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A two-layer dielectric absorber covering a wide frequency range

  • Fa Luo
  • , Dong mei Zhu
  • , Wan cheng Zhou
  • Northwestern Polytechnical University Xian

科研成果: 期刊稿件文章同行评审

42 引用 (Scopus)

摘要

A two-layer dielectric absorber for use as high temperature radar wave-absorbing material was developed by hot-pressing nanometer SiC and LAS glass-ceramic. The complex permittivity of the hot-pressed LAS glass-ceramic and SiC/LAS composite was investigated at 8.2-12.4 GHz. Results show that the real and imaginary parts of the permittivities of the SiC/LAS composites greatly increase as the content of the nanometer SiC powders increases. Based on the test results, a two-layer ceramic absorber, composed of LAS layer and SiC/LAS layer, covering a wide frequency range was designed and prepared. Its reflectivity at 8.2-12.4 GHz is less than -6 dB.

源语言英语
页(从-至)197-200
页数4
期刊Ceramics International
33
2
DOI
出版状态已出版 - 3月 2007

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