Linear CMOS PA with low quiescent current and boosted maximum linear output power
US10560060B2 · kind B2 · utility
2Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Apr 28, 2016 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Apr 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G2201/40
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present disclosure relates to a power amplifier (PA) system provided in a semiconductor device and having feed forward gain control. The PA system comprises a transmit path and control circuitry. The transmit path is configured to amplify an input radio frequency (RF) signal and comprises a first tank circuit and a PA stage. The control circuitry is configured to detect a power level associated with the input RF signal and control a first bias signal provided to the PA stage based on a first function of the power level and control a quality factor (Q) of the first tank circuit based on a second function of the power level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.