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Electromechanical coupling and Fourier transform based electrical performance compensation method for plane array deformed antenna

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

Active Publication Date: 2015-12-16
XIDIAN UNIV
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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

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  • Electromechanical coupling and Fourier transform based electrical performance compensation method for plane array deformed antenna
  • Electromechanical coupling and Fourier transform based electrical performance compensation method for plane array deformed antenna
  • Electromechanical coupling and Fourier transform based electrical performance compensation method for plane array deformed antenna

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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 an electromechanical coupling and Fourier transform based electrical performance compensation method for a plane array deformed antenna. The method comprises the following steps of: 1) determining a parameter of a plane array antenna, namely the M(th) linear array antenna; 2) carrying out finite element analysis to acquire a structural deformation quantity of the plane array antenna in a vibration environment; 3) calculating the electrical performance after the i(th) linear array antenna is deformed by using an electromechanical coupling model of the linear array antenna; 4) dividing the electrical performance into an ideal linear array electrical performance and a linear array electrical performance change item; 5) respectively carrying out rapid Fourier transform on the 4) to obtain adjustment quantities of excitation current amplitude and phase for compensating an antenna space phase error; 6) judging whether the adjustment quantities of all excitation current amplitudes and phases are calculated or not; 7) inputting the adjustment quantities of the excitation current amplitudes and phases into the electromechanical coupling model, and calculating the electrical performance of the plane array deformed antenna; and 8) judging whether the electrical performance of the plane array deformed antenna meets the index requirement or not. According to the method, the plane array antenna in service can be ensured to have favorable electrical performance.

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 Applications(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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