Patent · US Active

Quasi-broadband amplifier according to the Doherty principle

US9438174B2 · kind B2 · utility

0Cited by

3References

13Claims

0Family size

Assignee

Rohde & Schwarz GmbH & Co. KG · DE

Inventors

Sebastian Stempfl · Munich, DE
Bernhard Kaehs · Birkenfeld, DE
Uwe Dalisda · Olching, DE
Lothar Schenk · Berlin, DE

Key dates

Filing date	Apr 23, 2013
Grant date	Sep 6, 2016
Priority date	—
Expiry date	Apr 23, 2033

Classification

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

Abstract

An amplifier comprises a first amplifier circuit, a second amplifier circuit, a hybrid-coupler circuit and a termination. The hybrid-coupler circuit comprises an output port and an isolation port. The termination in this context is connected to the isolation port of the hybrid-coupler circuit. The termination comprises a first switch, a first capacitor and a first inductance.

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