Synthesis and Electromagnetic Properties of Hollow Ceramic Microspheres
The hollow ceramic microspheres were prepared by Self-reactive flame spraying method. The structural characteristics and morphology properties of the composite powders were obtained by XRD and SEM. The results show that the obtained particles are hollow ceramic microspheres. The average particle size is about 30μm. An analytical method for the determination of electromagnetic parameters (ε, μ) of materials under test is presented by the analysis of normalized general matrix of equivalent network of coaxial line filled with samples. The analysis of vector network analyzer show that reflectance of hollow composite microspheres could well absorb microwaves in 2-18 GHz. The reflection loss is less than -10dB in the range of 12.4 tol5.2GHz while the minimum reflection loss is -18.5dB at l3.6GHz.
Baocai Xu Jianjiang Wang Rongxia Duan Xingjian Huo
Mechanical and Engineering Collage, Shijiazhuang 050003, China
国际会议
长沙
英文
260-263
2011-06-30（万方平台首次上网日期，不代表论文的发表时间）