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Antenna selection method for transmitting multimode multiplexing signals through uniform area array

A multi-mode multiplexing and antenna selection technology, applied in diversity/multi-antenna systems, space transmit diversity, sustainable communication technology, etc., can solve the problems of unable to transmit OAM vortex electromagnetic waves, unable to realize flexible beam adjustment, etc., to achieve flexible The effect of tweaking and speeding up development

Active Publication Date: 2021-11-09
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is impossible to transmit OAM vortex electromagnetic waves on the above-mentioned uniform array using the existing technology, let alone realize the flexible adjustment of the beam

Method used

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  • Antenna selection method for transmitting multimode multiplexing signals through uniform area array
  • Antenna selection method for transmitting multimode multiplexing signals through uniform area array
  • Antenna selection method for transmitting multimode multiplexing signals through uniform area array

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Embodiment Construction

[0055] Below in conjunction with the drawings, preferred embodiments of the present invention are given and described in detail.

[0056] Such as image 3 As shown, the antenna selection method for transmitting multi-mode multiplexing signals through a uniform array provided by the present invention comprises the following steps:

[0057] Step S1, select a rectangular grid array, hexagonal grid array or triangular grid array as the basic area array, and the set of all array elements in the basic area array is P={p 1 ,p 2 …p N}, p j =(x j ,y j ) represents any element in the basic surface array, x j Represents the row number of the array element, y j Represents the column number of the array element, j indicates the serial number of the array element in the basic surface array, j∈{1, 2, 3...N}, N is the number of array elements. For the convenience of description, this embodiment uses a triangular grid array as an example to describe the method of the present invention ...

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Abstract

The invention relates to an antenna selection method for transmitting a multimode multiplexing signal through a uniform area array. The method comprises the following steps: selecting a basic area array; determining a central array element and the maximum radius of the generated UCA; calculating the distance from any array element in the basic area array to the central array element, and determining a radius sequence of the UCA capable of being generated by the basic area array by combining the maximum radius of the UCA capable of being generated; determining array element set sequences corresponding to different UCA radiuses; giving the maximum divergence angle of the OAM vortex electromagnetic beam, and calculating the transmittable OAM mode of the basic area array and the minimum UCA radius required by the transmittable OAM mode; and extracting an array element set required by a transmittable OAM mode from the array element set sequence corresponding to different UCA radiuses, and calculating an excitation phase required by each array element. According to the invention, UCAs with different radiuses can be generated on a uniform area array, so that flexible adjustment of wave beams can be realized in application. The development cost can be reduced, and the project development speed can be increased.

Description

technical field [0001] The present invention relates to a wireless communication system, more specifically to an antenna selection method for transmitting multi-mode multiplexing signals through a uniform array, and is applicable to multi-mode multiplexing communication systems based on orbital angular momentum (OAM) on microwave and millimeter wave bands . Background technique [0002] Multiplexing refers to the process and technology of transmitting multiple signals or data streams on one channel. Currently, commonly used multiplexing technologies include frequency division multiplexing, time division multiplexing, and space division multiplexing. The multi-mode multiplexing technology refers to the multiplexing of multiple signals by using the orthogonality of the electromagnetic wave transmission mode. Specifically, the electromagnetic waves radiated by the antenna have wave-particle duality, and can carry OAM like moving particles. Thus each photon can carry ( Rep...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/06
CPCH04B7/0408H04B7/0697Y02D30/70
Inventor 刘程翔周斌琚诚赵宇
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI