[讨论][求助]怎么自定义激励源？

我需要定义一个方 .. <uKm%~xi<  
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实在抱歉，这个要使用 WAVEFORM 里面的user defined.不过本人也没用过，在手册里面也没提到，还请高手出手了。 m4"N+_j  
    请问为什么要使用方波呢?

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我看到有一篇研究关于平行微带线的串扰文章中，激励源加的是方波。在方波的上升和下降期，受干扰的线上会产生一个很窄的方波。所以我想加个方波试试看。user defined只能从外部导入已经自定义的波形文件，现在我就是不知道怎么编辑.src的文件。

user defined从外部导入已经自定义的波形文件，强行定义一个后缀为.src的文件，用记事本可以打开，将matlab等生成的数据拷贝到.src文件中，再用USER DEFINED 进行导入即可 7}be>(  

我也想知道

波形文件需要matlab等生成吗

能说清楚点吗，我也想知道

我也是为此目的而注册的！说清楚点

英文版的使用手册看的头痛！

User Defined.Pressing this option will open a menu asking for the input filename with an extension n`q2s'Pc  
.src. The file format for a user-defined waveform is as follows: the first line must be bAf,aV/C&|  
an integer, which is the number of time steps in the waveform; additional time steps will g\U/&.}DN  
be zero-padded. The format of the rest of the file depends upon whether a voltage mwh{"FL(  
source or incident plane wave calculation is being made. For a voltage source excitation hd B |#t  
each following line, one for each time step, contains two floating-point numbers e,HMwD  
representing the voltage and its time derivative at the feed at that time step. For an dpwD8Q< U  
incident plane wave calculation, each following line, one for each time step, contains two 845 W>B  
floating-point numbers. The first number on each line is the electric field value, in $I@GUtzjp  
Volts/meter, at each time step, and the second is the time derivative of the electric field "PMQyzl  
of the incident plane wave.