Recommended Practices for Calibrated Millimeter-Wave Modulated-Signal Measurements

Description

In this paper, we have demonstrated the importance of choosing the correct reference plane for applications such as over-the-air (OTA) modulated-signal measurements at millimeter-wave frequencies. We have employed a modulated-signal source at 44 GHz for this demonstration. The measurements have been performed using NIST's calibrated sampling oscilloscope and are traceable to the primary standards. The EVM values and distributions are obtained after complete uncertainty analyses. The source and oscilloscope mismatch measurements have been performed on a vector network analyzer (VNA) and are also shown here after complete uncertainty analyses. Each dataset shown in the paper has been obtained after running 1000 Monte-Carlo simulations.

Resources

Name Format Description Link
47 It provides a description of the uploaded datasets. https://data.nist.gov/od/ds/mds2-2796/2796_README.txt
47 Source mismatch at the measurement reference plane https://data.nist.gov/od/ds/mds2-2796/Figure2a_sourceMM_measurementRP.txt
47 Source mismatch at the source reference plane https://data.nist.gov/od/ds/mds2-2796/Figure2a_sourceMM_sourceRP.txt
53 Monte-Carlo EVM values for plotting with EVM distribution https://data.nist.gov/od/ds/mds2-2796/Figure2b_EVM_values.xlsx
47 EVM distribution at the measurement reference plane https://data.nist.gov/od/ds/mds2-2796/Figure2b_histogram_measurementRP.txt
47 EVM distribution at the source reference plane https://data.nist.gov/od/ds/mds2-2796/Figure2b_histogram_sourceRP.txt
53 Monte-Carlo EVM values for plotting with the EVM distribution https://data.nist.gov/od/ds/mds2-2796/Figure3_EVM_values.xlsx
47 EVM distribution https://data.nist.gov/od/ds/mds2-2796/Figure3_histogram.txt
47 50-GHz module oscilloscope mismatch https://data.nist.gov/od/ds/mds2-2796/Figure4a_50GHz_module.txt
47 67-GHz module oscilloscope mismatch https://data.nist.gov/od/ds/mds2-2796/Figure4a_67GHz_module.txt
53 Monte-Carlo means and 95% confidence limits plotted for 0dB, 10dB, 20dB channel attenuations when no fixed attenuator was inserted and when 3dB and 6dB fixed attenuators were inserted before the oscilloscope adapters https://data.nist.gov/od/ds/mds2-2796/Figure4c_EVM_values.xlsx

Tags

  • predistortion
  • digitally-modulated-signals
  • reference-planes
  • uncertainty-analysis
  • error-vector-magnitude

Topics

Categories