Patent · US Active

Doherty amplifier with additional delay element

US9787262B2 · kind B2 · utility

4Cited by

3References

10Claims

0Family size

Assignee

Rohde & Schwarz GmbH & Co. KG · DE

Inventors

Lothar Schenk · Berlin, DE
Uwe Dalisda · Olching, DE

Key dates

Filing date	Aug 21, 2014
Grant date	Oct 10, 2017
Priority date	—
Expiry date	Aug 21, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH03F2200/451
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An amplifier includes two amplifier circuits and a power splitter. The power splitter splits a signal to be amplified and generates a phase displacement of 90° in the case of a rated frequency between resulting partial signals. In this context, the amplifier circuits each amplify one of the partial signals or respectively a signal derived from one of the partial signals. The amplifier additionally contains a first delay element, which is arranged between the power splitter and one of the amplifier circuits.

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