Low power radar level gauge system with integrated microwave circuit
US9395229B2 · kind B2 · utility
9Cited by
11References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Dec 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S7/028
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a radar level gauge system comprising a signal propagation device; a microwave signal source; a microwave signal source controller; a mixer configured to combine a transmit signal from the microwave signal source and a reflection signal from the surface to form an intermediate frequency signal; and processing circuitry coupled to the mixer and configured to determine the filling level based on the intermediate frequency signal. The microwave signal source is configured to exhibit a phase noise greater than or equal to −70 dBc/Hz @ 100 kHz offset from a carrier frequency for the transmit signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.