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This chapter comprehensively explores the mathematical model and theoretical analysis method of the metamaterial electromagnetic wave absorption circuit and breaks through the key technologies limiting the volume, weight, and manufacturing cost of absorbing material in the working frequency range of civil aviation navigation equipment. Furthermore, a lightweight and thin absorbing material sample is developed. The sample test is conducted on the absorbing material. It not only becomes the first lightweight and thin absorbing material that can be applied in the working band of civil aviation navigation equipment in China but also lays a theoretical and technical foundation for lightweight and thin absorbing material to mitigate the influence of large obstacles on heading signals at airports. As shown by the test results, the multipath interference reduction rate of the absorbing materials in the frequency range of 108–112 MHz and 328–336 MHz is over 90%, meeting the requirements of design and application (Guo et al., Specification for site setting of civil aviation communication navigation surveillance stations—part 1: navigation. Civil Aviation Industry Standards of the People's Republic of China MH/T 4003. 1–2021, (2021); Wang and Wei, Requirements for electromagnetic environment of aeronautical radio navigation stations. PRC National Standard GB, (2013); Jiang and Xu, Instrument landing systems (ILS)—part 1: glide Beacon performance requirements and test methods. PRC National Standard. GB/T, (2006); Jiang and Xu, Instrument landing systems (ILS)—part 3—heading Beacon performance requirements and test methods. PRC National Standard. GB/T).

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Research on the Application of Novel Metamaterials in Multipath Interference Reduction at Civil Aviation Airports

  • 会议论文

  • 发表日期：

    2026年

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  • Zhengbo Yang,
  • Yuankai Li,
  • Jiaquan Ye,
  • Huan Lin,
  • Fei Liang

摘要

This chapter comprehensively explores the mathematical model and theoretical analysis method of the metamaterial electromagnetic wave absorption circuit and breaks through the key technologies limiting the volume, weight, and manufacturing cost of absorbing material in the working frequency range of civil aviation navigation equipment. Furthermore, a lightweight and thin absorbing material sample is developed. The sample test is conducted on the absorbing material. It not only becomes the first lightweight and thin absorbing material that can be applied in the working band of civil aviation navigation equipment in China but also lays a theoretical and technical foundation for lightweight and thin absorbing material to mitigate the influence of large obstacles on heading signals at airports. As shown by the test results, the multipath interference reduction rate of the absorbing materials in the frequency range of 108–112 MHz and 328–336 MHz is over 90%, meeting the requirements of design and application (Guo et al., Specification for site setting of civil aviation communication navigation surveillance stations—part 1: navigation. Civil Aviation Industry Standards of the People's Republic of China MH/T 4003. 1–2021, (2021); Wang and Wei, Requirements for electromagnetic environment of aeronautical radio navigation stations. PRC National Standard GB, (2013); Jiang and Xu, Instrument landing systems (ILS)—part 1: glide Beacon performance requirements and test methods. PRC National Standard. GB/T, (2006); Jiang and Xu, Instrument landing systems (ILS)—part 3—heading Beacon performance requirements and test methods. PRC National Standard. GB/T).