Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments
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 tra...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-02-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/4/1473 |
| _version_ | 1797395818400972800 |
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| author | Martin Pospíšil Roman Maršálek Tomáš Götthans Tomáš Urbanec |
| author_facet | Martin Pospíšil Roman Maršálek Tomáš Götthans Tomáš Urbanec |
| author_sort | Martin Pospíšil |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-09T00:41:13Z |
| format | Article |
| id | doaj.art-048dd5a0cfa1454788ecdfb9fc56ff0f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T00:41:13Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-048dd5a0cfa1454788ecdfb9fc56ff0f2023-12-11T17:46:33ZengMDPI AGSensors1424-82202021-02-01214147310.3390/s21041473Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion ExperimentsMartin Pospíšil0Roman Maršálek1Tomáš Götthans2Tomáš Urbanec3Department of Radio Electronics, Brno University of Technology, 61600 Brno, Czech RepublicDepartment of Radio Electronics, Brno University of Technology, 61600 Brno, Czech RepublicDepartment of Radio Electronics, Brno University of Technology, 61600 Brno, Czech RepublicDepartment of Radio Electronics, Brno University of Technology, 61600 Brno, Czech RepublicMillimeter 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.https://www.mdpi.com/1424-8220/21/4/1473millimeter-wave systemsI/Q mismatch compensationdigital predistortionRF impairments |
| spellingShingle | Martin Pospíšil Roman Maršálek Tomáš Götthans Tomáš Urbanec Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments Sensors millimeter-wave systems I/Q mismatch compensation digital predistortion RF impairments |
| title | Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments |
| title_full | Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments |
| title_fullStr | Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments |
| title_full_unstemmed | Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments |
| title_short | Digitally-Compensated Wideband 60 GHz Test-Bed for Power Amplifier Predistortion Experiments |
| title_sort | digitally compensated wideband 60 ghz test bed for power amplifier predistortion experiments |
| topic | millimeter-wave systems I/Q mismatch compensation digital predistortion RF impairments |
| url | https://www.mdpi.com/1424-8220/21/4/1473 |
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