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Multi-degree-of-freedom antenna test platform

A test platform and a technology of degrees of freedom, applied in the direction of antenna radiation pattern, etc., can solve the problems of long measurement period, maneuvering transfer, space position adjustment, stable adjustment, test accuracy and efficiency defects, and large antenna test interference, etc., to achieve The effect of improving test performance, improving operation stability and practicality, and good maneuverability

Inactive Publication Date: 2020-06-09
北京星英联微波科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The most primitive antenna test is carried out manually, the measurement period is long and the error is large, so a special test system is required to test the performance of the antenna. Later, an electric turntable is used to adjust the polarization angle and pitch angle of the antenna. In order to ensure the phase center No change, usually the pitch motion needs to use arc guide rail components, so that it can rotate 0-90 degrees
The equipment has the following disadvantages: first, the entire equipment is constructed of metal parts, and the more metal parts there are in the surrounding range of the antenna, the greater the interference caused to the antenna test; second, the equipment parts are huge, the manufacturing cost is high, and the installation difficult to debug
[0003] Chinese patent (Notice No. CN103066388B) discloses a two-degree-of-freedom antenna testing robot. Although it can improve the above problems, there are deficiencies in the aspects of maneuver transfer, spatial position adjustment, stability adjustment, test accuracy and efficiency.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0022] see Figure 1~3 , in an embodiment of the present invention, a multi-degree-of-freedom antenna test platform includes a horizontally arranged mobile mounting plate 9, and the four corners of the lower end of the mobile mounting plate 9 are vertically provided with steering bearing sleeves 5, and the steering bearing sleeves 5 are all vertically arranged. Steering shafts 6 are provided, and the steering shafts 6 all stretch out the steering bearing sleeve 5 downwards, and the lower ends of the steering shafts 6 are provided with steering wheel frames 8, and the lower ends of the steering wheel frames 8 are all provided with moving wheels 7 through the rotating shafts. The middle position of the mobile installation plate 9 is horizontally provided with a mobile guide groove 10, and the inside of the mobile installation plate 9 on the lower side of the mobile guide groove 10 is horizontally embedded with a battery pack 2, and the left end of the mobile guide groove 10 is ho...

Embodiment 2

[0025] On the basis of Embodiment 1, through the cooperation of the steering bearing sleeve 5, the steering shaft 6, the steering wheel frame 8 and the moving wheel 7, the device has a good ability to turn and move, and the arc-shaped conductive slider 20 and the arc-shaped conductive The cooperation of the chute 21 realizes coupling power supply, which significantly improves the power supply stability of the device, and the storage battery can make the device run independently for a period of time, which improves the practicability of the device.

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Abstract

The invention relates to the field of antenna test devices, in particular to a multi-degree-of-freedom antenna test platform. The multi-degree-of-freedom antenna test platform comprises a horizontally-arranged movable mounting plate, the steering bearing sleeves are vertically arranged at the four corners of the lower end of the movable mounting plate correspondingly. Steering rotating shafts arevertically arranged in cooperation with the steering bearing sleeves. The steering rotating shafts downwards extend out of the steering bearing sleeves; steering wheel carriers are arranged at the lower ends of the steering rotating shafts; moving wheels are arranged at the lower ends of the steering wheel carriers through rotating shafts; a moving guide groove is horizontally formed in the middleposition of the moving mounting plate; a driving motor is horizontally arranged at the left end of the movable guide groove; by multi-angle movement, the multi-degree-of-freedom antenna test platformhas good maneuverability; the multi-degree-of-freedom antenna test platform is suitable for a high-strength testing environment, through a spatial multi-angle adjusting structure, the multi-degree-of-freedom antenna test platform can meet the requirement for fixed testing at any angle and any position within a certain spatial range, the testing performance of the multi-degree-of-freedom antenna test platform is remarkably improved, and through a multi-guide structure and coupling power supply, the operation stability and practicability of the multi-degree-of-freedom antenna test platform areremarkably improved.

Description

technical field [0001] The invention relates to the field of antenna testing devices, in particular to a multi-degree-of-freedom antenna testing platform. Background technique [0002] Antenna is an essential device for wireless devices to transmit and receive radio signals. Its quality directly affects the performance of wireless devices and has an important impact on the test of antenna performance. During the antenna test process, the polarization angle and pitch angle of the antenna need to be precisely positioned to test the ability of the antenna to receive radio signals in all directions in space. The most primitive antenna test is carried out manually, the measurement period is long and the error is large, so a special test system is required to test the performance of the antenna. Later, an electric turntable is used to adjust the polarization angle and pitch angle of the antenna. In order to ensure the phase center No change, usually the pitch motion needs to use ...

Claims

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Application Information

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IPC IPC(8): G01R29/10
CPCG01R29/10
Inventor 胡南谢文青刘建睿赵丽新
Owner 北京星英联微波科技有限责任公司
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