Re: [Qucs-help] RFEDD

[Stefan J. <st...@gr...>]

Am Di, 11.05.2010, 22:51 schrieb Manley Head:

> Hello Stefan;

Hi!

> It's me again.  I was trying to see how the new RFEDD works and I am
> having trouble.
> I was trying to simulate a simple RC lowpass using Laplace notation,
> i.e., 1/(1+R*C*s) but
> I can't get it to work.  I am using the 2port RFEDD.
> Questions;
> 1. Which type of parameter should I use, Y,Z,... etc.?

It is your choice.

> 2. How are the parameter values arranged, i.e., which are 1,which are
> 0, and where does the formula go?

Calculate it yourself.

> 3. Do I have to define the Laplace variable s and if so where?

The name is "S".

> 4. Does the R and C values in the RFEDD get passed from an external
> equation block?

As you like.

> 5. Where can I find a detailed and thorough explanation of this.

> 6. Can I simulate this in the time domain?

No. Not (yet).

> 7.  My ultimate objective (perhaps too much) is to set up a PLL using
> EDD's and then
> simulate it in the time domain to determine it's phase lock
> acquisition behavior.
> Do you think this is possible?

Maybe...

I attached you a setup using RFEDD for the simple low-pass which you
described...

Hope this helps, Stefan.