现代防御技术 ›› 2025, Vol. 53 ›› Issue (3): 139-149.DOI: 10.3969/j.issn.1009-086x.2025.03.016

• 目标特性与探测跟踪技术 • 上一篇    

圆锥台共形阵半空间扫描波束极化综合与分析

吕强1, 魏宇飞1, 陈曦2, 刘皓鹏1   

  1. 1.北京电子工程总体研究所,北京 100854
    2.西安电子科技大学 天线与微波技术国防科技重点实验室,陕西 西安 710071
  • 收稿日期:2024-01-27 修回日期:2024-07-25 出版日期:2025-06-28 发布日期:2025-07-01
  • 通讯作者: 陈曦
  • 作者简介:吕强(1990-),男,内蒙古鄂尔多斯人。工程师,硕士,研究方向为探测制导与电子对抗。

Half-Space Scanning Beam and Polarization Synthesis of Conical Conformal Array

Qiang LÜ1, Yufei WEI1, Xi CHEN2, Haopeng LIU1   

  1. 1.Beijing Institute of Electronic System Engineering,Beijing 100854,China
    2.National Key Laboratory of Science and Technology on Antenna and Microwaves,Xidian University,Xi’an 710071,China
  • Received:2024-01-27 Revised:2024-07-25 Online:2025-06-28 Published:2025-07-01
  • Contact: Xi CHEN

摘要:

共形阵天线受载体曲率影响,各阵元的方向图和极化方向均不相同,造成共形阵天线在大角度波束综合时存在波束综合效率低、高交叉极化电平难以抑制等问题。目前大多采用差分进化等算法进行共形阵全局优化,阵列综合的过程复杂、效率低。基于一种圆锥台结构的共形阵天线布局,采用以投影规则为依据的波束极化综合算法,实现了对共形阵的大角度波束扫描和高极化纯度的高效综合。计算结果表明,提出的解析算法能够实现共形阵天线在半空域内的高性能波束扫描,在主波束内始终保持良好的低交叉极化特性。最后采用基于全波数值方法的高频仿真软件验证了所提出算法的准确性和有效性。该方法可为高性能共形阵的工程实现提供理论基础。

关键词: 共形阵, 交叉极化, 方向图综合, 投影规则, 宽角扫描

Abstract:

The conformal array antenna is affected by the curvature of the carrier, and the pattern and polarization direction of each element are different, resulting in low beam synthesis efficiency and difficulty in suppressing high cross polarization levels when synthesizing wide-angle scanning beams. At present, most algorithms such as differential evolution are used for global optimization of conformal arrays, the process of array synthesis is complex and the synthesis efficiency is low. This paper is based on a conical conformal array layout, using a beam polarization synthesis algorithm based on projection rules to achieve efficient synthesis of wide-angle beam scanning and high polarization purity. The calculation results show that the proposed analytical algorithm can achieve high-performance beam scanning of conformal array in the half space, maintaining good low cross polarization characteristics in the main beam. The accuracy and effectiveness of the proposed algorithm are verified using high-frequency simulation software based on full wave numerical methods. This method can provide a theoretical basis for the engineering implementation of high-performance conformal array.

Key words: conformal array, cross polarization, pattern synthesis, projection rule, wide-angle scanning

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