如何理解和使用校准中的负电感值？

嗨，在某些校准标准中，校准套件具有负电感系数。
如果它只是系数集的某些部分，如L1，L2等，在短期内不难理解。
但是，对于某些晶圆上校准标准，前面只有一个负电感，比方说LOAD标准。
在这一点上，由于这些原因，事情变得很奇怪：1。通常情况下，串联电感或并联电容可视为一条传输线，分别具有无限/ 0特性阻抗。
但是，具有负值的电感器，我们应该将其视为串联负电感还是分流正电容？
2.此电感/电容转换仅在某个特定频率下工作。
我们应该以哪种频率进行这样的翻译？
在实际应用中，如果将负电感视为LOAD标准的系数，将其转换为负延迟时间是否正确？
否则，我只能考虑将其转换为正值，但在不同频率下不同，这意味着产生分散效应。
我不确定这里的最佳做法是什么，似乎我们的校准存在一些问题。
所以我想让这里的基本理论更加清晰。
在此先感谢您的回复！
此致，NL



     以下为原文

  Hi,

In some calibration standards the cal kits have negative inductance coefficients. It is not hard to understand if it is only some parts of coefficient set, like L1, L2 etc, in the short stand. However, for some on-wafer calibration standard, there is only one negative inductance is placed in front of, let's say, LOAD standard. At this point, things become strange, for these reason in my point of view:

1. Normally a series inductor or a shunt capacitor can be seen as a piece of transmission line, with infinite/0 characteristic impedance respectively. However, an inductor with negative value, should we consider it as a series negative inductor, or a shunt positive capacitor?

2. This inductor/capacitor translation only works at some specific frequency. At which frequency should we perform such a translation?

In real application, if a negative inductance is considered as the coefficient of a LOAD standard, is it correct to translate it to a negative delay time? Otherwise, I could only consider translate it to a positive value, but different at different frequency, which is implying a dispersive effect.

I am not sure what is the best practice here and it seems there is some problem with our calibration. So I would like to make the fundamental theory here clearer. Thanks in advance for any reply!

Regards,

NL