Is there anything to correct?
Gave information about a detailed study using equations in wireless electricity transmission
I found a good paper that explains how this works, has a working model & the equations you need.
You need a high frequency oscillator to gate the mosfet tuned to the resonating Freq. of the transmission coil
Can you help me design a better design?
Yea, sure… range would be very limited
You could use a 555 IC as oscillator…That would be cheap…