Reconfigurable intelligent surface (RIS) can assist terahertz wireless communication to restore the fragile line-of-sight links and facilitate beam steering. Arbitrary reflection beam patterns are desired to meet diverse requirements in different applications. This paper establishes relationship between RIS beam pattern design with two-dimensional finite impulse response filter design and proposes a fast non-iterative algorithm to solve the problem. Simulations show that the proposed method outperforms baseline method. Hence, it represents a promising solution for fast and arbitrary beam pattern design in RIS-assisted terahertz wireless communication.
@article{arxiv.2205.02999,
title = {Fast and Arbitrary Beam Pattern Design for RIS-Assisted Terahertz Wireless Communication},
author = {Jian Dang and Zaichen Zhang and Yewei Li and Liang Wu and Bingcheng Zhu and Lei Wang},
journal= {arXiv preprint arXiv:2205.02999},
year = {2022}
}