Forecasting method for influences, on electrical performances, of array surface morphology of conformal load-bearing microstrip antenna

Abstract

The invention discloses a forecasting method for influences, on electrical performances, of array surface morphology of a conformal load-bearing microstrip antenna. The method mainly solves the problem of incapability of forecasting influences, on electrical performances, of array surface morphology in the prior art. The implementation steps of the method include: (1) establishing a geometric model according to design index and obtaining ideal array surface morphology; (2) utilizing a fractal function to describe array surface morphology errors caused by manufacturing, applying pneumatic and temperature load to a mechanical model, and obtaining array surface deformation data; (3) utilizing multi-kernel support vector regression to refactor array surface morphology change amount caused by service load; (4) obtaining actual array surface morphology by using rectifying the ideal array surface morphology; and (5) calculating the electrical performances of the antenna according to the actual array surface morphology, and modifying the structure of the antenna according to extracted electrical performance indexes to obtain an optimum antenna design. By the method, the level of influences, on the electrical performances, of the array surface morphology can be evaluated, electromechanical integration analysis can be realized, development cycle can be shortened, and development cost can be lowered.

Description

technical field [0001] The invention belongs to the technical field of antennas, and in particular relates to a method for predicting the impact of conformal load-carrying microstrip antenna array shape on electrical performance. Antenna mechanical and electrical comprehensive analysis, design and compensation control and other fields. Background technique [0002] Conformal bearing microstrip antenna refers to embedding the microstrip antenna into the skin structure of the weapon platform. Under the premise of satisfying the mechanical properties of the platform structure, it also needs to achieve high electromagnetic performance. It can be applied to various types of land and sea in the future. Air-to-air weapons and equipment, such as variant aircraft, unmanned aerial vehicles, airship early warning aircraft, smart tanks, stealth warships, etc., are the key technologies to realize the stealth, multi-function, intelligence and high mobility of weapon platforms. figure 1 A...

AI Technical Summary

Problems solved by technology

[0009] The above public documents still have the following deficiencies: 1) Although the above documents use experimental methods to find that factors such as mechanical stress, honeycomb, and dielectric materials can affect the electromechanical properties of the antenna, they lack theoretical predictions on the influence of the front shape on the electrical properties method, resulting in the inability to predict the degree of impact of front morphology on electrical performance during manufacturing and service at the design stage

2) Because this type of antenna has high integration, material non-uniformity and multi-discipline, the existing technology usually uses the empirical design method of experimental samples, which leads to high development cost, long cycle time and poor product performance consistency

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