Techniques for tuning an antenna of an energy harvester
US11689053B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An energy harvester and a method for tuning an antenna frequency of the energy harvester is provided. The energy harvester includes: a tuner circuit coupled to at least one antenna, wherein the tuner circuit includes at least one adjustable capacitor, wherein the at least one antenna is configured to harvest an electromagnetic ambient energy; a controller connected to the tuner circuit, wherein the controller is configured to control a voltage level within the energy harvester, wherein the controller is configured to iteratively set the at least one adjustable capacitor to tuning states until a best tuning state is set, wherein the best tuning state of the at least one adjustable capacitor substantially matches an antenna frequency and a frequency of the electromagnetic ambient energy; and a rectifier to convert the electromagnetic ambient energy to a direct current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.