Digital Beamforming Technology Based on Frequency Division Multiplexing of Intermediate Frequency

This paper introduces a frequency division multiplexing (FDM) design of intermediate frequency (IF) that can be used for digital beamforming (DBF) phased array antennas, analyzes and describes on the basic principles and control methods for phase consistency between channels are present. After adopting this design, the number of A/D and D/A in digital processing can be greatly reduced, and the overall power consumption and cost can be reduced.