The digital antenna array designed in this paper realized direct generation and sampling of five-octave RF signals based on high speed sampling and multi-channel synchronization. This system uses standard protocol to realize realtime control of array element level parameters, including transmitting power, receiving gain, frequency, waveform and so on. The main features of this array include: supporting direct generation and sampling of RF signals, 64 channels synchronization accuracy less than 20 ps, supporting the parameterized definition of a variety of waveforms, and supporting the parameterized formation of a variety of polarization modes.