A method for predicting the electrical performance of a large-scale planar unidirectional folded array antenna in all operating conditions

By constructing a correlation model between the radiation characteristics of array elements and the total radiation characteristics of the folded array antenna, the problems of accuracy and computational efficiency in the electrical performance analysis of large-scale planar unidirectional folded array antennas are solved, and fast and accurate electrical performance prediction is achieved.

CN115146211BActive Publication Date: 2026-04-07XIDIAN UNIV
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Patent Information

Application Number
CN202210736922.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-27
Publication Date
2026-04-07
Estimated Expiration
2042-06-27

AI Technical Summary

Technical Problem

Existing technologies struggle to accurately analyze the electrical performance of large-scale planar unidirectional folded array antennas, and require extensive computation, failing to effectively account for the mutual coupling effects between array elements and the impact of errors on electrical performance.

Method used

By constructing a correlation model between the radiation characteristics of array elements and the total radiation characteristics of the folded array antenna, and considering the mutual coupling effect, offset error and attitude deflection error between array elements, the pattern product theorem and the full-wave analysis method are used to quickly and accurately analyze the electrical performance of the array antenna.

Benefits of technology

It enables accurate electrical performance prediction of large-scale planar unidirectional folded array antennas, reduces computation time, improves analysis efficiency, and is suitable for practical engineering design.

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Abstract

The application discloses a large-scale plane one-way folding array antenna full-working-condition electric performance prediction method, which comprises the following steps: (1) determining a folding position according to a folding angle under different working conditions; (2) determining an array element position after folding according to the folding position and array antenna geometric parameters; and (3) determining a mode excitation coefficient according to each array element position information and single array element mode information, and then calculating electric performance under different working conditions. The application can quickly and accurately analyze folding array antenna radiation and scattering, and has important engineering significance for array antenna analysis and design.
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