Generate Microwaves Using Heat: Does it Exist?

AI Thread Summary
A device that generates microwaves using heat as a power source does not currently exist. The discussion highlights the potential of using steam to generate electricity, which could then power a microwave generator circuit. However, the efficiency of converting heat directly into microwaves is low, as hot bodies primarily emit infrared radiation. The proposed method involves converting heat to steam, using a turbine to generate electricity, and then employing a magnetron to produce microwaves. Overall, while the concept is theoretically feasible, practical implementations remain absent.
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Does a device exist which can generate microwaves using heat (e.g. hot air) as a power source?
 
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You could use steam (and a generator) to make a current, which, when fed into a microwave generator circuit will give you an output at the desired frequency.

Don't know of an existing device though.
 
Last edited:
Thank you for the help
 
Hot bodies tend to radiate energy in the infrared range unfortunately :(
 
mezarashi said:
Hot bodies tend to radiate energy in the infrared range unfortunately :(
Some teeny fraction of the emitted power will be in the microwave range, but if you depended on that you'd have lousy efficiency.
 
Heat + Water = Steam
Steam + Turbine = Electricity
Electricty + Magnetron = Microwave

Heat => Microwave

:smile:
 

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