Magnetic Coils Having Cores With High Magnetic Permeability

• US 20170077713A1
• Filed: 09/10/2015
• Published: 03/16/2017
• Est. Priority Date: 09/10/2015
• Status: Active Grant

• Current Assignee: Quantum Wave LLC
• Original Assignee: Cpg Technologies, LLC
• Inventors: Corum, James F., Corum, Kenneth L., Lilly, James D.
• Granted Patent: US 10,193,229 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H01Q 1/084 Pivotable antennas
• CPC Class Codes: H01Q 1/36 Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewithH01Q1/08, H01Q1/14 take precedence
• CPC Class Codes: H01Q 7/06 with core of ferromagnetic material H01Q7/02 takes precedence
• CPC Class Codes: H01Q 9/32 Vertical arrangement of element H01Q9/40 takes precedence

Abstract

Aspects of magnetic coils having cores with relatively high magnetic permeability are described. In some embodiments, a system includes a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling across a terrestrial medium. The guided surface wave receive structure includes a magnetic coil and a core disposed in the magnetic coil. The core in some embodiments has a relative magnetic permeability greater than about 10 and less than about 1,000,000. An electrical load is coupled to the guided surface wave receive structure, with the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave.

Claims

1. A system, comprising:

a guided surface waveguide probe configured to generate a guided surface wave that travels across a terrestrial medium;

a guided surface wave receive structure configured to obtain electrical energy from the guided surface wave, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and

an electrical load coupled to the guide surface wave receive structure, the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe.

2. The system of claim 1, wherein the relative magnetic permeability is greater than about 1,000 and less than about 10,000.

3. The system of claim 1, wherein the relative magnetic permeability is greater than about 100,000.

4. The system of claim 1, wherein the relative magnetic permeability is greater than about 10,000.

5. The system of claim 1, wherein the core comprises a nickel-iron magnetic alloy.

6. The system of claim 1, wherein the core comprises an alloy comprising nickel, iron, and molybdenum.

7. The system of claim 1, wherein the magnetic coil is attached to a support structure that is configured to adjust a position of the magnetic coil.

8. The system of claim 1, wherein the magnetic coil is attached to a support structure that is configured to adjust a position of the magnetic coil relative to the guided surface waveguide probe.

9. A method, comprising:

receiving electrical energy in the form of a guided surface wave using a guided surface wave receive structure, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and

supplying the electrical energy to an electrical load coupled to the guided surface wave receive structure.

10. The method of claim 9, further comprising positioning the magnetic coil so that a magnetic flux of the guided surface wave passes through the magnetic coil.

11. The method of claim 9, further comprising adjusting a position of the magnetic coil in response to a change in an orientation of the magnetic coil relative to a guided surface waveguide probe.

12. The method of claim 11, further comprising detecting a change in the orientation of the magnetic coil relative to the guided surface waveguide probe.

13. The method of claim 11, wherein adjusting the position of the magnetic coil causes an angle between a horizon and a longitudinal axis of the core to change.

14. A system, comprising:

a guided surface wave receive structure configured to obtain electrical energy from a guided surface wave traveling across a terrestrial medium, wherein the guided surface wave receive structure comprises a magnetic coil and a core disposed in the magnetic coil, wherein the core has a relative magnetic permeability greater than about 10 and less than about 1,000,000; and

an electrical load coupled to the guided surface wave receive structure, the electrical load being experienced as a load at an excitation source coupled to a guided surface waveguide probe generating the guided surface wave.

15. The system of claim 14, wherein the relative magnetic permeability of the core is greater than about 100.

16. The system of claim 14, wherein the relative magnetic permeability of the core is greater than about 1,000.

17. The system of claim 14, wherein the relative magnetic permeability of the core is greater than about 10,000.

18. The system of claim 14, wherein the relative magnetic permeability of the core is greater than about 5,000 and less than about 60,000.

19. The system of claim 14, wherein the core comprises a nickel-iron magnetic alloy.

20. The system of claim 14, wherein the core comprises an alloy comprising nickel, iron, and molybdenum.