Bending Beam for THz Wireless Networks: Fundamental, Design Issue, and Prototype

Aoran Liu; Xin Tong Hu; Weidong Mei; Ya Fei Wu; Ke Liu; Boyu Ning; Zhi Chen; Rui Zhang

Bending Beam for THz Wireless Networks: Fundamental, Design Issue, and Prototype

Signal Processing 2026-07-07 v1

Authors: Aoran Liu , Xin Tong Hu , Weidong Mei , Ya Fei Wu , Ke Liu , Boyu Ning , Zhi Chen , Rui Zhang

Abstract

Bending beams, characterized by their non diffracting and self-healing properties in the near field, offer a new approach to bypass blockage in terahertz (THz) wireless communication and sensing. However, the investigations of bend ing beams in the context of wireless communications still remain at an early stage. This article provides a state-of-the-art review of the fundamentals and key application scenarios of bending beams in THz wireless communications and sensing. We first present and compare the existing beamforming design and practical hardware implementation methods for bending beams. Next, we discuss potential applications of bending beams in wireless communica tions and sensing and identify their associated challenges, such as blocked channel modeling, bending beam training, codebook design, etc. Finally, a hardware demonstration of bending beam over THz frequency bands is presented, validating the advantages of bending beam over conventional beamfocusing.

Cite

@article{arxiv.2607.06294,
  title  = {Bending Beam for THz Wireless Networks: Fundamental, Design Issue, and Prototype},
  author = {Aoran Liu and Xin Tong Hu and Weidong Mei and Ya Fei Wu and Ke Liu and Boyu Ning and Zhi Chen and Rui Zhang},
  journal= {arXiv preprint arXiv:2607.06294},
  year   = {2026}
}