Circuit structure and method for improving harmonic suppression capability of radio frequency power amplifier
US11139783B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2017 |
| Grant date | Oct 5, 2021 |
| Priority date | — |
| Expiry date | Nov 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/451
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit structure for improving the harmonic suppression capability of a radio frequency power amplifier includes an output stage unit, a high-order harmonic suppression unit, and a low-order harmonic suppression unit. The output stage unit outputs a signal to be subjected to harmonic suppression; the high-order harmonic suppression unit comprises a first filter capacitor and a back hole, and is used for suppressing fifth or higher harmonics; the output stage unit and the first filter capacitor are connected to the ground in series by means of the back hole; the low-order harmonic suppression unit is connected to the output stage unit to suppress second, third and fourth harmonics. According to the design, the high-harmonic suppression capability of the radio frequency power amplifier is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.