Spur cancellation in GSM-GPRS-EDGE power amplifiers with DC-DC converters
US9065385B2 · kind B2 · utility
19Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 30, 2013 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Dec 21, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03F2200/75
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A radio frequency (RF) power amplifier circuit with spur cancellation for GSM/GPRS/EDGE transceivers is disclosed. There is a power amplifier with an RF input, an RF output, and a voltage supply input. Additionally, there is an adjustable DC-DC converter with an input connected to a battery, an output connected to the voltage supply input of the power amplifier with a DC supply voltage signal generated thereby. A spur compensator generates an error control signal responsive to spurs in the DC supply voltage signal. The error control signal is applied to the RF input of the power amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.