Calibration of an RF attenuator
US11515899B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2022 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Jan 26, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/307
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a circuit including an input terminal configured to receive a first signal at a first frequency; a demodulation chain connected to the input terminal and including a low-noise amplifier having an input coupled to the terminal; a controllable variable impedance connected between a first node and a node configured to receive a reference potential, the first node being connected to the input terminal and/or to the amplifier input; and a current source configured to deliver a current at the first frequency to the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.