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Radio Power Transmission Apparatus and Radio Power Transmission System

  • US 20150200568A1
  • Filed: 06/26/2012
  • Published: 07/16/2015
  • Est. Priority Date: 06/26/2012
  • Status: Active Grant
First Claim
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1. A radio power transmission apparatus comprising:

  • a transmitter having a power transmitting antenna for transmitting electromagnetic waves and a power transmitting circuit; and

    a receiver having a power receiving antenna for receiving electromagnetic waves and a power receiving circuit, wherein;

    on the basis of power reflected to the power transmitting antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit in order to control the imaginary part of power of the electromagnetic waves to be transmitted; and

    on the basis of a value of power transmitted to the transmitter by using electromagnetic waves of power transmission used by the receiver to transmit a value of power received by the receiver through the power receiving antenna, the power transmitting circuit executes control to change the circuit reactance of the power transmitting circuit or the characteristic impedance of the power transmitting circuit in order to control the real part of power of the electromagnetic waves to be transmitted.

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