Testing multi-antenna systems such as phased array or beamforming antennas requires a test system capable of providing multiple signals with constant phase relationships between them. The coherent ...

Today, many wireless communications systems incorporate multiple input, multiple output (MIMO) antenna schemes to take advantage of the multipath signal propagation. In addition, many of today’s ...

This application note explains how to generate phase coherent signals, what to consider and how to best calibrate the relative phases and timing between the individual channels. Rohde & Schwarz signal ...