A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation
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A4 Artikkeli konferenssijulkaisussa
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Date
2019
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Language
en
Pages
4
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49th European Solid-State Device Research Conference and 45th European Solid-State Circuits Conference. September 23-26, 2019 Kraków, Poland, pp. 213-216
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.Description
Keywords
phased array, beamforming, phase shifter, complex multiplication, inter-beam interference cancellation
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Citation
Akbar, R, Klumperink, E A M, Tervo, N, Javed, M Y, Stadius, K, Rahkonen, T & Pärssinen, A 2019, A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation . in 49th European Solid-State Device Research Conference and 45th European Solid-State Circuits Conference. September 23-26, 2019 Kraków, Poland . IEEE, pp. 213-216, European Solid-State Device Research Conference and European Solid-State Circuits Conference, Krakow, Poland, 23/09/2019 . https://doi.org/10.1109/ESSCIRC.2019.8902869