MIcable SA-07-4B180400 is a 18-40GHz 4x4 butler matrix which can transfer the signal reciprocally from any of 4 ports to any of other 4 ports. It covers 5G NR (FR2) frequency band and has high versatility for 5G NR test applications. Because the high performance passive components and cables are used inside, the system has super phase accuracy, amplitude balance, stability and repeatability.