Element shape function based reflector antenna electromechanical integration design method

A design method and electromechanical integration technology, applied in the field of radar, can solve problems affecting calculation accuracy, fitting error, fitting deformed reflective surface cannot accurately reflect the actual reflective surface, etc.

Active Publication Date: 2014-10-22
XIDIAN UNIV
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Problems solved by technology

However, the disadvantage of this method is that since the fitted deformed reflective surface is used instead of the actual reflective surface for electrical performance calculation, the fitted deformed reflective surface cannot accurately reflect the actual reflective surface, which will introduce fitting errors and affect the calculation accuracy.

Method used

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  • Element shape function based reflector antenna electromechanical integration design method
  • Element shape function based reflector antenna electromechanical integration design method
  • Element shape function based reflector antenna electromechanical integration design method

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Embodiment Construction

[0058] Attached below figure 1 , the specific embodiment of the present invention is described in further detail:

[0059] Step 1. Input the structural parameters and electrical parameter information of the reflector antenna provided by the user. The structural parameters include aperture, focal length, reflective panel parameters, back frame parameters, center body parameters and working condition parameters. The electrical parameters include operating wavelength and feed source type. , feed primary pattern, total radiated power and required electrical performance parameters, including gain, sidelobe and pointing accuracy.

[0060] Step 2, according to the structural parameters provided by the user, calculate the node coordinates, select the appropriate element type and shape function to establish the structural finite element model.

[0061] In step 3, according to the electrical parameters provided in step 1, the far-field electric field of the ideal reflector antenna is c...

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Abstract

The invention discloses an element shape function based reflector antenna electromechanical integration design method. The method particularly includes the steps: (1) inputting reflector parameters; (2) establishing a structural finite element model; (3) computing an ideal far-zone electrical field of a reflector antenna; (4) adding constraint or boundary conditions; (5) applying working load; (6) solving the finite element model; (7) extracting node, unit and shape function information; (8) computing an element coefficient matrix; (9) assembling an overall coefficient matrix; (10) computing variable quantity of the far-zone electrical field under the action of the load; (11) computing the far-zone electrical field; (12) judging whether electrical property meets requirements or not; (13) outputting an antenna structure design scheme; (14) modifying structure parameters. The element shape function based reflector antenna electromechanical integration design method has the advantages that the method overcomes the shortcoming of error introduction by a fitting method by extracting element shape functions in the structural finite element model, constructing the coefficient matrix and assembling the overall coefficient matrix, and is high in computing precision and less in computing quantity.

Description

technical field [0001] The invention belongs to the field of radar technology, in particular to an electromechanical integration design method for reflector antennas based on unit shape functions in the field of radar antennas. The invention can effectively realize the electromechanical integration design of the reflector antenna, and can be used to guide the structural design of the reflector antenna and analyze and evaluate the electromechanical integration of the reflector antenna under different working conditions. Background technique [0002] Reflector antennas are widely used in various fields such as communication, radar, radio astronomy, microwave communication, satellite communication and tracking, and remote sensing. The reflector antenna structure is a typical mechatronic structure, and its mechanical structure performance and electrical performance interact and restrict each other. In order to design a high-performance reflector antenna, it is necessary to cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 张树新段宝岩杨癸庚杨东武张逸群杜敬利
Owner XIDIAN UNIV
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