【摘要】 基于宏观电磁理论，运用平均能量法推导球形金属颗粒填充复合材料等效介电常数的计算公式，并与矩量法和平均场法进行比较，验证平均能量法计算公式的有效性.计算结果表明：当填充相体积比较小(≤10%)时，三种算法计算结果较为接近；当填充相体积比小于等于30%时，平均场法和矩量法计算结果基本一致；当填充相体积比接近50%时，平均能量法与矩量法计算结果较为接近.更多还原

【Abstract】 Based on the macroscopic electromagnetic theory, the theoretical formula of effective permittivity of spherical metal particle filled composites was deduced by means of the average energy method, and compared with the theoretical formula of the average energy method with the calculation results of the average field method and the moment method to verify the correctness and effectiveness of the formula of the average energy method.The calculation results show that when the volume ratio of the filling item is small, the calculation results of the three algorithms are basically the same.When the volume ratio of the filling term is less than or equal to 30%,the results of the average field method and the moment method are basically the same.When the volume ratio of the filling term approaches 50%,the calculated results of the average energy method and the moment method are close to each other.更多还原