Patent · US Active

Predistorition linearizer with bridge topology having an equalizer stage for each bridge arm

US8493143B2 · kind B2 · utility

11Cited by

5References

15Claims

0Family size

Assignee

Tesat-Spacecom GmbH & Co. KG · DE

Inventors

Abdel-Messiah Khilia · Backnang, DE
Detlef Leucht · Murrhardt, DE
Walter Gross · Herzogenaurach, DE
Michael Jutzi · Backnang, DE
Hartmut Schreiber · Spree, DE

Key dates

Filing date	Sep 10, 2009
Grant date	Jul 23, 2013
Priority date	—
Expiry date	Sep 10, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH03F1/3276
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

Disclosed is a predistortion linearizer for power amplifiers using a bridge topology, which has the advantages that an equalizer stage is disposed in each of the linear and nonlinear branches. This equalizer stage is used to adjust the frequency response of the complex expansion of the bridge. The equalizers introduce variable transmission functions in the linear and nonlinear bridge branches, so that the linearizer compensates for the individual nonlinear frequency response of a power amplifier, which varies within a manufacturing lot.

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