Abstract

The rapid deployment of satellite constellations has driven the rapid development of the satellite industry. Low-cost solutions for the entire industry chain will greatly accelerate the improvement of satellite Internet. On the user side, flexible phased array antennas have replaced reflector antennas, but the resulting cost issues will become increasingly prominent. Based on this, a low-cost phased array architecture based on two-stage phase shifters is proposed. On the basis of subarray division, high-precision and low-precision phase shifters are organically combined to reduce costs by reducing the number of high-precision phase shifters. The structure is simple and easy to implement, and simulation results show that the phased array of this structure has reliable performance in scanning accuracy and beam sidelobes.