Wireless energy transmission structure

• US 8,319,473 B2
• Filed: 07/09/2010
• Issued: 11/27/2012
• Est. Priority Date: 04/05/2010
• Status: Active Grant

• Current Assignee: Soongsil University Research Consortium Techno-Park, Wit Co., Ltd.
• Original Assignee: Samsung Electro-Mechanics Co., Ltd. (Samsung Group), Soongsil University Research Consortium Techno-Park
• Inventors: Choi, Jae Won, Kim, Eung Ju, Lee, Kwang Du, Park, Chul Gyun, Kim, Jeong Hoon, Hwang, Sang Hoon, Seo, Chul Hun, Yoon, Jung Ho
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US12/833,662
• Publication Number:
  US 20110241609A1
• Time in Patent Office: 872 Days
• Field of Search: 320/107, 320/108
• US Class Current: 320/108
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas

Abstract

Disclosed herein is a wireless energy transmission structure, which includes a printed circuit board, a disk section, and a wire section. The printed circuit board is formed in a ring type, the disk section is constituted by a first conductive plate and a second conductive plate formed on portions of the printed circuit board corresponding to each other to be spaced by a predetermined gap and a dielectric material inserted between the first conductive plate and the second conductive plate, and the wire section is constituted by a plurality of meta cells having a meta material structure, which are repetitively formed to surround the exterior and interior of the printed circuit board and a transmission line connected to each of the first conductive plate and the second conductive plate and surround the plurality of meta cells.

Claims

1. A wireless energy transmission structure, comprising:

a ring-type printed circuit board;

a disk section constituted by a first conductive plate and a second conductive plate formed on portions of the printed circuit board corresponding to each other to be spaced by a predetermined gap and a dielectric material inserted between the first conductive plate and the second conductive plate; and

a wire section constituted by a plurality of meta cells having a meta material structure, which are repetitively formed to surround the exterior and interior of the printed circuit board and a transmission line connected to each of the first conductive plate and the second conductive plate and surrounding the plurality of meta cells.

2. The wireless energy transmission structure as set forth in claim 1, wherein the printed circuit board is formed in a circular or rectangular ring type.

3. The wireless energy transmission structure as set forth in claim 1, wherein in the printed circuit board, the width of a ring portion is 3 cm and the length of one side is 30 cm.

4. The wireless energy transmission structure as set forth in claim 1, wherein the printed circuit board is made of an FR4 material of which the dielectric constant is 4.4 and the thickness 2.0 mm.

5. The wireless energy transmission structure as set forth in claim 1, wherein the disk section varies a capacitor value depending on a resonance frequency.

6. The wireless energy transmission structure as set forth in claim 5, wherein the disk section varies the capacitor value by a resonance frequency compensating capacitor installed between the first conductive plate and the second conductive plate.

7. The wireless energy transmission structure as set forth in claim 1, wherein the dielectric material is air.

8. The wireless energy transmission structure as set forth in claim 1, wherein the dielectric material has dielectric constant of 9.2.

9. The wireless energy transmission structure as set forth in claim 1, wherein a width between the first conductive plate and a second conductive plate is 0.28 mm, radii of the first conductive plate and the second conductive plate are 50 mm, and widths of the first conductive plate and the second conducive plate are 30 mm.

10. The wireless energy transmission structure as set forth in claim 1, wherein the meta cell includes first meta cells repetitively formed to surround the interior of the printed circuit board;

and

second meta cells repetitively formed to surround the exterior of the printed circuit board.

11. The wireless energy transmission structure as set forth in claim 10, wherein the first meta cell and the second meta cell are connected to each other in parallel to form one pair.

12. The wireless energy transmission structure as set forth in claim 10, wherein a gap between the first meta cell and the second meta cell is 2.0 mm and a gap between a line width and a line of the first meta cell and the second meta cell is 1.0 mm.

13. The wireless energy transmission structure as set forth in claim 1, wherein the meta cell has a circular or rectangular shape.

14. The wireless energy transmission structure as set forth in claim 1, wherein the meta cell has a spiral structure.

15. The wireless energy transmission structure as set forth in claim 1, wherein the meta cell has a split ring structure.

16. The wireless energy transmission structure as set forth in claim 15, wherein the meta cell is formed by two or more split rings and split portions of the split ring are formed at locations facing each other.

17. The wireless energy transmission structure as set forth in claim 1, wherein the transmission line has a structure in which the meta cell is etched.