R&S®FSQ Signal Analyzer

Spectrum and signal analysis in a single unit

Application Notes

1MA110: Experimental Study of 3G Signal Interaction in Nonlinear Downlink RAN Transmitters

Abstract
While RF communication signal distortions in nonlinear transmission paths have been predicted theoretically and studied experimentally for various signals, it is interesting to examine a wideband nonlinear system reaction to a wideband 3G signal and a narrowband 2G signal. Research and testing have demonstrated that, while most vital signal parameters remain within the limits specified by applicable standards even if composite signal power approaches specified maximum power, a relatively high level of spurious emissions caused by cross- and intermodulation can result. To avoid degrading both existing and new systems, this and other signal quality issues must be considered when designing and deploying multitechnology systems.
Keywords
Bechtel, UMTS, DAS, Distributed, Distributed Antenna, Cross-Modulation, Intermodulation, Jamming, FSQ, SMU
Last Modified
09.10.2006
File NameVersionLast ModifiedFile Size
1MA110_1E.pdf

Application Note - English version
  08.11.2006   976 KBytes