TY - GEN
T1 - On passive intermodulation test of analog and digital systems
AU - Kozlov, Dmitry
AU - Shitvov, Alexey
AU - Schuchinsky, Alexander
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/11/16
Y1 - 2015/11/16
N2 - This paper presents initial results of evaluating suitability of the conventional two-tone CW passive intermodulation (PIM) test for characterization of modulated signal distortion by passive nonlinearities in base station antennas and RF front-end. A comprehensive analysis of analog and digitally modulated waveforms in the transmission lines with weak distributed nonlinearity has been performed using the harmonic balance analysis and X-parameters in Advanced Design System (ADS) simulator. The nonlinear distortion metrics used in the conventional two-tone CW PIM test have been compared with the respective spectral metrics applied to the modulated waveforms, such as adjacent channel power ratio (ACPR) and error vector magnitude (EVM). It is shown that the results of two-tone CW PIM tests are consistent with the metrics used for assessment of signal integrity of both analog and digitally modulated waveforms.
AB - This paper presents initial results of evaluating suitability of the conventional two-tone CW passive intermodulation (PIM) test for characterization of modulated signal distortion by passive nonlinearities in base station antennas and RF front-end. A comprehensive analysis of analog and digitally modulated waveforms in the transmission lines with weak distributed nonlinearity has been performed using the harmonic balance analysis and X-parameters in Advanced Design System (ADS) simulator. The nonlinear distortion metrics used in the conventional two-tone CW PIM test have been compared with the respective spectral metrics applied to the modulated waveforms, such as adjacent channel power ratio (ACPR) and error vector magnitude (EVM). It is shown that the results of two-tone CW PIM tests are consistent with the metrics used for assessment of signal integrity of both analog and digitally modulated waveforms.
KW - Communication nonlinearities
KW - Nonlinear distortion
KW - passive intermodulation
KW - signal integrity
UR - https://www.scopus.com/pages/publications/84963502755
U2 - 10.1109/INMMIC.2015.7330375
DO - 10.1109/INMMIC.2015.7330375
M3 - Conference proceeding
AN - SCOPUS:84963502755
T3 - International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits, INMMiC 2015
BT - International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits, INMMiC 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits, INMMiC 2015
Y2 - 1 October 2015 through 2 October 2015
ER -