RX-TX-Schalter mit zwei Leistungsverstärkern

Details

Veröffentlichungs-Nr.

EP2587676

Aktenzeichen

EP11306373

Anmeldetag

24. Oktober 2011

Veröffentlichung

11. Juni 2014

Erteilung

11. Juni 2014

Rechtsraum

EP

IPC

H04B1/04H04B1/40

Abstract

There is described a RF front end circuit comprising: -a common impedance matching network (4) connected to an output terminal (5), -a first power amplifier (1), PA, arranged to drive power to the output terminal through the common impedance matching network, -a second PA (2) adapted to drive power to the output terminal through the common impedance matching network and a second impedance matching network (12), -a reference terminal (9, 92) at a reference voltage (Vdd2), the second impedance matching network comprising at least a first connection path to the reference terminal, a second connection path to the second PA and a third connection path to the common impedance matching network, wherein, the second impedance matching network comprises a first impedance switch (SI1) configured to open the first connection path responsive to the second PA being put into an OFF state.

Anmelder

Firma

ST-Ericsson SA

Land

🇨🇭 Schweiz

Fachgebiete