Ultra-wideband radio frequency electric-tuning filter network

The invention discloses an ultra-wideband radio frequency electric-tuning filter network. The network comprises a single-pole double-throw switch A (1), a single-pole double-throw switch B (8), a single-pole three-throw switch B (5), a single-pole three-throw switch C (4), a single-pole three-throw switch D (7), and a digital signal processing unit (11); the network further comprises an electric tuning filter unit A (3), an electric tuning filter unit B (6), an operational amplification unit (9), and a digital-to-analog conversion unit (10); an upper computer signal controls the digital signalprocessing unit (11) to output a switch control level signal to control six-path single-pole switch, any path in the six filter accesses is selected, the upper computer signal control the digital control processing unit (11) to output the level signal, and an analog voltage signal is output through the A/D conversion unit (10). The frequency band switching time of the ultra-wideband radio frequency electric-turning filte