Time Domain Solver Problem Handling
Maximum number of pulse widths simulated, solver stopped. /
Maximum simulation time reached, solver stopped. Please note that the steady state criterion [energy / port signal / custom] could not have been satisfied. /
Maximum excitation signal time simulated, solver finished successfully.
完成最大數量的脈沖寬度仿真，求解器停止工作。
達到最大仿真時間，求解器停止工作，請注意穩態判據【能量、端口信號，自定義】未滿足。
完成最大激勵信號的時間仿真，求解器停止。
時域求解器使用時域脈沖作為激勵信號，有如下條件，則求解器停止工作：
The remaining energy in the calculation domain as well as the port signals have decreased to the desired steady state value and all additional customized stop rules are satisfied.
計算域的剩余能量以及端口信號均下降到期望的穩態值，滿足所有附加的定制停止規則。
The steady state value is specified on the Time Domain Solver Parameters page in the Accuracy field. The customized stop rules (for S-parameter, probe or radiated power convergence) are specified in the Custom stop criteria frame on the Special Time Domain Solver Parameters page.
Please note that in any case the steady state energy, port signal and all additional custom checks are only active after the simulation duration has exceeded the exciting pulse length.
穩態值是在“Time Domain Solver Parameters（時域求解器參數）”頁面的“Accuracy”字段中指定的。
在“Special Time Domain Solver Parameters”頁面的“Custom ”框架中指定自定義停止規則(用於s參數、探針或輻射功率收斂)。
請注意，在所有的情況下，穩態能量、端口信號和所有額外的自定義檢查只有在模擬持續時間超過激勵脈沖長度后才有效。
The simulation time reaches the maximum solver duration, either defined as Number of pulses, Time or Propagation distance on the Steady State tab on the Special Time Domain Solver Parameters page.
仿真時間達到了求解器持續時間的最大值，在Special Time Domain Solver Parameters頁面的 Steady State選項卡上Number of pulses,、Time or Propagation或Propagation distance的某一項。
The third condition is given by the defined length of the excitation signal itself:
In case that the simulation is excited with a signal defined via time parameters, e.g. pulses, user defined signals, etc. (in contrast to the Gaussian or Impulse signals, which are defined via frequency parameters), then the Number of pulses setting on the Steady State tab is ignored.
Instead the signal length itself determines the overall simulation time without performing any steady state energy check, as long as not Time or Propagation distance is selected and defined as the stop criteria. Therefore these two settings are recommended when working with pulses or similar signals.
第三個條件是由激勵信號本身的定義長度決定的。
如果模擬是通過時間參數定義的信號激發的，例如脈沖、用戶定義的信號等（與高斯或脈沖信號相反，后者是通過頻率參數定義的），那么Steady State 選項卡上的脈沖數設置就被忽略了。
相反，只要不選擇時間或傳播距離作為停止標准，信號長度本身就決定了整個模擬時間，而不進行任何穩態能量檢查。因此，在處理脈沖或類似信號時，建議使用這兩個設置。
The warning appears when the latter condition was satisfied first before the accuracy level has been reached and the customized stop rules, if applicable, are satisfied. This means the energy level remaining in the structure could still be bigger than the specified steady state value or any of the custom rules could not have been matched. Usually this is the case for resonating (energy stays inside the structure for a long time) or large structures (it takes a long time for a pulse to penetrate through the structure). The extra energy would appear as a truncation error, which causes some ripples in the S-parameter curves.
如果在達到准確度水平和滿足自定義停止規則（如果適用）之前，首先滿足了后一個條件，則會出現警告。這意味着結構中剩余的能量水平可能仍然大於指定的穩態值，或者任何自定義規則都沒有得到滿足。通常情況下，共振（能量在結構內停留很長時間）或大型結構（脈沖需要很長時間才能穿透結構）會出現這種情況。額外的能量會以截斷誤差的形式出現，這導致S參數曲線出現一些波紋。
Recommended solutions are the following:
建議的解決方案如下：
For non-resonating structures, the maximum solver duration setting can be adjusted, with the appropriate choice of defining number of pulses or a time or propagation distance setting.
對於非諧振結構，可以設置最大求解器持續時間，適當選擇定義脈沖數或時間或傳播距離設置。
For resonating structures a much better approach would be to activate the Auto-regressive Filter on the AR Filter tab on the Special Time Domain Solver Parameter page, which allows to shorten the simulation time and in addition to avoid the truncation error.
對於諧振結構，更好的方法是在Special Time Domain Solver Parameter頁的AR Filter 標簽上激活Auto-regressive Filter，這樣可以縮短模擬時間，此外還可以避免截斷誤差。