How to Conduct MIMO and Beamforming Testing

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MXG Signal Generator
+ MXG Signal Generator
MXG Signal Generator
+ MXG Signal Generator

Creating Phase Coherent, Time-Aligned Signals with a Signal Generator

MIMO (multiple-input, multiple-output) and beamforming are advanced wireless techniques that require precise time alignment and phase stability across multiple channels. Traditional multi-signal-generator setups can produce synchronized signals but often suffer from phase drift and complex synchronization requirements, leading to inconsistent results. External synchronization methods are available, yet their implementation complexity leads to measurement inaccuracies.

The optimal solution integrates a multi-channel signal generator with built-in phase-coherent outputs across all channels. This architecture enables in superior performance with lower EVM and exceptional frequency-response flatness, providing high-precision references essential for validating next-generation communication receivers.

MIMO and Beamforming Testing Solution

Conducting spatial multiplexing MIMO or beamforming testing requires the ability to generate phase-coherent signals. Providing up to four synchronized channels, the Keysight MXG signal generator generates phase-coherent signals resulting in low EVM and flat frequency responses required for advanced wireless testing.

The integrated solution eliminates the need for multiple single-port units to share a clock and undergo meticulous calibration to achieve phase coherence. Plus, the MXG’s direct digital synthesis architecture ensures minimal signal distortion, making it an ideal high-precision reference for testing modern communication receivers.

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See Demo of a Beamforming and MIMO Test

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