The current distribution, radiation pattern and input admittance are calculated for the differen.
先用矩量法分析了直立放置于接地板上和平行放置于接地板上的Koch分形线天线的电磁特性，并重点计算了平行放置于接地板上Koch分形天线在不同分形阶数和放置高度情况下所对应的天线上的电流分布、辐射方向图和输入导纳。
The optical admittance approach to design antireflection coatings of superluminescent diodes is described and effective refractive index is introduced.
分析了设计超辐射发光二极管抗反射膜的光导纳法,介绍了有效折射率的概念。