Self-resonant apparatus for wireless power transmission system

Patent metadata

Field	Value
Publication number	US-9330836-B2
Application number	US-201313738058-A
Country	US
Kind code	B2
Filing date	Jan 10, 2013
Priority date	Jan 10, 2012
Publication date	May 3, 2016
Grant date	May 3, 2016

Abstract

Provided is a self-resonant apparatus in relation to electric and radio technologies, and more particularly, to a wireless power transmission system, the self-resonant apparatus including ring resonators. Here, the ring resonators may be represented by a combination having metamaterial features, the combination may include split-ring resonators (SRRs) connected in parallel to capacitors, a front surface and a rear surface of each of the SRRs may be connected to be twisted in an alternating pattern, and each SRR may be executed as a metal strip mounted on a dielectric layer and connected to a neighboring SRR by a series capacitor.

First claim

What is claimed is:

1. A self-resonant apparatus for a wireless power transmission system, the self-resonant apparatus comprising:
a plurality of ring resonators configured to transmit or receive wireless power, the plurality of ring resonators comprising split-ring resonators (SRRs) connected in parallel to capacitors, a front surface and a rear surface of each of the SRRs are connected and twisted in an alternating pattern, and
each SRR comprises a metal strip mounted on a dielectric layer and is connected to a neighboring SRR by a series capacitor.

2. The self-resonant apparatus of claim 1 , wherein the SRRs revolve, and an angle of the revolving is determined for a series surface-mounted capacitor to have an amount of space for mounting.

3. The self-resonant apparatus of claim 1 , wherein the SRRs comprise a round or polygonal shape.

4. The self-resonant apparatus of claim 1 , wherein a thickness of the dielectric layer comprises a range of 50 micrometers (μm) to 1500 μm.

5. The self-resonant apparatus of claim 1 , wherein a dielectric permittivity of the dielectric layer comprises a value in a range of 2 ∈ r to 20 ∈ r .

6. The self-resonant apparatus of claim 1 , wherein the plurality of ring resonators comprise at least two SRRs.

7. The self-resonant apparatus of claim 1 , wherein an operational frequency band of the SRRs comprises a range of 1 megahertz (MHz) to 100 MHz.

8. The self-resonant apparatus of claim 1 , wherein the SRRs connected in parallel to the capacitors are manufactured by a low temperature co-fired ceramics technology or a printed circuit board technology.

9. The self-resonant apparatus of claim 1 , wherein each SRR comprises an equivalent circuit comprising a parallel resonant LC circuit and a series capacitor.

10. The self-resonant apparatus of claim 9 , wherein the parallel resonant LC circuit comprises an inductive element and a capacitive element, and is connected in series to resistor.

11. The self-resonant apparatus of claim 1 , wherein, the combination is represented by an equivalent circuit comprising a plurality of cells, each cell comprises a parallel resonant circuit formed by an SRR and a capacitor being connected in parallel, and the plurality of cells are connected in series via the respective series capacitors.

12. The self-resonant apparatus of claim 11 , wherein a combination of the parallel resonant circuit and the series capacitor is followed by revealing two resonant responses of typical impedance with respect to a metamaterial.

13. The self-resonant apparatus of claim 1 , wherein a Q-factor of the combination comprises a value in a range of 100 to 200.

14. The self-resonant apparatus of claim 1 , further comprising:
a magnetic rode disposed along an axis of the SRRs.

15. The self-resonant apparatus of claim 14 , wherein the magnetic rode comprises ferrite.

16. The self-resonant apparatus of claim 1 , wherein the capacitors are embedded in an internal portion of the dielectric layer comprising a dielectric permittivity that is above a predetermined threshold.

17. A resonant device, comprising:
a plurality of cells, each cell comprising a parallel resonant circuit configured to transmit or receive wireless power, the parallel resonant circuit includes a metamaterial and a capacitor which are arranged in parallel, wherein the plurality of cells are connected in series.

18. The resonant device of claim 17 , wherein the metamaterial comprises a split-ring resonator (SRR).

19. The resonant device of claim 17 , further comprising a plurality of series capacitors such that a respective series capacitor is disposed between each of the plurality of cells.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Vendik Orest Genrihovich
• Kholodnyak Dmitry Victorovich
• Kozlov Dmitry Sergeevich
• Zameshaeva Evgenia Yurevna
• Vendik Irina Borisovna
• Song Keum Su
• Makurin Mikhail Nikolaevich
• Turalchuk Pavel Anatolevich

Classifications

• H01F38/14 Primary

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H01F2017/0026

  Multilayer LC-filter · CPC title

• H01F27/006 Primary

  with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance · CPC title