CST MWS AR-Filter的求解结果疑问

05-08

我用AR-Filter求解一个强谐振结构的S参数，AR-Filter的求解记录如下，这里面energy error是0.00e+00，我先问下这个是否正常?这真的是误差为0，还是求解过程出现问题了?谢谢大家！
===================================================================
Analysis 1 of 1 for stimulation port 1, mode 1
===================================================================
First time step       : 1.184708e-007 s
Skip time steps       : 10
Max. frequency        : 1.140000e+002 MHz
Max. order of filter : 40
Relative Window length: 1.000000e+000
Input signal samples : 7896
Input signal length   : 3.525991e-007 s
-------------------------------------------------------------------------------
step | window range              | rel. wnd. | filter | energy    | pulses to
       |     s                              | length    | order | error     | calculate
------|---------------------------|-----------|--------|-----------|-----------
1   | 1.2191e-007 - 2.3801e-007 | 1.00     | 40    | 0.00e+000 | 2.01e+000
2   | 1.2236e-007 - 2.3846e-007 | 1.00     | 40    | 0.00e+000 | 2.01e+000
3   | 1.2280e-007 - 2.3891e-007 | 1.00     | 40    | 0.00e+000 | 2.02e+000
4   | 1.2325e-007 - 2.3935e-007 | 1.00     | 40    | 0.00e+000 | 2.02e+000
5   | 1.2370e-007 - 2.3980e-007 | 1.00     | 40    | 0.00e+000 | 2.02e+000
6   | 1.2414e-007 - 2.4025e-007 | 1.00     | 40    | 0.00e+000 | 2.03e+000
-------------------------------------------------------------------------------
filter step 1 was chosen for further calculations.
-------------------------------------------------------------------------------
===========================================================
Stimulation at port 1 (mode 1)
Average deviation in s-parameter energy balance: 5.467625e-004
Maximum deviation in s-parameter energy balance: 2.485385e-001
===========================================================
===================================================================
Maximum deviation in s-parameter energy balance = 0.248539
(regarding all successful filter runs)
===================================================================

图呢?发上来看看

请见附件，谢谢！

描述:AR的S11

图片:1.jpg

描述:AR的smith图

图片:2.jpg

描述:信号

图片:3.jpg

描述:AR的engery

图片:4.jpg

描述:直接求解的S11

图片:5.jpg