Titlebook: Circular Array-Based Radio Frequency OAM Communications; Rui Chen,Wen-Xuan Long,Nan Cheng Book 2024 The Editor(s) (if applicable) and The

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https://doi.org/10.1007/978-3-031-37589-7Orbital angular momentum; radio vortex; multi-mode multiplexing; joint spatial division and coaxial mul

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Overview of OAM Technology in Communications,new capacity in the severely congested spectrum of commercial communication systems. Beams carrying OAM have a helical phase front and a field strength with a singularity along the axial center, which can be used for information transmission, imaging, and particle manipulation. The number of orthogo

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Circular Array-Based Radio Frequency Point-to-Point OAM Communications,el to achieve high-spectrum efficiencies. However, there are still big challenges in the multi-mode OAM generation, OAM antenna alignment, and OAM signal reception. To solve these problems, we propose an overall scheme of the line-of-sight multi-carrier and multi-mode OAM (LoS MCMM-OAM) communicatio

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Hybrid Mechanical and Electronic Beam Steering for Point-to-Point OAM Communications,mance degradation induced by small antenna misalignment in practical environment. However, in the case of large-angle misalignment, the OAM channel capacity cannot be effectively compensated only by the electronic beam steering. To solve this problem, we propose a hybrid mechanical and electronic be

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