A method for designing an L-band wide-beam high-power array surface and the array surface

By optimizing the phase shift value using self-developed and intelligent optimization algorithms, an L-band wide-beam high-power array was designed, resolving the contradiction between wide beam and high power in existing technologies and achieving increased radiated power and extended range of the array.

CN116306213BActive Publication Date: 2026-03-20NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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Patent Information

Application Number
CN202211550253.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-05
Publication Date
2026-03-20
Estimated Expiration
2042-12-05

AI Technical Summary

Technical Problem

Existing technologies struggle to achieve a balance between wide beamwidth and high power in L-band arrays, resulting in insufficient radiated power and impacting the range and extent of electromagnetic attacks.

Method used

By employing a self-developed optimization algorithm, and by designing inputs such as the number of antenna elements, spacing, beamwidth parameters, and control switches along the azimuth and elevation directions, and combining particle swarm optimization and genetic algorithms to optimize the phase shift value, an L-band wide-beam high-power array is designed to achieve equal amplitude but different phases.

Benefits of technology

It achieved a radiated power increase of over 10.7 dB in wide-beam operating mode, expanded the effective range of the array, resolved the contradiction between wide beam and high power, and met battlefield requirements.

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Abstract

The application discloses a kind of L wave band wide-beam high-power array surface design method and array surface, belong to radar system design and electronic countermeasure technical field, by inputting design into self-built optimization algorithm and optimizing, obtain N el ×N az Phase shift value, that is, by using the mode of equal amplitude and different phase, a wide-beam working mode with a beam width greater than 20°×20° is realized, which overcomes the defect that the existing technology needs to close part of the function by using the mode of equal amplitude and same phase, resulting in lower radiation power, and can increase the radiation power by more than 10.7dB, thereby expanding the range of the array, solving the contradiction between wide-beam and high-power in the array, and realizing wide-beam working mode and high-power at the same time.
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