Compensation circuit of power amplifier and associated compensation method
US9960947B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Jul 12, 2017 |
| Grant date | May 1, 2018 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2001/0408
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A compensation circuit of a power amplifier includes a varactor, a voltage sensor and a control circuit. The varactor is coupled to an input terminal of the power amplifier. The voltage sensor is arranged for detecting an amplitude of an input signal of the power amplifier to generate a detecting result. The control circuit is coupled to the varactor and the voltage sensor, and is arranged for controlling a bias voltage of the varactor to adjust a capacitance of the varactor according to the detecting result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.