系统工程与电子技术 ›› 2025, Vol. 47 ›› Issue (1): 1-11.doi: 10.12305/j.issn.1001-506X.2025.01.01

• 电子技术 • 上一篇    下一篇

基于多模态超表面的无天线罩隐身阵列天线

黎亮1, 高红伟2,*, 张彬超3, 金城2   

  1. 1. 北京理工大学集成电路与电子学院, 北京 100081
    2. 北京理工大学网络空间安全学院, 北京 100081
    3. 清华大学电子工程系, 北京 100084
  • 收稿日期:2023-11-03 出版日期:2025-01-21 发布日期:2025-01-25
  • 通讯作者: 高红伟
  • 作者简介:黎亮(1985—), 男, 博士, 主要研究方向为人工电磁表面、阵列天线
    高红伟(1986—), 男, 副教授, 博士, 主要研究方向为计算电磁学、电磁表面
    张彬超(1992—), 男, 助理教授, 博士, 主要研究方向为隐身电磁表面、电磁隐身天线
    金城(1984—), 男, 教授, 博士, 主要研究方向为电磁表面、隐身天线
  • 基金资助:
    国家自然科学基金(62271050)

Radome-free stealth array antenna based on multimodal hypersurface

Liang LI1, Hongwei GAO2,*, Binchao ZHANG3, Cheng JIN2   

  1. 1. School of Integrated Circuits and Electronics, Beijing Institute of Technology, Beijing 100081, China
    2. School of Cyberspace Science and Technology, Beijing Institute of Technology, Beijing 100081, China
    3. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2023-11-03 Online:2025-01-21 Published:2025-01-25
  • Contact: Hongwei GAO

摘要:

针对星载天线无法通过天线罩实现隐身的难题, 提出星载无天线罩自隐身天线。通过多模谐振原理并利用差异化激励方法, 构建具有单模态宽带隐身、双模态隐身-反射和双模态隐身-辐射特性的多模态电磁超表面, 进而设计辐射-隐身一体化天线。实测结果表明, 在3.05~4.95 GHz和6.4~10.5 GHz的带外吸收带, 实现雷达散射截面(radar cross section, RCS)缩减; 在5.7~6.15 GHz的频率区间内轴比低于3 dB, 天线的增益为15.3 dBi, 所设计的无天线罩一体化隐身圆极化阵列天线具有带外RCS缩减特性和良好的带内圆极化辐射性能。

关键词: 星载, 无天线罩, 隐身, 天线, 电磁表面

Abstract:

Aiming at the difficult problem that satellite-borne antennas cannot achieve stealth through radomes, this paper innovatively proposes a satellite-borne radome-free self-stealth antenna. By using the principle of multimode resonance and the differentiated excitation method, a multimodal electromagnetic hypersurface with single-modal broadband stealth, dual-modal stealth-reflection and dual-modal stealth-radiation characteristics is constructed, and then a radiation-stealth integrated antenna is designed. The measured results show that significant reduction in radar cross section (RCS) is achieved in the out-of-band absorption bands of 3.05-4.95 GHz and 6.4-10.5 GHz; within the frequency range of 5.7-6.15 GHz, the axial ratio is lower than 3 dB, and the gain of the antenna is 15.3 dBi. The designed radome-free integrated stealth circularly polarized array antenna has the characteristics of out-of-band RCS reduction characteristics and good in-band circularly polarized radiation performance.

Key words: spaceborne, radome free, stealth, antenna, metasurface

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