Switchable clamps across attenuators
US11381268B1 · kind B1 · utility
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Key dates
| Filing date | Jun 25, 2021 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jun 25, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2203/7231
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and devices for limiting the power level of low noise amplifiers (LNA) implemented in radio frequency (RF) receiver front-ends. The described methods are applicable to bypass, low and high gain modes of the LNA. According to the described methods, the decoder allows the signal to be clamped before or after being attenuated. The benefit of such methods is to improve large signal performances (e.g. IIP3, P1dB) of the RF receiver front-end, while still meeting the clamping requirements, or improve (lower) clamped output power, while still meeting large signal performances (e.g. IIP3, P1dB).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.