Download the MIMO Testing
Application Note

This 6-page application note provides guidelines and notes for MIMO testing using Butler Matrices for beamforming networks.

A Butler Matrix can transfer a signal reciprocally from any of its n-input ports to any of of its n-output ports, with high phase accuracy, amplitude balance, low insertion loss, and high port-to-port isolation.

Using a Butler matrix in a RF MIMO test environment ensures the signal is optimally conditioned for highest throughput. With high port count a user can test up to 16×16 channel MIMO or multiple lower order devices concurrently. When combined with programmable attenuators and phase shifters it can produce channel conditions equivalent to real world and worst case conditions.