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Design of a novel broadband low-profile multilayer composite absorber
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Ruodi LI, Guobin WAN*, Zihan WEI, Jiarong JIA, Mengyao WANG
Chinese Journal of Ship Research | 2026, 21(2) : 278 - 284
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Chinese Journal of Ship Research | 2026, 21(2): 278-284
• Ship Design and Performance •
Design of a novel broadband low-profile multilayer composite absorber
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Ruodi LI, Guobin WAN*, Zihan WEI, Jiarong JIA, Mengyao WANG
Affiliations
  • School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China
Published: 2026-04-30 doi: 10.19693/j.issn.1673-3185.04344
Outline
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Objective

To overcome the limitations of conventional wave-absorbing structures, a novel broadband, low-profile multilayer composite absorber was designed.

Method

The proposed design integrates square loop resistive film units to significantly broaden the operational bandwidth and incorporates miniaturized conductor units based on lumped inductance loading. Structural parameters were further optimized to achieve broadband, low-profile wave-absorption, effectively lowering the minimum operational frequency.

Results

Simulation results show that the developed composite absorber achieves over 90% electromagnetic wave absorption across the frequency range of 3.22 to 14.63 GHz, with a relative bandwidth of 127.8% and a low profile height of just 0.068λL.

Conclusion

The operational mechanism of the absorber is analyzed using an equivalent circuit model, and potential improvements are discussed. This design offers valuable insights and a solid reference for the development of broadband, low-profile absorbers. Future work will focus on replacing lumped inductors with metal meander-line structures to reduce processing complexity and costs.

absorber  /  broadband  /  low-profile  /  resistive film  /  electromagnetic wave absorption  /  radar absorbing materials
Ruodi LI, Guobin WAN, Zihan WEI, Jiarong JIA, Mengyao WANG. Design of a novel broadband low-profile multilayer composite absorber[J]. Chinese Journal of Ship Research, 2026 , 21 (2) : 278 -284 . DOI: 10.19693/j.issn.1673-3185.04344
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Year 2026 volume 21 Issue 2
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Article Info
doi: 10.19693/j.issn.1673-3185.04344
  • Receive Date：2024-12-31
  • Online Date：2026-05-20
  • Published：2026-04-30
Article Data
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History
  • Received：2024-12-31
  • Revised：2025-04-07
Affiliations
    School of Electronics and Information, Northwestern Polytechnical University, Xi'an 710072, China
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