Theoretical Comparison of Direct-Sampling Versus Heterodyne RF Receivers

An intuitive high-level argument is presented suggesting that direct-sampling radio frequency (RF) receivers using Nyquist analog-digital converters can be as power-efficient as analog heterodyne receivers for equal dynamic range specifications, at least at lower RF frequencies well below the f t of...

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Published in:IEEE transactions on circuits and systems. I, Regular papers Regular papers, 2016-08, Vol.63 (8), p.1276-1282
Main Author: Gomez, Ramon
Format: Article
Language:English
Subjects:
Analog–digital converters
Baseband
Capacitors
Channels
Circuits
direct-sampling receivers
Dynamic range
Dynamical systems
Mixers
Power dissipation
Radio frequencies
Radio frequency
radio receivers
Receivers
software radio
Specifications
Systems planning
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cited_by cdi_FETCH-LOGICAL-c392t-61f785504fa99dbb36398b6e59af187dad091ee893624165b145ceec502a16273
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description An intuitive high-level argument is presented suggesting that direct-sampling radio frequency (RF) receivers using Nyquist analog-digital converters can be as power-efficient as analog heterodyne receivers for equal dynamic range specifications, at least at lower RF frequencies well below the f t of the IC process. System planning for direct-sampling receivers is reviewed, highlighting dBFS/Hz as an intrinsic measure of dynamic range, independent of channel and Nyquist bandwidths. Power dissipation versus dynamic range for recently reported heterodyne and direct-sampling receivers is examined.
doi_str_mv 10.1109/TCSI.2016.2564680
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subjects Analog–digital converters
Baseband
Capacitors
Channels
Circuits
direct-sampling receivers
Dynamic range
Dynamical systems
Mixers
Power dissipation
Radio frequencies
Radio frequency
radio receivers
Receivers
software radio
Specifications
Systems planning
title Theoretical Comparison of Direct-Sampling Versus Heterodyne RF Receivers
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