Recent Developments in Integrated Interferer-Tolerant Receivers for Reconfigurable Radios

Fragmented spectrum allocations at RF and mm-Wave, increased use of carrier aggregation/MIMO and dense spectrum-reuse in wireless links has led to interest in the design of integrated wideband, high-linearity MIMO RX that provide low noise, blocker tolerance and reconfigurability across signal domai...

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Bibliographic Details
Published in:IEEE journal of microwaves 2021-07, Vol.1 (3), p.723-737
Main Authors: Jain, Sanket, Agrawal, Abhishek, Garg, Robin, Natarajan, Arun
Format: Article
Language:English
Subjects:
blocker tolerant MIMO
blocker tolerant receivers
current-mode
interference tolerant receivers
MIMO communication
Mixers
N-path filters
Noise measurement
passive mixers
Radio frequency
Receivers
Reconfigurable architectures
reconfigurable receivers
sequence mixers
Software radio
spatio spectral filtering
walsh function sequence based notch filters
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Summary:Fragmented spectrum allocations at RF and mm-Wave, increased use of carrier aggregation/MIMO and dense spectrum-reuse in wireless links has led to interest in the design of integrated wideband, high-linearity MIMO RX that provide low noise, blocker tolerance and reconfigurability across signal domains. In this paper, receive architectures for wide operating range and blocker tolerance are presented with a focus on recent developments in reconfigurable N-path receivers. Generalized sequence-mixing architectures that support reconfigurable frequency/spatial/code-domain rejection and filtering are described along with directions of research extending operation to wider bandwidths and higher frequencies.
ISSN:2692-8388
2692-8388
DOI:10.1109/JMW.2021.3070470