I have a project where I would like to power an electric motor wirelessly using RF energy at close distance using the 2.45Ghz spectrum (Microwave Magnatron) Yes I know there are better ways to do this and It may seem a little mad but I am keen to use this method for reasons that I shall not discuss to keep things short.
Although I know little about this field I am perfectly aware of the dangers of Magnatrons, the entire experiment will be conducted in a safe fully shielded environment.
Now please assume that I know nothing about electronics, because its really not my field.
Now, I understand that this should technically be possible (In my mind) but may be difficult due to that fact that the motor and electronics will be exposed to large amounts of RF energy at close distance which is generally a big no no. I would assume with my basic understanding of electronics that they could shielded somewhat by encasing them in a Faraday cage.
My setup would look something like so.
Input 2.45Ghz 1000W > 1/4 wave Dipole Antenna > Bridge rectifier > Low pass filter > Regulator > Load
Now my questions are.
- Can this actually in practice be achieved or am totally mad?
- Could a small 1W brushed motor be powered with a 1000W Magnatron at 50-100cm, and if so, could it effectively be shielded? The motor will be driving a small plastic prop.
- Could the antenna be designed so poorly that it only captured 1-2watts of power?
- If not, then could the excess of power be dumped into a resistive element?
- What diodes would I need to perform rectification at this kind of frequency?