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Excellent angular and electrical performance damage tolerance of wave-absorbing laminate via gradient A-T-A design

Composites Communications, ISSN: 2452-2139, Vol: 46, Page: 101838
2024
  • 4
    Citations
  • 0
    Usage
  • 2
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    4
  • Captures
    2
  • Mentions
    1
    • News Mentions
      1
      • 1

Most Recent News

New Findings on Composites Communications Described by Investigators at National University of Defense Technology (Excellent Angular and Electrical Performance Damage Tolerance of Wave-absorbing Laminate Via Gradient A-t-a Design)

2024 APR 24 (NewsRx) -- By a News Reporter-Staff News Editor at Politics, Law & Government Daily -- Data detailed on Global Views - Composites

Article Description

Besides broadband electromagnetic wave absorption, electrical performance damage tolerance should be designed and evaluated to compete with advanced detection technologies. In this work, an A-T-A (absorption-transmission-absorption) design strategy with gradient electromagnetic parameters is proposed to enhance angular and electrical performance damage tolerance of wave-absorbing laminated structure in 6–18 GHz frequency band. The quartz fiber cloth with 700 μm periodic inter-bundle pores served as a transmission layer and was embedded into Fe 3 Co 7 /epoxy resin magnetic absorption film to improve the maneuverability of input impedance. Meanwhile, Fe 3 Co 7 with a particle size between 10 and 30 μm can easily enter the inter-bundle pore to form periodic pattern, enriching the electromagnetic loss mechanisms. Two significant electromagnetic resonance peaks for the designed 5.3 mm thick gradient A-T-A laminated structure occur in the vicinity of 7 GHz and 15 GHz, realizing reflection loss less than −10 dB at an incidence angle of 0–40° in TE mode. When the penetrating damage area accounts for 20 %, effective absorption bandwidth almost covers 6–18 GHz. Therefore, gradient A-T-A structure provides an insight for realizing excellent angular and electrical performance damage tolerance.

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