基于標量衍射理論的RIS波束碼本設計

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摘要：基于傅里葉光學中標量衍射理論，研究了可重構智能超表面（RIS）物理波束調控的碼本設計方法，包括波束寬窄、波束指向和波束旋轉；同時仿真分析了RIS單元相位比特量化精度對RIS波束方向圖的影響。相關方法對實時快速生成RIS波束跟蹤對應的RIS碼本非常有效。

關鍵詞：RIS；傅里葉光學；碼本設計；啁啾函數(shù)；衍射；角譜

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

智能電磁表面或可重構智能超表面（RIS）近年來在學術界和工業(yè)界得到越來越多的關注[1-10]。（剩余5562字）