A 128-beam fully digital phased array architecture based on subarray partitioning

CN122394601APending Publication Date: 2026-07-14JINGPENGXINHAI MICROELECTRONICS TECHNOLOGY (SHANGHAI) CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: JINGPENGXINHAI MICROELECTRONICS TECHNOLOGY (SHANGHAI) CO LTD
Filing Date: 2026-04-20
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

Traditional all-digital phased array antennas have excessively high hardware complexity and power consumption when forming large-scale multi-beam arrays, and existing subarray partitioning schemes cannot meet the flexibility and performance requirements of 128 beams.

Method used

The fully digital phased array architecture based on subarray partitioning is adopted. By dividing the large-scale antenna array into multiple subarrays, combining M subarray-level digital processing units and a global beamforming unit, a two-level weighted coefficient generation strategy is adopted to form 128 independent beams, reducing the number of digital channels and maintaining flexibility.

Benefits of technology

It achieves stable formation of 128 independent beams, reduces system complexity and power consumption, adapts to the application requirements of low-Earth orbit satellite communication, and has excellent inter-beam isolation.

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Abstract

The application belongs to the technical field of phased array antennas and satellite communication, and particularly relates to a 128-beam full-digital phased array architecture based on subarray division. The architecture is composed of a large-scale antenna array, a subarray division network, a subarray-level digital processing unit, a global beam synthesis unit and a beam control unit. The large-scale antenna array is divided into a plurality of subarrays through the subarray division network, the subarray-level digital processing unit performs digital beam forming on the signals of each subarray to obtain subarray-level beams, the global beam synthesis unit performs secondary digital synthesis on all the subarray-level beams, and finally 128 independent beams are formed. The beam control unit provides weighting coefficients for the two-stage beam synthesis. The architecture has low complexity and high flexibility, greatly reduces the number of digital channels, realizes 128-beam large-scale multi-beam forming, and adapts to the application requirements of low-orbit satellite communication payloads.

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