中文摘要：

该文介绍了计算多层球等效介电常数的相干位法,与传统的混合表象假设波以背景媒质的波数传播不同,该方法预设混合物等效介电常数为新模型下背景媒质的介电常数,并对新模型中多层球的介电常数做相应的修改,通过简单的代数变换,自然地在新模型的背景媒质中引入了相干波,该方法避免了复杂的数学运算,建立的模型更接近真实的情况,在多层球占空比较大的情况下仍然适用,最终得到的结果物理意义明确。

英文摘要：

This paper introduces a new method of coherent potential to calculate the effective permittivity of layered dielectric spheres,which is different from the mixed image,here we set effective permittivity to be the permittivity of background media in advance,then use a simple mathematic transformation which can introduce the coherent potential easily.There is no too much mathematic calculation in our method,but the result was good.