Compact range air interface test equipment

A test equipment and technology of constriction field, applied in the field of air interface test equipment of constriction field, can solve the problems of large turning radius, inconvenient testing, complicated turntable design, etc. Effect

Pending Publication Date: 2021-12-28
NANJING JIEXI TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to measure the 3D radiation pattern, most of these two fields will use a U-shaped turntable. For large-scale equipment, the design of the turntable is complicated and the radius of rotation is large, so the test is very inconvenient.

Method used

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  • Compact range air interface test equipment

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0034] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time, and the "connection" may be an electrical connection or a communication connection.

[0035] Unless otherwise defined, all technical ...

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Abstract

The invention discloses compact range air interface testing equipment, which comprises a measuring antenna, an object placing table and a rotatable connecting rod; and the measuring antenna, the object placing table and the rotatable connecting rod are all located in a darkroom; the object placing table is used for placing a tested piece; the rotatable connecting rod is connected with the measuring antenna, and the rotatable connecting rod is used for fixing the measuring antenna; the measuring antenna is arranged over the object placing table, so that the object placing table is located in a quiet zone of the measuring antenna; and the rotatable connecting rod can perform arc-shaped motion above the measured piece so as to drive the measuring antenna to perform spherical scanning on the measured piece. According to the invention, the test distance is effectively shortened through the compact field reflecting surface or the plane wave generator, so that the space of a required darkroom is reduced, the device can better adapt to tested pieces with different sizes through the lifting assembly, and spherical scanning or measurement of the tested pieces can be realized through the rotatable connecting rod.

Description

technical field [0001] The invention relates to the technical field of antenna testing devices, in particular to air interface testing equipment in a compact field. Background technique [0002] Antennas are generally in the far-field state when they are used for communication, radar, remote control, etc. Therefore, in order to correctly measure the radiation characteristics of the antenna, it is necessary to have an ideal test field that can provide uniform plane electromagnetic waves. In order to reduce the measurement error caused by the phase difference of electromagnetic waves incident on the caliber of the antenna to be tested, the distance R between the antenna to be tested and the measuring antenna must be greater than the minimum test distance 2D 2 / λ. However, with the large-scale deployment of 5G, the operating frequencies of antennas, mobile phones, and various intelligent IoT terminals are gradually increasing, and the far-field conditions of base station anten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/08
CPCG01R29/0821
Inventor 曹宝华
Owner NANJING JIEXI TECH
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