Microwave powered sensor assembly for microwave ovens
US11006487B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2016 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Mar 22, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/664
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a microwave powered sensor assembly for microwave ovens. The microwave powered sensor assembly includes a microwave antenna to generate an RF antenna signal in response to microwave radiation at a predetermined excitation frequency. A direct current (dc) power supply circuit of the microwave powered sensor assembly is operatively coupled to the RF antenna signal to extract energy from the RF antenna signal and produce a power supply voltage. A sensor is connected to the power supply voltage and configured to measure a physical or chemical property of a food item under heating in a microwave oven chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.