Detail publikačního výsledku

Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments

POSPÍŠIL, M.; MARŠÁLEK, R.; GÖTTHANS, T.; URBANEC, T.

Original Title

Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments

English Title

Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments

Type

WoS Article

Original Abstract

Millimeter waves will play an important role in communication systems in the near future. On the one hand, the bandwidths available at millimeter-wave frequencies allow for elevated data rates, but on the other hand, the wide bandwidth accentuates the effects of wireless front-end impairments on transmitted waveforms and makes their compensation more difficult. Research into front-end impairment compensation in millimeter-wave frequency bands is currently being carried out, mainly using expensive laboratory setups consisting of universal signal generators, spectral analyzers and high-speed oscilloscopes. This paper presents a detailed description of an in-house built MATLAB-controlled 60 GHz measurement test-bed developed using relatively inexpensive hardware components that are available on the market and equipped with digital compensation for the most critical front-end impairments, including the digital predistortion of the power amplifier. It also demonstrates the potential of digital predistortion linearization on two distinct 60 GHz power amplifiers: one integrated in a direct-conversion transceiver and an external one with 24 dBm output power.

English abstract

Millimeter waves will play an important role in communication systems in the near future. On the one hand, the bandwidths available at millimeter-wave frequencies allow for elevated data rates, but on the other hand, the wide bandwidth accentuates the effects of wireless front-end impairments on transmitted waveforms and makes their compensation more difficult. Research into front-end impairment compensation in millimeter-wave frequency bands is currently being carried out, mainly using expensive laboratory setups consisting of universal signal generators, spectral analyzers and high-speed oscilloscopes. This paper presents a detailed description of an in-house built MATLAB-controlled 60 GHz measurement test-bed developed using relatively inexpensive hardware components that are available on the market and equipped with digital compensation for the most critical front-end impairments, including the digital predistortion of the power amplifier. It also demonstrates the potential of digital predistortion linearization on two distinct 60 GHz power amplifiers: one integrated in a direct-conversion transceiver and an external one with 24 dBm output power.

Keywords

millimeter-wave systems; I/Q mismatch compensation; digital predistortion; RF impairments

Key words in English

millimeter-wave systems; I/Q mismatch compensation; digital predistortion; RF impairments

Authors

POSPÍŠIL, M.; MARŠÁLEK, R.; GÖTTHANS, T.; URBANEC, T.

RIV year

2021

Released

20.02.2021

Publisher

MDPI

ISBN

1424-8220

Periodical

SENSORS

Volume

21

Number

4

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://www.mdpi.com/1424-8220/21/4/1473/htm

Full text in the Digital Library

http://hdl.handle.net/11012/196367

BibTex

@article{BUT170116,
  author="Martin {Pospíšil} and Roman {Maršálek} and Tomáš {Götthans} and Tomáš {Urbanec}",
  title="Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments",
  journal="SENSORS",
  year="2021",
  volume="21",
  number="4",
  pages="1--18",
  doi="10.3390/s21041473",
  issn="1424-8220",
  url="https://www.mdpi.com/1424-8220/21/4/1473/htm"
}

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