Abstract:
A spectrum channelizer employing a frequency-folded analog-to-digital converter (FF-ADC) architecture with the ability to control the amplitude of LO harmonics using puls...Show MoreMetadata
Abstract:
A spectrum channelizer employing a frequency-folded analog-to-digital converter (FF-ADC) architecture with the ability to control the amplitude of LO harmonics using pulse-width-modulated LOs (PWM-LOs), that uses voltage-mode downconversion is described in this work. The approach requires a single voltage-mode input amplifier to drive the downconversion switches. Frequency-folding and sub-band gain control are achieved in a single signal path. This is in contrast to prior work that used a current-mode approach, and required a main FF-ADC path and a separate auxiliary path for sub-band gain control. By avoiding the requirement for an auxiliary input path, the approach presented here is shown to significantly simplify the signal chain, with identical gain-scaling capability.
Date of Conference: 19-20 April 2022
Date Added to IEEE Xplore: 30 August 2022
ISBN Information:
The University of Texas at Austin, Austin, TX, USA
The University of Texas at Austin, Austin, TX, USA
Independent Researcher, TX, USA
Contents The University of Texas at Austin, Austin, TX, USA
The University of Texas at Austin, Austin, TX, USA
Independent Researcher, TX, USA
