WIRELESS POWER RECEIVER AND TRANSFER, WIRELESS POWER TRANSCEIVER SYSTEM, AND WIRELESS POWER TRANSCEIVER MOBILE DEVICE

• US 20140062215A1
• Filed: 08/23/2013
• Published: 03/06/2014
• Est. Priority Date: 08/31/2012
• Status: Active Grant

• Current Assignee: soongsil university-industry cooperation foundation
• Original Assignee: soongsil university-industry cooperation foundation
• Inventors: SEO, Chul Hun, LEE, Chongmin
• Granted Patent: US 9,916,925 B2
• Time in Patent Office: Days
• US Class Current: 307/104
• CPC Class Codes: H01F 27/2804 Printed windings
• CPC Class Codes: H01F 38/14 Inductive couplings for wireless supply or distribution of electric power using inductive coupling H02J50/10
• CPC Class Codes: H01Q 15/0086 said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
• CPC Class Codes: H01Q 7/00 Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
• CPC Class Codes: H02J 50/005 Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/80 involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices

Abstract

A wireless power receiver includes a receiver resonator configured to be coupled to a source resonator to receive a power from the source resonator, the receiver resonator comprising: a planar dielectric layer; an antenna patterned in the form of a loop on the dielectric layer or arranged in the shape of a ring in the exterior of the dielectric layer; and a meta-structure separated from the antenna and arranged on the dielectric layer within the antenna, wherein the meta-structure is configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator.

Claims

1. A wireless power receiver comprising:

a receiver resonator configured to be coupled to a source resonator to receive a power from the source resonator, the receiver resonator comprising;

a planar dielectric layer;

an antenna patterned in the form of a loop on the dielectric layer or arranged in the shape of a ring in the exterior of the dielectric layer; and

a meta-structure separated from the antenna and arranged on the dielectric layer within the antenna, wherein the meta-structure is configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator.

2. The wireless power receiver of claim 1, wherein the meta-structure includes at least one meta-pattern layer.

3. The wireless power receiver of claim 1, wherein the meta-structure has an effective dielectric constant of a positive value and an effective permeability of a negative value, and

wherein the frequency band absorbed by the meta-structure is different from the resonant frequency.

4. The wireless power receiver of claim 1, wherein the meta-structure comprises a plurality of unit cells with a DHMR (Double H-shape Meta-material Resonator) structure.

5. The wireless power receiver of claim 4, wherein the meta-structure has an effective dielectric constant and an effective permeability that are a negative value.

6. The wireless power receiver of claim 5, wherein the dielectric layer comprises a plurality of dipole structures formed on the rear surface of the planar dielectric layer.

7. The wireless power receiver of claim 1, wherein the meta-structure has a Q factor of 100.

8. A wireless power receiver comprising:

a receiver resonator configured to be coupled to a source resonator to receive a power from the source resonator, the receiver resonator comprising;

a first planar dielectric layer;

an antenna patterned in the form of a loop on the first dielectric layer or arranged in the shape of a ring in the exterior of the first dielectric layer;

a first meta-structure arranged on the first dielectric layer within the antenna and configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator;

a second planar dielectric layer located in the exterior of the first dielectric layer; and

a second meta-structure arranged on the second dielectric layer and configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator.

9. The wireless power receiver of claim 8, wherein the second meta-structure is arranged on the same plane as the first meta-structure.

10. The wireless power receiver of claim 9, wherein the second meta-structure is configured to amplify any one of the electric fields and the magnetic fields that are formed in the receiver resonator.

11. The wireless power receiver of claim 8, wherein the second meta-structure is perpendicular to the first meta-structure.

12. The wireless power receiver of claim 11, wherein the second meta-structure is configured to focus any one of the electric fields and the magnetic fields that are formed in the receiver resonator.

13. A wireless power transfer comprising:

a source resonator configured to be coupled to a power supply, the source resonator comprising;

a planar dielectric layer;

an antenna configured patterned in the form of a loop on the dielectric layer; and

a meta-structure arranged within the antenna and configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator.

14. A wireless power transceiver device comprising:

a resonator configured to be coupled to a power supply or a resonator of an external device to transfer and receive to and from the external device, the resonator comprising;

a planar dielectric layer;

an antenna patterned in the form of a loop on the dielectric layer; and

a meta-structure arranged within the antenna and configured to reinforce at least one of the electric fields and magnetic fields that are formed in the receiver resonator.

15. The wireless power transceiver device of claim 14, wherein the meta-structure is physically separated from the antenna and is patterned on the dielectric layer.

16. The wireless power transceiver device of claim 14, wherein the meta-structure comprises one or more meta-pattern layers.

17. The wireless power transceiver device of claim 14, wherein the meta-structure has an effective dielectric constant of a positive value and an effective permeability of a negative value, and wherein the frequency band absorbed by the meta-structure is different from the resonant frequency patterned on the dielectric layer.

18. The wireless power transceiver device of claim 14, wherein the meta-structure comprises a plurality of unit cells with a DHMR (Double H-shape Meta-material Resonator) structure.

19. The wireless power transceiver device of claim 18, wherein the meta-structure has an effective dielectric constant and an effective permeability that are a negative value.

20. The wireless power transceiver device of claim 19, wherein the dielectric layer comprises a dipole structure of meta-materials, which corresponds to the unit cells, formed on the rear surface of the planar dielectric layer.

21. The wireless power transceiver device of claim 14, wherein the meta-structure has a Q factor of 100.