Design of Beam Forming Network For Satellite-Borne Phased Array

In this paper, we designed a forward beamforming network for spaceborne phased array, which has the ability of power division and amplification, phase shifting, power adjustment and synthesis of RF signal. Under the control of the wave control unit, the real-time direction adjustment of two beam signals can be realized. The phase-shifting network is controlled by RS422 signal, and the channel phase-shifting accuracy is better than 4.2°, After five digit phase shift compensation, the phase consistency between channels is better than 13°.