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Phase difference measurement method and system for antenna array and phase compensation method

A technology of antenna array and measurement method, which is applied in the field of communication, can solve problems such as insufficiency, and achieve the effect of strong flexibility

Active Publication Date: 2021-03-02
PURPLE MOUNTAIN LAB
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Problems solved by technology

Among them, the MIMO antenna array probe measurement method can obtain the phase difference of different elements of the antenna array at a certain angle, so as to perform phase compensation on this specific angle; phase compensate the 2D slice, however this is not enough

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  • Phase difference measurement method and system for antenna array and phase compensation method
  • Phase difference measurement method and system for antenna array and phase compensation method
  • Phase difference measurement method and system for antenna array and phase compensation method

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Embodiment Construction

[0034] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0035] Please combine figure 1 and Figure 4 , are respectively a schematic flowchart of a phase difference measurement method for an antenna array and a schematic diagram of a phase difference measurement system for an antenna array according to an embodiment of the present application. The antenna array includes at least two array elements. Such as figure 1 As shown, the method includes step S110, measuring and obtaining a three-dimensional space far-field phase data set of each array element in the antenna array. In this step, the three-dimensional space far-field p...

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Abstract

The present application relates to a phase difference measurement method and system and a phase compensation method for an antenna array, wherein the antenna array includes at least two array elements, and the method includes measuring and obtaining a three-dimensional space far-field phase data set of each array element in the antenna array ; Determine the three-dimensional solid angle space, and obtain the three-dimensional space far-field phase data corresponding to the three-dimensional solid angle space of each array element in the antenna array from the three-dimensional space far-field phase data set of the array element; the corresponding three-dimensional space of the first array element in the antenna array The three-dimensional space far-field phase data in the solid angle space is used as a reference to obtain the phase difference of other array elements relative to the first array element. The system includes a near-field anechoic chamber, a near-field measurement device, an antenna array, an acquisition unit and a calculation unit. The phase compensation method also includes performing phase compensation on each array element in the antenna array according to the obtained phase difference. The above method and system can realize phase difference measurement and compensation of different elements of the antenna array in three-dimensional space.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a phase difference measurement method and system for antenna arrays and a phase compensation method. Background technique [0002] With the development of the fifth-generation mobile communication technology, antenna arrays based on massive antenna MIMO (multiple input multiple output) play an extremely important role. However, with the large increase in the number of elements in the antenna array, the elements at different positions in the antenna array are more and more complicated to be affected by other elements, and the phase difference between different elements will affect the performance of the wireless communication system. [0003] Therefore, it is usually necessary to measure the phase difference between different array elements in the antenna array, and then make the phases of different array elements in the antenna array consistent through a phas...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L27/00H04B7/0413
CPCH04L27/0014H04B7/0413H04L2027/0026
Inventor 徐海鹏李艳齐望东
Owner PURPLE MOUNTAIN LAB
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