I am 17, and I am new to electronics, and I've learned everything online and expect to continue to do so with all the resources. I have dug around and can't find concise answers on this question ...
How exactly are radio waves propagated, and how can I build a simple circuit pair from which one can send the radio waves and the other can intercept them?
I have read different things in different sources, and I'll link them all here:
The aforementioned site claims that radio waves are essentially EM (knew that), but mentions photons. Photons are the essence of all EM, but in a simple circuit there is just current flows by the battery. How would I produce photons from a one-way current?
That site above claims that you can "make a radio wave" simply by having an electric field, which is an electric circuit. So, by that logic, any electric circuit is producing radio waves as is? In that case, a homopolar motor would technically produce radio waves as well(it is a complete circuit, yes)? So then the radio waves will propagate in a pattern depending on how many times the circuit goes on and off, so I could encode data by patterns just by removing and placing the battery back to the circuit? I don't get it. Can anyone clarify that article more?
What I wanna do is make two simple circuits out of copper, and produce a radio wave that the other circuit will intercept and use an AND-gate to turn on an LED wirelessly.
However, I do not understand exactly how radio waves are propagated!