relative permittivity

Relative dielectric permittivity and loss angle tangent among them are the two of most important indexes.

相对介电常数和介质损耗角正切是其中的两个重要的性能指标.

By analyzing the gap width of radiated patch, ground plane and the thickness as well as relative permittivity of dielectric substrate, we carefully research these factors.

通过分析开缝微带贴片天线辐射贴片缝隙宽度、接地板缝隙宽度、介质基板厚度以及介质基板相对介电常数，仔细研究这些因素对开缝微带贴片天线的影响。

The relative permittivity and permeability expressions are derived, and the effectiveness of material parameter and the properties of electromagnetic device are validated by full-wave simulation using COMSOL software.

导出了其相应介电常数和磁导率的表达式，并利用COMSOL软件对材料参数的有效性及电磁器件的性能进行了全波仿真验证。