A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation

Rehman Akbar, Eric A. M. Klumperink, Nuutti Tervo, M. Y. Javed, Kari Stadius, Timo Rahkonen, Aarno Pärssinen

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

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Abstract

Large-scale phased arrays need to combine weighted signals from multiple sub-arrays either in analog or in digital domain. Sub-arrays are preferably implemented modularly with integrated circuits placed next to the associated
antennas. In order to enable flexible and scalable combining networks of several mmWave sub-arrays, this paper presents a wideband receiver module that provides the cartesian combining of beamforming weights for one sub-array at IF. Furthermore, it allows interference cancellation between sub-arrays or combining multiple sub-arrays. It also provides filtering before ADCs to support current and foreseeable 5G channel bandwidths up to 800MHz. The receiver is operating at 2-4GHz IF frequency range and has more than 400MHz baseband bandwidth, a noise-figure of 5.5dB, -6dBm 1dB compression point and +3dBm in-band IIP3. In addition, over-the-air measurements are performed, showing 26dB of interference cancellation between the sub-arrays. The prototype
is implemented using 45nm CMOS PDSOI.
Original languageEnglish
Title of host publication49th European Solid-State Device Research Conference and 45th European Solid-State Circuits Conference. September 23-26, 2019 Kraków, Poland
PublisherIEEE
Pages213-216
Number of pages4
ISBN (Electronic)978-1-7281-1550-4
DOIs
Publication statusPublished - 2019
MoE publication typeA4 Article in a conference publication
EventEuropean Solid-State Device Research Conference and European Solid-State Circuits Conference - Krakow, Poland
Duration: 23 Sep 201926 Sep 2019

Conference

ConferenceEuropean Solid-State Device Research Conference and European Solid-State Circuits Conference
CountryPoland
CityKrakow
Period23/09/201926/09/2019

Keywords

  • phased array
  • beamforming
  • phase shifter
  • complex multiplication
  • inter-beam interference cancellation

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