SELF-REASONANT APPARATUS FOR WIRELESS POWER TRANSMISSION SYSTEM

• US 20130207479A1
• Filed: 01/10/2013
• Published: 08/15/2013
• Est. Priority Date: 01/10/2012
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: VENDIK, Orest Genrihovich, KOZLOV, Dmitry Sergeevich, ZAMESHAEVA, Evgenia Yurevna, VENDIK, Irina Borisovna, SONG, Keum Su, TURALCHUK, Pavel Anatolevich, KHOLODNYAK, Dmitry Victorovich, MAKURIN, Mikhail Nikolaevich
• Granted Patent: US 9,330,836 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H01F 2017/0026 Multilayer LC-filter
• CPC Class Codes: H01F 27/006 with special arrangement or spacing of turns of the winding(s), e.g. to produce desired self-resonance
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10

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.

Claims

1. A self-resonant apparatus for a wireless power transmission system, the self-resonant apparatus comprising:

a plurality of ring resonators,

wherein the plurality of ring resonators

comprise 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 (μ

m) to 1500 μ

m.

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

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 an active resistance.

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 that 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.