无机非金属材料毫米波加热特性理论分析

Theoretical analysis of inorganic non-metallic material properties on millimeter wave heating

毫米波加热是无线能量传输的一种重要方式,通过将能源与动力分离,可以大大降低飞行器等动力系统自重,降低系统复杂性,并有效提高载荷率。对无机非金属材料在高能量毫米波加热下的微观特性进行研究,从带电粒子在电磁场中的运动出发获取材料介电性能的微观反映,分析材料各项特性对介电损耗因子的影响,并利用双层介质平板模型探讨毫米波加热的能量吸收效率。研究发现,高能量毫米波加热与常规微波加热本质上相同,优势在于目标结构紧凑、能量密度高;温度对材料介电性质的影响较大,在低温段和高温段能量吸收系数较低。

Millimeter wave heating is an important way of wireless energy transmission. Microcosmic characteristic of inorganic non-metallic material on millimeter wave heating is researched. Using the function of electrified particle movement in electromagnetic field, material permittivity damping performed with inner characteristics is put forward. With the study on energy absorbed efficiency using a double plat module, the result shows that temperature great affect material permittivity damping. The energy efficiency is much small under low or high temperature.