• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2025, Vol. 61 ›› Issue (19): 420-429.doi: 10.3901/JME.2025.19.420

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Controllable Structure Design and 3D Printing of Broadband High-efficiency Wave-transparent Metamaterials

REN Aoqi1,2, LIANG Qingxuan1,2, ZHANG Tongtong1,2, BAI Jincang1,2, LI Dichen1,2   

  1. 1. State Key Laboratory for Manufacturing System Engineering, Xi'an Jiaotong University, Xi'an 710049;
    2. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049
  • Received:2024-10-16 Revised:2025-04-03 Published:2025-11-24

Abstract: As a multi-functional composite structure that integrates wave transmission, load bearing and temperature resistance, wave-transmitting material and structure play an important role in radar radome, stealth skin and 5G communication components. A method for the preparation of glass fiber reinforced thermoplastic polyether ether ketone (PEEK) polymer wave-permeable 3D printing filament is proposed. The mechanical and wave-permeable properties of the PEEK-based filament are analyzed, and the effects of varying glass fiber content on these properties are investigated. Optimal material processing parameters are determined to achieve high-efficiency wave-permeable performance. Leveraging the advantages of fused deposition modeling 3D printing, a honeycomb sandwich wave-transmitting metamaterial structure is designed and fabricated for composite materials. The electromagnetic test results indicate that the wave transmittance of the designed metamaterial achieves 94.36% and 94.62% in the frequency range of 2-18 GHz in TE and TM mode, respectively. The method of high efficiency transparent printing wire controllable manufacturing and transparent metamaterial controllable design and manufacturing provide effective support for the realization of stealth radome and stealth skin.

Key words: broadband, wave- transparent, metamaterial, controllable design, 3D printing

CLC Number: