Calibration device

A technology for calibrating devices and receiving devices, applied in directions such as antenna radiation patterns, can solve problems such as large space, resources, waste, etc., to avoid interference and achieve the effect of calibration

Active Publication Date: 2019-02-15
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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  • Abstract
  • Description
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Problems solved by technology

The calibration sites for microwave antennas and field strength probes are microwave anechoic chambers, which take up a lot of space and resources, resulting in waste

Method used

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Embodiment Construction

[0052] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0053] Considering that the calibration sites of microwave antenna and field strength probe are both microwave anechoic chambers, under the condition of limited experimental site resources, the solution is to integrate the calibration devices of microwave antenna and field strength probe to achieve the purpose of maximizing the use of microwave anechoic chamber. The invention provides a calibration device, which is set in a microwave anechoic chamber, and the microwave anechoic chamber is provided with: a transmitting devic...

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Abstract

The invention discloses a calibration device, comprising a transmitting device capable of emitting microwaves, and a receiving device cooperating with the transmitting device. The receiving device comprises a probe assembly, a first antenna assembly, and a first adjusting assembly. The probe assembly is used for detecting field intensity near the receiving device. The first antenna assembly is used for receiving the microwave. The first adjusting assembly is combined with the antenna assembly, and the first adjusting assembly moves the antenna assembly in a direction away from the probe assembly to a preset position when the probe assembly works. According to calibration device, the antenna coefficient, the direction map and the axial ratio of the microwave antenna can be calibrated, and the frequency response, three-axis and other parameters of the field intensity probe can be calibrated by arranging the probe assembly and the first antenna assembly. The antenna assembly can be removed when the probe assembly works by arranging the first adjusting assembly, so that the interference of the first antenna assembly to the probe assembly can be avoided, and the integrated calibration can be achieved.

Description

technical field [0001] The invention relates to the technical field of electronic testing. More specifically, it relates to a calibration device. Background technique [0002] The antenna is an important front-end device that is inseparable from any radio communication system, and its quality directly affects the overall performance of the radio system. How to ensure that the antenna can always meet the use requirements requires regular calibration of the antenna. [0003] Field strength is one of the basic parameters of radio, and the calibration accuracy of field strength parameters directly affects the accuracy of field strength measurement results. At present, the measurement and metrology requirements for field strength parameters are very common in both civil and military fields, and the value transfer significance is extremely important. The State Council document "Guo Fa (1987) No. 31" "Management Measures of the People's Republic of China for the Verification of ...

Claims

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Application Information

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IPC IPC(8): G01R29/10
CPCG01R29/10
Inventor 黄承祖刘星汛彭博董佳刘东霞黄建领郑从伟雷垒
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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