6.4 A 1-to-3GHz Co-Channel Blocker Resistant, Spatially and Spectrally Passive MIMO Receiver in 65nm CMOS with +6dBm In-Band/In-Notch B1dB

Jitesh Poojary, Ramesh Harjani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

MIMO techniques exploit multipath signals from all directions. Unfortunately, this means that all the antennas can be jammed by a single co-channel blocker from any direction. Linear filtering techniques, that have an inverse, can be used to provide RF beamforming when combined with a baseband inverse without losing any of the multipath information. An example of such a filter includes the FFT/IFFT combination, shown in Fig. 6.4.1. Prior techniques have attempted to solve the MIMO co-channel blocker problem by providing nulls in individual directions [1]. These techniques provide finite jammer rejection in only one spatial direction. These have been extended to handle multiple spatial blockers [2]-[4]. However, all these techniques use active circuits for spatial filtering, which limits the ability to handle co-channel interference.

Original languageEnglish (US)
Title of host publication2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - Digest of Technical Papers
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages96-98
Number of pages3
ISBN (Electronic)9781728195490
DOIs
StatePublished - Feb 13 2021
Event2021 IEEE International Solid-State Circuits Conference, ISSCC 2021 - San Francisco, United States
Duration: Feb 13 2021Feb 22 2021

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume64
ISSN (Print)0193-6530

Conference

Conference2021 IEEE International Solid-State Circuits Conference, ISSCC 2021
CountryUnited States
CitySan Francisco
Period2/13/212/22/21

Bibliographical note

Funding Information:
This work was supported in part by the DARPA SPAR and the DARPA ALIGN programs.

Publisher Copyright:
© 2021 IEEE.

Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

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