Antenna array plane directional diagram forming method for analyzing and solving phase weighted value

By analytically solving the phase weighting value using Fourier transform and sidelobe optimization algorithms, the problems of local optimum trapping and slow solution speed in antenna array pattern generation are solved, achieving efficient pattern control and fast response, and improving the performance of wireless communication, radar and satellite communication.

CN121790760APending Publication Date: 2026-04-03NANJING RES INST OF ELECTRONICS TECH
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Patent Information

Application Number
CN202511947188.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-12-23
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing phase weighting methods suffer from local optima trapping in antenna array pattern generation and are slow to solve in dynamic environments, making it difficult to achieve high accuracy and fast response.

Method used

The electric field distribution is decomposed into a weighted sum of two pure phase fields by Fourier transform. The array element subset is divided and the phase distribution is loaded. The phase parameters are adjusted by combining the sidelobe optimization algorithm to achieve analytical solution of the phase weight value to optimize the radiation pattern.

Benefits of technology

It enables precise control of the antenna pattern, improves system performance and environmental adaptability, reduces computational resource consumption, and lowers hardware costs.

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Abstract

The invention relates to an antenna array plane directional diagram forming method for analyzing and solving a phase weighted value, which comprises the following steps of: analyzing and solving the phase weighted value: obtaining target electric field distribution at an antenna array plane through Fourier transform according to a target directional diagram; electric field distribution is decomposed into a weighted sum of two pure phase fields, and an antenna array plane is divided into two groups of array element subsets which are distributed alternately according to the weighted sum; phase distribution corresponding to the pure phase field is loaded to the two array element subsets, a radiation field with a target forming directional diagram is obtained through array synthesis, and the directional diagram comprises a main lobe corresponding to the target directional diagram and a side lobe caused by a periodic grating lobe; and side lobe optimization: by adjusting the phase distribution of the target directional diagram and traversing the side lobe intensity of the actual directional diagram under different phase parameters, selecting the phase distribution enabling the side lobe to be the lowest as an optimized target phase so as to suppress the side lobe caused by the grating lobe. According to the method, the phase weighted value is solved through rapid analysis, and accurate control over the antenna directional diagram is achieved.
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