基于标量衍射理论的RIS波束码本设计

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摘要：基于傅里叶光学中标量衍射理论，研究了可重构智能超表面（RIS）物理波束调控的码本设计方法，包括波束宽窄、波束指向和波束旋转；同时仿真分析了RIS单元相位比特量化精度对RIS波束方向图的影响。相关方法对实时快速生成RIS波束跟踪对应的RIS码本非常有效。

关键词：RIS；傅里叶光学；码本设计；啁啾函数；衍射；角谱

Abstract： Based on the scalar theory of diffraction in Fourier optics， the approach of the code book design for reconfigurable intelligent sur？ face （RIS） is proposed， including designing the width of the beam， and manipulating the direction as well as the rotation of the beam. The in？ fluence on the beam pattern is also studied considering the granularity of phase quantization based on simulation. The approach proposed is effective and useful in the fast code book generation for a real-time RIS beam tracking.

Keywords： RIS； Fourier optics； code book design， chirp function； diffraction； angular spectrum

智能电磁表面或可重构智能超表面（RIS）近年来在学术界和工业界得到越来越多的关注[1-10]。（剩余5562字）