Apparatus and method for wirelessly transmitting and receiving energy and data

• US 8,478,212 B2
• Filed: 11/09/2011
• Issued: 07/02/2013
• Est. Priority Date: 12/17/2010
• Status: Active Grant

• Current Assignee: Electronics and Telecommunications Research Institute
• Original Assignee: Electronics and Telecommunications Research Institute
• Inventors: Moon, Jung Ick, Cho, In Kui, Kim, Seong Min, Yun, Je Hoon, Byun, Woo Jin, Kim, Kwang Seon, Kim, Bong Su, Kang, Min Soo
• Primary Examiner(s): LE, NHAN T
• Application Number:
  US13/292,602
• Publication Number:
  US 20120157021A1
• Time in Patent Office: 601 Days
• Field of Search: 455/118, 455/127.1, 455/127.2, 455/550.1, 375/295
• US Class Current: 455/118
• CPC Class Codes: H01Q 1/248 provided with an AC/DC converting device, e.g. rectennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H04B 5/79 for data transfer in combination with power transfer

Abstract

Disclosed is an apparatus for wirelessly transmitting and receiving energy and data including: a signal generator generating a first frequency signal for power transmission; a first matching circuit matching input/output impedance upon receiving the first frequency signal generated by the signal generator; an oscillator outputting a second frequency signal, a carrier frequency, by using the first frequency signal, generated by the signal generator, as a reference frequency; a mixer modulating a data signal output from a communication module by using the second frequency signal; a second matching circuit matching input/output impedance upon receiving a modulated signal by using the second frequency signal; a resonator resonating an output signal from the first matching circuit to a reception side apparatus; and a radiator radiating an output signal from the second matching circuit to the reception side apparatus.

Claims

1. An apparatus for wirelessly transmitting energy and data, comprising:

a signal generator to generate a first frequency signal for power transmission;

a first matching circuit to match input/output impedance for the first frequency signal upon receiving the first frequency signal generated by the signal generator;

an oscillator to output a second frequency signal, a carrier frequency, by using the first frequency signal, generated by the signal generator, as a reference frequency;

a mixer to modulate a data signal output from a communication module by using the second frequency signal;

a second matching circuit to match input/output impedance for the modulated signal upon receiving the modulated signal by using the second frequency signal;

a resonator to resonate an output signal from the first matching circuit to a reception side apparatus; and

a radiator to radiate an output signal from the second matching circuit to the reception side apparatus.

2. The apparatus of claim 1, further comprising a power amplifier to receive the first frequency signal generated by the signal generator, amplify the received first frequency signal to have a desired output level, and provide the amplified signal to the first matching circuit.

3. The apparatus of claim 1, further comprising a signal amplifier to amplify the signal modulated by using the second frequency signal and provide the amplified signal to the second matching circuit.

4. A method for wirelessly transmitting energy and data, comprising:

a signal generation operation of generating a first frequency signal for power transmission;

a first matching operation of matching input/output impedance upon receiving the first frequency signal generated in the signal generation operation;

an oscillation operation of outputting a second frequency signal, a carrier frequency, by using the first frequency signal, generated in the signal generation operation, as a reference frequency;

a modulation operation of modulating a data signal output from a communication module by using the second frequency signal;

a second matching operation of matching input/output impedance upon receiving the signal modulated by using the second frequency signal;

a resonation operation of resonating a signal output from the first matching operation to a reception side apparatus; and

a radiation operation of radiating a signal output from the second matching operation to the reception side apparatus.

5. The method of claim 4, further comprising a power amplification operation of receiving the first frequency signal generated in the signal generation operation and amplifying the received first frequency signal to have a desired output level, after the signal generation operation.

6. The method of claim 4, further comprising a signal amplification operation of amplifying the data signal modulated by using the second frequency signal, after the modulation operation.

7. An apparatus for wirelessly transmitting energy and data, comprising:

a signal generator to generate a first frequency signal for power transmission;

a first matching circuit to match input/output impedance for the first frequency signal upon receiving the first frequency signal generated by the signal generator;

a frequency multiplier to multiply the first frequency signal generated by the signal generator into a second frequency signal of an integer multiple;

a mixer to modulate a data signal output from a communication module by using the second frequency signal;

a second matching circuit to match input/output impedance for the modulated signal upon receiving the modulated signal by using the second frequency signal;

a resonator to resonate an output signal from the first matching circuit to a reception side apparatus; and

a radiator to radiate an output signal from the second matching circuit to the reception side apparatus.

8. The apparatus of claim 7, wherein the resonator and the radiator are integrally configured.

9. A method for wirelessly transmitting energy and data, comprising:

a signal generation operation of generating a first frequency signal for power transmission;

a first matching operation of matching input/output impedance upon receiving the first frequency signal generated in the signal generation operation;

a frequency multiplication operation of multiplying the first frequency signal generated in the signal generation operation into a second frequency signal of an integer multiple;

a modulation operation of modulating a data signal output from a communication module by using the second frequency signal;

a second matching operation of matching input/output impedance upon receiving the signal modulated by using the second frequency signal; and

a resonation and radiation operation of resonating and radiating the signals output from the first and second matching operations to a reception side apparatus, respectively.