Selecting the right component values for comb generator.

[Sonnyx1]

Helo,

I am working on making a comb generator with around 2MHz base frequency. I have seen some diagrams online for higher base frequency comb generators examples that are very similar to each other so I want to try using them as a base.

So my question is, how do I go about selection the right values of the components if I want to use a oscilator close to 2MHz? Is there also a way to simulate them to see how the output signal looks like before going and making it?

I am grateful for any help.

Sources of the two pictures:
Top: https://www.edaboard.com/threads/ha...-with-fundamental-frequency-of-10-mhz.200668/
Bottom: https://g0mrf.com/source2.htm

 

[tepalia02]

You can try Genesys. It is an oscillator synthesis software.

 

[biff44]

that does not look like a comb generator. that looks like a 3rd, 5th harmonic generator
i would replace those two back to back diodes with a series inductor, and a step recovery diode. that would generate both even and odd harmonics. look up the fourier transform of a narrow pulse in time

Or, since this is the modern world, use super high speed digital gates that generate a single pulse of very narrow pulsewidth, say 1 nanosecond.

since you are running the input clock at 2 Mhz, which is almost like DC, i would have to think about the maximum pulse width to have a lot of comb teeth even heights.