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Magnetron output power and design? Answered

So I've been looking into the design and operating principles of cavity magnetrons and I have some questions that I can't find answers to.
What exactly determines the output power of a magnetron?
Is it just a matter of how much voltage you put in and if so, is there a limit to how much voltage can be put in? If there is a limit, what properties of the magnetron set the limit?
If it's not that, than does the output power have to do with the number of resonator cavities the magnetron has?
Sorry if this is a lot of questions, and if I'm misunderstanding something about all this (which is more than likely) or what I'm asking is unclear, please let me know.



Best Answer 3 years ago

1. Input power.

2. limit is physical, i.e. what you can push in without it arcing.

3. Limits set by physical size of cavities, distance from cathode.

4. resonator cavities set the frequency.

They are very complex things, if you anticipating making one good luck!.

If you want to push up power there will be limits set by the physical design. Typical 10 cm radar magnetrons are running at around 50Kv on the cathode.