Feedback topology in oscillator?

[dalarev]

Clapp oscillator with the following schematic, DC bias included:

**broken link removed**

...where, I believe, I'm missing an RF choke inductor to ground on the source lead.


My question is regarding the feedback topology:

**broken link removed**

Since my output is taken from the source lead, does that make this feedback topology a shunt-shunt?


My goal is to obtain the gain/phase of the amplifier output and the gain/phase of the feedback network output.

Any tips on how to approach this feedback schematic?

 

[LvW]

A similar problem was discussed some days ago in this forum.
See my answer regarding redrawing of the circuit.

 

[dalarev]

I followed that guide. I redesigned the circuit and obtained a Common-Source configuration, but then I tried simulating a 10MHz (I think) example that is shown in the article and I couldn't get it to work.

The literature has an example oscillator with all the parameter values given, but I couldn't get it to run. Any other suggestions?