Method and apparatus for capacitive wireless power transmission

A system for capacitive wireless power transmission comprising:

• a. an adjustable RF power source configured for varying an RF frequency thereof;
• said adjustable RF power source having an RF power amplifier;
• b. a power transmission channel configured for capacitive wireless power transmission further comprising transmitting (TX) and receiving (RX) portions;
• said TX and RX portions comprise transmitting and receiving metallic patch electrodes, respectively, facing each other via an air gap;
• c. a feedback communication channel configured for providing a feedback signal for matching up an output impedance of the RF power source to impedance instantly presented by the power transmission channel;
• said feedback communication channel further comprising transmitting and receiving portions FTX and FRX, respectively;
• d. a processor configured for varying said RF frequency of said power transmission channel;
• wherein each of said TX and RX portions further comprises TX and RX ground planes disposed behind said TX and RX electrodes, respectively;
• said processor is configured for selecting an RF frequency to be generated by said power source corresponding to minimal power transmission losses by means of compensation of a capacitive reactance formed between said TX and RX electrodes by means of a sum of inductive reactance formed by said TX electrode and TX ground plane, and the reactance formed by said RX electrode and the RX ground plane.