ADS : How to simulate time dependent Inductance and capacitance

[Lynmz]

我想在ADS中设计一个可以随时间变化的电容器，我已经使用DAC组件设计了它，但是会有警告，我该怎么办？

[Google translation by moderator]
I want to design a capacitor in ADS that can change with time, I have designed it using DAC component, but there is a warning, what should I do?

 

[PlanarMetamaterials]

I think the typical way to do this is to have a switched bank of capacitors, with the switches being activated at various times. I'm not sure if a continuous time-dependent reactance is possible in ADS.

 

[Lynmz]

我认为这样做的典型方法是有一个开关电容器组，开关在不同的时间被激活。我不确定在 ADS 中是否可能存在连续的瞬态电抗。

Do you know how to set such a time switch in ADS?

 

[dick_freebird]

Another option is to use a poly controlled source to
create a variable gain using the a*b term. Sense the
capacitor current with a V=0 source and add parallel
current to a "unit cap"; sense inductor voltage and
use a ccvs to add voltage to the stack. The "b" term
can be fixed or real-time-varying.

 

[Lynmz]

Another option is to use a poly controlled source to
create a variable gain using the a*b term. Sense the
capacitor current with a V=0 source and add parallel
current to a "unit cap"; sense inductor voltage and
use a ccvs to add voltage to the stack. The "b" term
can be fixed or real-time-varying.

Thank you very much for your reply, but I am a newbie and I don’t know how to build the circuit you described. Could you please demonstrate it to me? Thank you very much.