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A Fast Determination Method for the Adjustment Quantity of the Active Panel of Large Parabolic Antenna Facing the Shaped Surface

A parabolic antenna and determination method technology, applied in the directions of antennas, instruments, calculations, etc., can solve the problems of not directly giving the determination method of the active adjustment adjustment amount of the antenna panel, and the electrical performance is not optimal.

Active Publication Date: 2018-10-09
西安电子科技大学工程技术研究院有限公司
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Problems solved by technology

However, this kind of direct adjustment relative to the best matching reflective surface does not give the best root mean square error of the surface, and the electrical performance is not optimal; Method for determining the adjustment amount of antenna panel active adjustment or surface type conversion

Method used

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  • A Fast Determination Method for the Adjustment Quantity of the Active Panel of Large Parabolic Antenna Facing the Shaped Surface
  • A Fast Determination Method for the Adjustment Quantity of the Active Panel of Large Parabolic Antenna Facing the Shaped Surface
  • A Fast Determination Method for the Adjustment Quantity of the Active Panel of Large Parabolic Antenna Facing the Shaped Surface

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Embodiment Construction

[0061] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0062] Such as figure 1 As shown, a method for quickly determining the active panel adjustment of a large parabolic antenna facing a shaped surface, the specific steps are as follows:

[0063] Step 1, determine the antenna structure model and actuator support nodes

[0064] According to the structural parameters, operating frequency and material properties of the large parabolic antenna, determine the antenna structure model, establish the antenna structural model in the finite element mechanical analysis software, and determine the supporting nodes of the actuator; the structural parameters of the large parabolic antenna include the diameter of the reflector and focal length, the material properties of large parabolic antennas include the density and elastic modulus of the antenna back frame material and reflector panel material.

[0065] Step 2, det...

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Abstract

The invention discloses a shaped surface-oriented quick determination method for adjustment quantity of an active panel of a large parabolic antenna. The method comprises the steps of determining an antenna structure model and an actuator supporting node; determining an overall reflection surface shape of the large parabolic antenna under two working modes, and determining a fitting equation of a shaped surface; extracting node information of the active panel on the refection surface; calculating a target curved surface with minimum fitting root mean square error with the shaped surface; determining corresponding nodes of the panel and the target curved surface, and calculating an actuator adjustment quantity; calculating axial errors of all nodes of the adjusted overall reflection surface; calculating an antenna gain using an electromechanical coupling, judging whether the antenna gain meets the requirement, and outputting an optimal actuator adjustment quantity. By adopting the method, the optimal adjustment quantity of the active panel actuator of the antenna can be directly and accurately adjusted, so that the adjusted overall reflection surface of the antenna is closer to the shaped surface, the electric performance of the antenna can be obviously improved, and an accurate surface shape conversion function of the large parabolic antenna under two working modes is realized.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to a method for quickly determining the adjustment amount of an active panel of a large parabolic antenna facing a shaped surface, which can be used to quickly calculate the optimal adjustment amount of an active panel actuator of a large parabolic antenna facing a shaped surface , so as to realize the precise conversion function of the surface shape of the large parabolic antenna under the two working modes, which has important academic significance and engineering application value. Background technique [0002] Large parabolic antennas are widely used in the fields of radio astronomy, radar, communication and space detection. With the wide application of large area antennas, different systems have different special requirements for area antennas. These requirements also promote the development of area antenna technology. Keep moving forward. Large-scale surface antennas have th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q19/10H01Q15/14H01Q15/16G06F17/50
CPCG06F30/00G06F30/23H01Q15/14H01Q15/16H01Q19/10
Inventor 王从思肖岚项斌斌王伟许谦保宏蒋力王娜李申米建伟朱敏波王浩
Owner 西安电子科技大学工程技术研究院有限公司
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