用于卫星通信（SATCOM）NextG波束成形相控阵的全可重构射频矢量调制器（RFVM）宽带移相器
A Fully Reconfigurable RF Vector Modulator based Wideband Phase Shifter for NextG Beamforming Phased Array in Satellite Communications (SATCOM)
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中文总结 AI 辅助
该研究针对NextG卫星通信波束成形相控阵，提出一种全可重构RFVM宽带移相器，采用新型矢量调制方法实现宽带360度移相且保持幅度响应，无需QAF网络，覆盖S至Ku波段。
中文摘要 AI 辅助
本文提出了一种用于6G/NextG卫星通信（SATCOM）宽带波束成形相控阵的全可重构射频矢量调制器（RFVM）移相器，其覆盖从S波段到Ku波段的频率范围。具体而言，所提出的RFVM采用了一种新型矢量调制方法，该方法可放宽传统场景中的频率约束，同时避免应用四阶全通滤波（QAF）网络。其拓扑结构将射频输入信号划分为多分支横向段，每个分支可实现独立的增益加权和相位延迟；通过对所有分支的信号进行合成，所提RFVM的输出信号可实现360度全相位移相，同时在宽带场景中保持幅度响应。
英文摘要
This paper presents a fully reconfigurable RF vector modulator (RFVM)-based phase shifter for wideband beamforming phased array of 6G/NextG satellite communication (SATCOM). It covers the frequency range from S-band up to Ku-band. Specifically, the proposed RFVM features a novel vector modulation approach that relaxes the frequency constraint in conventional scenario while avoiding applying a quarter all-pass filtering (QAF) network. It achieves a topology that RF input signal is divided into multi-branch transversal sections where each branch enables individual gain weightings and phase delays. By resumming the signals from all branches, the output signal of proposed RFVM can realize a full 360 degree phase shifting while it preserves magnitude response in wideband scenario.
