM using the proposed DPD for 16/64 MHz OFDM signals. To the best of author's knowledge, this is the highest linearity reported for a DPTX operating with wideband signals.

AB - The maximum achievable linearity of a digital polar transmitter (DPTX) is mainly constrained by two RF-DAC associated nonidealities; namely, aliasing of sampling spectral replicas (SSR) of the AM and PM signals, and the presence of nonuniform quantization noise. In this work, using DPTX hardware linearization, in combination with PM SSR filtering and iterative learning control (ILC) algorithm improved by look-up tables (LUT), a CMOS DPTX is linearized close to its theoretical ACPR and EVM limits as predicted by its resolution. Using the ILC technique as underlying basis, an effective real-time direct-learning digital predistortion (DPD) technique is proposed. Measurement results show -60/-53 dBc ACPR and -60/-47 dB EVM using the ILC algorithm for 16/64 MHz OFDM signals, and -55/-48 dBc ACPR and -50/-44 dB EVM using the proposed DPD for 16/64 MHz OFDM signals. To the best of author's knowledge, this is the highest linearity reported for a DPTX operating with wideband signals.

KW - Digital polar transmitter

KW - DPD

KW - quantization noise

KW - RF - DAC

KW - sampling spectral replica

UR - http://www.scopus.com/inward/record.url?scp=85059740921&partnerID=8YFLogxK

U2 - 10.23919/EuMIC.2018.8539964

DO - 10.23919/EuMIC.2018.8539964

M3 - Conference contribution

AN - SCOPUS:85059740921

SN - 978-1-5386-5286-2

SP - 174

EP - 177

BT - EuMIC 2018 - 2018 13th European Microwave Integrated Circuits Conference

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ, USA

T2 - 13th European Microwave Integrated Circuits Conference, EuMIC 2018

Y2 - 24 September 2018 through 25 September 2018

ER -

ID: 52186847