US 2022/0190877 A1 · SYSTEMS, METHODS, AND MEDIA FOR WIRELESS POWER TRANSFER

Abstract

Systems, methods, and media for wireless power transfer are provided. In some embodiments, a system for wireless power transfer comprises: a processor communicatively coupled with a tuning element and a plurality of ports in an enclosure, the processor configured to cause the ports to generate electromagnetic radiation at a first frequency, set the tuning element to a first setting, acquire electromagnetic response from the ports, determine an S-matrix using the electromagnetic response, determine an eigenvalue of the S-matrix, repeat these steps (changing the first frequency and/or first setting) at least until the determined eigenvalue is approximately zero, determine a resolved electromagnetic radiation frequency and a resolved tuning element setting having the approximately zero eigenvalue, determine an eigenvector associated with the resolved electromagnetic radiation frequency and resolved tuning element setting, and cause the ports to generate the electromagnetic radiation at the resolved frequency with phase and amplitude determined from the eigenvector.

Claims20

Dependent claims

A device for wireless power transfer to a target in an enclosure, the enclosure having a tuning element and a plurality of ports, the device comprising:

a processor communicatively coupled with the tuning element and the plurality of ports, the processor configured to:
(a) cause the ports to generate an electromagnetic radiation at a first frequency;
(b) set the tuning element to a first setting;
(c) acquire an electromagnetic response from the plurality of ports;
(d) determine an S-matrix using the acquired electromagnetic response;
(e) determine an eigenvalue of the S-matrix;
(f) repeat (a) to (e) at least until the determined eigenvalue is approximately zero, wherein repeating (a) to (e) comprises changing at least one of the first frequency or first setting;
(g) determine a resolved electromagnetic radiation frequency and a resolved tuning element setting having the approximately zero eigenvalue;
(h) determine an eigenvector associated with the resolved electromagnetic radiation frequency and a resolved tuning element setting;
and
(i) cause the ports to generate the electromagnetic radiation at the resolved frequency with a phase and an amplitude determined from the eigenvector.

8 more elements

A non-transitory computer-readable medium containing computer executable instructions that, when executed by a processor, cause the processor to perform a method for wireless power transfer to a target in an enclosure, the enclosure having a tuning element and a plurality of ports, the method comprising:

(a) causing the ports to generate an electromagnetic radiation at a first frequency;
(b) setting the tuning element to a first setting;
(c) acquiring an electromagnetic response from the plurality of ports;
(d) determining an S-matrix using the acquired electromagnetic response;
(e) determining an eigenvalue of the S-matrix;
(f) repeating (a) to (e) at least until the determined eigenvalue is approximately zero, wherein repeating (a) to (e) comprises changing at least one of the first frequency or first setting;
(g) determining a resolved electromagnetic radiation frequency and a resolved tuning element setting having the approximately zero eigenvalue;
(h) determining an eigenvector associated with the resolved electromagnetic radiation frequency and a resolved tuning element setting;
and
(i) causing the ports to generate the electromagnetic radiation at the resolved frequency with a phase and an amplitude determined from the eigenvector.

7 more elements

Dependencies are inferred from the claim text.

Systems, methods, and media for wireless power transfer

Life of this patent

Systems, methods, and media for wireless power transfer

Life of this patent

Abstract

Claims20