The 8401 from Weinschel by Spectrum Control is a 4x4 Butler Matrix that operates from 2.4 to 6.0 GHz. It can handle an input power of 5 W (~37 dBm), has an insertion loss of 8 dB, and provides port-to-port isolation of 18 dB. This butler matrix is designed to transfer the signal reciprocally from any of the four input ports to any of the four output ports with a phase accuracy of ±10°. It is available in a module that measures 93.98 x 46.99 x 15.24 mm with SMA-female connectors. The 8401 is ideal for Wi-Fi, WiMAX, 4G/5G testing, antenna array beamforming, interferometer system simulation and testing, multipath simulation and performance evaluation, and MIMO testing applications.