微波EDA 电磁仿真软件应用

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CST是求解maxwell方程的积分形式，而不是是微分形式，不是基于“时域有限差分”，参见联机帮助。

Background of the Simulation Method
The Finite Integration Technique (FIT)

CST STUDIO SUITE is a general-purpose electromagnetic simulator based on the Finite Integration Technique (FIT), first proposed by Weiland in 1976/1977 [1]. This numerical method provides a universal spatial discretization scheme applicable to various electromagnetic problems ranging from static field calculations to high frequency applications in time or frequency domain. In the following section the main aspects of this procedure are explained and extended to specialized forms concerning the different solver types.

Unlike most numerical methods, FIT discretizes the following integral form of Maxwell’s equations rather than the differential one: