Switch filter array box system

The invention provides a switch filter array case system, used for calibration of a spectrum analyzer and a vector signal analyzer. The switch filter array case system, comprises a transformer used for converting AC into DC and providing control voltage and eight switches, two 8-to-1 RF switches and a plurality of RF lines and the like. According to the inventive switch filter array case system, a single discrete filter is integrated together, after connecting an input port and an output port of the switch filter array case system, the required filter is selected through the switch, thereby realizing filtering, accordingly once connecting, multiple usage, testing time and manpower are greatly saved. The invention can be conveniently applied to a spectrum analyzer automatic calibration system and the automatic calibration requiring the filters.