Patent · US Active

Power amplifier with output power control

US7782133B2 · kind B2 · utility

5Cited by

3References

19Claims

0Family size

Assignee

Infineon Technologies AG · DE

Inventors

Winfried Bakalski · Birkenfeld, DE
Markus Zannoth · Munich, DE

Key dates

Filing date	Sep 3, 2008
Grant date	Aug 24, 2010
Priority date	—
Expiry date	Nov 19, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2200/408
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

This disclosure relates systems and methods for a power amplifier with output power control. The power amplifier can include multiple stages of amplification. An RF signal is fed to the power amplifier with output control that amplifies the power of the RF signal to meet operational requirements. A first stage of the power amplifier controls the output power via voltage regulation. An isolating device is introduced in the transmission path of the RF signal between the first stage and the following stages of the power amplifier. The isolating device ensures that the load impedance of the first stage remains fixed at a constant value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.