Systems and methods for battery-less wirelessly powered dielectric sensors
US12320769B2 · kind B2 · utility
0Cited by
80References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Aug 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Wirelessly powered dielectric sensor in accordance with embodiments of the invention are disclosed. In many embodiments, a wirelessly powered dielectric sensor includes an RF-power receiving antenna that receives electromagnetic power, a power management unit (PMU) including a capacitor to rectify and store the electromagnetic power, and a dielectric constant sensing sensor, where the PMU monitors harvested energy and operates the dielectric sensing sensor; and where the dielectric sensing sensor senses a dielectric constant of a material that is in close proximity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.