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Search Publications by: Joshua Kast (Fed)

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Displaying 1 - 4 of 4

Dynamic Range by Design in OTA EVM measurements

October 17, 2023
Author(s)
Paritosh Manurkar, Dan Kuester, Joshua Kast, Rob Horansky
We present an experimental approach to design an over-the-air (OTA) millimeter-wave measurement of error vector magnitude (EVM) and associated uncertainties that include correlations and nonlinearities. Our approach uses a waveguide-variable attenuator at

Recommended Practices for Calibrated Millimeter-Wave Modulated-Signal Measurements

June 14, 2023
Author(s)
Paritosh Manurkar, Joshua Kast, Dylan Williams, Rob Horansky, Dan Kuester, Kate Remley
In a millimeter-wave modulated-signal measurement system with several calibration reference planes, we want the measured signal to be a close replica of the ideal signal at the reference plane which connects the near-ideal measured signal to subsequent

On-Wafer Vector-Network-Analyzer Measurements at mK Temperatures

January 11, 2023
Author(s)
Elyse McEntee Wei, Richard Chamberlin, Nate Kilmer, Joshua Kast, Jake A. Connors, Dylan Williams
We describe a system for performing on-wafer vector-network-analyzer measurements from 100 MHz to 15 GHz at mK temperatures (i.e., less than 20 mK). We first demonstrate a camera-less probe positioning system and calibrate this system at 4.4 K. We then use

Reference Measurements of Error Vector Magnitude

August 29, 2022
Author(s)
Paritosh Manurkar, Christopher Silva, Joshua Kast, Rob Horansky, Dylan Williams, Kate Remley
We demonstrate the suitability of the IEEE P1765 Reference Waveforms in ascertaining EVM and the associated uncertainties by performing traceable measurements on a calibrated equivalent-time sampling oscilloscope at 44 GHz. With this knowledge, a user can