An adaptive UCA array method for generating multi-mode whirling electromagnetic waves

By using an adaptive UCA array method, the number and radius of concentric rings are determined, adjacent rings are set at equal intervals, and the positions of array elements are determined by dividing the rings equally. This solves the problem of low generation quality of multimode vortex electromagnetic waves, realizes the generation of high-quality OAM beams and multimode multiplexing, and improves the spectral efficiency of the communication system.

CN116094648BActive Publication Date: 2026-03-03SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202211741078.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-30
Publication Date
2026-03-03
Estimated Expiration
2042-12-30

AI Technical Summary

Technical Problem

In existing technologies, the quality of multimode vortex electromagnetic wave generation is not high, and UCA design lacks regularity and scalability.

Method used

An adaptive UCA array method is adopted. By determining the number and radius of concentric rings, adjacent rings are set at equal intervals. The positions of array elements are determined by dividing the rings equally. Multi-ring UCA expansion is performed to ensure that the spacing between array elements is equal, reduce mutual coupling, and generate high-quality OAM beams.

Benefits of technology

It achieves high-quality multimode vortex electromagnetic wave generation, improves the number of OAM multiplexing and the spectral efficiency of the communication system, and has regularity, repeatability and scalability.

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Abstract

The application provides a self-adaptive UCA array arrangement method for generating a multi-mode vortex electromagnetic wave, which comprises the following steps: determining the number of concentric rings; determining the radius of a first concentric ring with the smallest radius; arranging every two adjacent concentric rings at equal intervals, and the interval is equal to the radius of the first concentric ring; dividing all the concentric rings into N equal parts according to the number N of array elements of the first concentric ring, and taking the N division points of the first concentric ring as the positions of the array elements of the first concentric ring; for each N division part of all the concentric rings, respectively placing array elements according to the positions of the array elements of the first concentric ring; taking all the concentric rings except the first concentric ring as the kth concentric ring, and dividing the N division part of the kth concentric ring into k equal parts, and taking the boundary points of the N division part and the k division points as the positions of the array elements of the kth concentric ring to place the array elements. The method can generate a high-quality OAM beam and has strong universality.
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