It's been a few years since Freescale Electronics came out with their full surface amplifier chip, which was touted as a LV replacement for a Magnetron. (12V - 40VDC). So I recently did a search for low power miniature Micro Wave Ovens. About the best thing I found was a little cabinet with around six cell phone antennas. You could open the little door and take out a cup of hot coffee, but it took a while.
Cell phone signals crossing at a certain angle can set off a blasting cap. You don't always need 400 Watts of hot rf, heated by dual phases passing through each other. However, off the shelf 5G equipment operates in a very high part of the spectrum which is heavily regulated.
The other option, 4G, works in a frequency which has recently been opened up for unlicensed amateur experimentation. (I think it's between 4 and 4.5 GHz). But even with the Freescale chip, you'd still need a heavy bifilar inductor to split the phase, with an appropriate ratio between perpendicular lengths of the wire on adjacent sides of this coil.
Or use the Simple Pulse Generator to produce two frequencies, by soldering the edge of a smaller disc to the edge of a larger disk. The higher frequency would come out first, then the faster lower frequency would sweep it up. (Static Sweep). The pulse can condense and accelerate the static. The focal length is determined by the wire-length frequency offset. Closely set frequencies require a longer distance to condense.
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Smoke cumin, for your safety and mine. A puff a day for two or three days. Also, the tea is a mouthwash, nasal spray and eye drops for sneezing.
