A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection

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Abstract

Abstract—A highly reconfigurable multi-beam MIMO receiver with 4 RF inputs and 4 outputs is proposed, allowing for digital MIMO but also analog interference rejection by spatial notch filtering through 4 reconfigurable orthogonal beams. A segmented constant-Gm vector modulator with improved interference tolerance and RF frequency range is proposed, allowing current-domain beamforming before I-V conversion by a transimpedance amplifier. A 1-4 GHz 22 nm FD-SOI prototype chip achieves >29 spatial notch suppression for in-band interference signals. In the notches, an IIP3 of +17 dBm and in-band B1dB of -12 dBm is achieved at 44.5 dB gain. Sub-3dB system noise figure is achievable in the corner points of vector modulator constellation. On the circle points, noise figure degrades about 2.5 dB. However, in-band, in-notch B1dB and IIP3 improve by 32dB and 43dB, respectively. The chip of 0.52 mm2 active area consumes 75-115mW at an LO-frequency of 1-4 GHz from a 0.8V supply.
Original languageEnglish
Title of host publicationIEEE Radio Frequency Integrated Circuits Symposium 2019 (RFIC)
Place of PublicationBoston, Massachusetts, US
PublisherIEEE
Pages339-342
Number of pages4
ISBN (Electronic)978-1-7281-1702-7
DOIs
Publication statusPublished - 4 Jun 2019
EventIEEE Radio Frequency Integrated Circuits Symposium 2019 - Boston Convention and Exhibition Center, Boston, United States
Duration: 2 Jun 20194 Jun 2019

Conference

ConferenceIEEE Radio Frequency Integrated Circuits Symposium 2019
Abbreviated titleRFIC 2019
CountryUnited States
CityBoston
Period2/06/194/06/19

Fingerprint

MIMO systems
Modulators
Signal interference
Beamforming

Keywords

  • spatial filtering
  • analog beamforming
  • multiple-input–multiple-output (MIMO)
  • receiver
  • vector modulator
  • interference rejection

Cite this

Golabighezelahmad, Seyedsajad ; Klumperink, Eric A.M. ; Nauta, Bram . / A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection. IEEE Radio Frequency Integrated Circuits Symposium 2019 (RFIC). Boston, Massachusetts, US : IEEE, 2019. pp. 339-342
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title = "A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection",
abstract = "Abstract—A highly reconfigurable multi-beam MIMO receiver with 4 RF inputs and 4 outputs is proposed, allowing for digital MIMO but also analog interference rejection by spatial notch filtering through 4 reconfigurable orthogonal beams. A segmented constant-Gm vector modulator with improved interference tolerance and RF frequency range is proposed, allowing current-domain beamforming before I-V conversion by a transimpedance amplifier. A 1-4 GHz 22 nm FD-SOI prototype chip achieves >29 spatial notch suppression for in-band interference signals. In the notches, an IIP3 of +17 dBm and in-band B1dB of -12 dBm is achieved at 44.5 dB gain. Sub-3dB system noise figure is achievable in the corner points of vector modulator constellation. On the circle points, noise figure degrades about 2.5 dB. However, in-band, in-notch B1dB and IIP3 improve by 32dB and 43dB, respectively. The chip of 0.52 mm2 active area consumes 75-115mW at an LO-frequency of 1-4 GHz from a 0.8V supply.",
keywords = "spatial filtering, analog beamforming, multiple-input–multiple-output (MIMO), receiver, vector modulator, interference rejection",
author = "Seyedsajad Golabighezelahmad and Klumperink, {Eric A.M.} and Bram Nauta",
year = "2019",
month = "6",
day = "4",
doi = "10.1109/RFIC.2019.8701787",
language = "English",
pages = "339--342",
booktitle = "IEEE Radio Frequency Integrated Circuits Symposium 2019 (RFIC)",
publisher = "IEEE",
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}

Golabighezelahmad, S, Klumperink, EAM & Nauta, B 2019, A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection. in IEEE Radio Frequency Integrated Circuits Symposium 2019 (RFIC). IEEE, Boston, Massachusetts, US, pp. 339-342, IEEE Radio Frequency Integrated Circuits Symposium 2019, Boston, United States, 2/06/19. https://doi.org/10.1109/RFIC.2019.8701787

A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection. / Golabighezelahmad, Seyedsajad ; Klumperink, Eric A.M.; Nauta, Bram .

IEEE Radio Frequency Integrated Circuits Symposium 2019 (RFIC). Boston, Massachusetts, US : IEEE, 2019. p. 339-342.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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T1 - A 1-4 GHz 4x4 MIMO receiver with 4 reconfigurable orthogonal beams for analog interference rejection

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N2 - Abstract—A highly reconfigurable multi-beam MIMO receiver with 4 RF inputs and 4 outputs is proposed, allowing for digital MIMO but also analog interference rejection by spatial notch filtering through 4 reconfigurable orthogonal beams. A segmented constant-Gm vector modulator with improved interference tolerance and RF frequency range is proposed, allowing current-domain beamforming before I-V conversion by a transimpedance amplifier. A 1-4 GHz 22 nm FD-SOI prototype chip achieves >29 spatial notch suppression for in-band interference signals. In the notches, an IIP3 of +17 dBm and in-band B1dB of -12 dBm is achieved at 44.5 dB gain. Sub-3dB system noise figure is achievable in the corner points of vector modulator constellation. On the circle points, noise figure degrades about 2.5 dB. However, in-band, in-notch B1dB and IIP3 improve by 32dB and 43dB, respectively. The chip of 0.52 mm2 active area consumes 75-115mW at an LO-frequency of 1-4 GHz from a 0.8V supply.

AB - Abstract—A highly reconfigurable multi-beam MIMO receiver with 4 RF inputs and 4 outputs is proposed, allowing for digital MIMO but also analog interference rejection by spatial notch filtering through 4 reconfigurable orthogonal beams. A segmented constant-Gm vector modulator with improved interference tolerance and RF frequency range is proposed, allowing current-domain beamforming before I-V conversion by a transimpedance amplifier. A 1-4 GHz 22 nm FD-SOI prototype chip achieves >29 spatial notch suppression for in-band interference signals. In the notches, an IIP3 of +17 dBm and in-band B1dB of -12 dBm is achieved at 44.5 dB gain. Sub-3dB system noise figure is achievable in the corner points of vector modulator constellation. On the circle points, noise figure degrades about 2.5 dB. However, in-band, in-notch B1dB and IIP3 improve by 32dB and 43dB, respectively. The chip of 0.52 mm2 active area consumes 75-115mW at an LO-frequency of 1-4 GHz from a 0.8V supply.

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