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Electrical Performance Compensation Method of Deformed Area Array Antenna Based on Electromechanical Coupling and Fourier Transform

A Fourier transform, electromechanical coupling technology, applied in antennas, antenna arrays, circuits, etc., can solve problems such as electrical performance deterioration of area array antennas

Active Publication Date: 2017-10-17
XIDIAN UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

This method can effectively solve the problem of the deterioration of the electrical performance of the area array antenna caused by the working load, and ensure the normal operation of the area array antenna in the service environment. Electrical properties provide theoretical guidance

Method used

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  • Electrical Performance Compensation Method of Deformed Area Array Antenna Based on Electromechanical Coupling and Fourier Transform
  • Electrical Performance Compensation Method of Deformed Area Array Antenna Based on Electromechanical Coupling and Fourier Transform
  • Electrical Performance Compensation Method of Deformed Area Array Antenna Based on Electromechanical Coupling and Fourier Transform

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Embodiment Construction

[0074] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0075] refer to figure 1 , the present invention is based on electromechanical coupling and Fourier transform method for electrical performance compensation of deformed area array antenna, the specific steps are as follows:

[0076] Step 1, determine the geometric model parameters, material properties and electromagnetic working parameters of the area array antenna

[0077] 1.1 Determine the structural geometric model of the area array antenna based on the array shape, aperture size, type, number and arrangement of radiation elements in the array, and the structural parameters of the antenna frame;

[0078] 1.2. Determine the material properties of the cold plate, T / R components, ribs, and radiation elements in the area array antenna system, including density ρ, elastic modulus E, and Poisson’s ratio μ.

[0079] 1.3. Determine the electromagnetic work...

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Abstract

The invention discloses a method for compensating electrical properties of deformed area array antennas based on electromechanical coupling and Fourier transform, including: 1) determining the parameters of the area array antennas, that is, M linear array antennas; 2) obtaining the vibration environment below by finite element analysis 3) Using the linear array antenna electromechanical coupling model to calculate the electrical performance of the i-th linear array antenna after deformation; 4) Decomposing the electrical performance into ideal linear array electrical performance and linear array electrical performance change items; 5) Perform fast Fourier transform on 4) respectively to obtain the adjustment amount of the excitation current amplitude and phase for compensating the antenna spatial phase error; 6) judge whether the adjustment amount of all excitation current amplitudes and phases has been calculated; 7) convert the excitation current Adjust the amplitude and phase into the electromechanical coupling model to calculate the electrical performance of the deformed area array antenna; 8) judge whether the electrical performance of the deformed area array antenna after compensation meets the index requirements. The invention can ensure good electrical performance for the area array antenna in service.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a method for compensating the electric properties of deformed area array antennas based on electromechanical coupling and Fourier transform. Background technique [0002] Antennas are widely used in radio systems such as communications, broadcasting, television, radar, and navigation. They can radiate and receive radio waves and are an indispensable device in radio communications. Compared with a single antenna, the area array antenna has high radiation intensity, high reliability, multiple functions, strong detection and tracking capabilities, and good stealth performance, so it is widely used in various radar systems, navigation systems, and electronic countermeasures. [0003] The antenna is the core component of the radar system, and the performance of the radar system largely depends on the electrical performance of the antenna. The antenna structure is the car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q21/00H01Q3/26
Inventor 王从思王艳康明魁王伟段宝岩黄进保宏毛静殷蕾杜敬利
Owner XIDIAN UNIV
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