Global Patent Index - EP 2097974 A2

EP 2097974 A2 20090909 - DOHERTY AMPLIFIER SYSTEM

Title (en)

DOHERTY AMPLIFIER SYSTEM

Title (de)

DOHERTY-VERSTÄRKER-SYSTEM

Title (fr)

SYSTÈME D'AMPLIFICATEUR DE DOHERTY

Publication

EP 2097974 A2 20090909 (DE)

Application

EP 07819767 A 20071112

Priority

  • EP 2007009781 W 20071112
  • DE 102006057324 A 20061205

Abstract (en)

[origin: WO2008067891A2] A Doherty amplifier system (1) comprises a plurality of sub-amplifiers (2 - 4) the inputs of which are controlled with different phase angles and/or signal amplitudes of an input signal (S<SUB>I</SUB>) via a control unit (5). The invention is characterized in that every output of every sub-amplifier (2 - 4) is directly connected to an antenna element (10 - 12) without the output signals of the sub-amplifiers (2 - 4) being combined with each other before they are supplied to the antenna elements (10 - 12).

IPC 8 full level

H03F 1/07 (2006.01)

CPC (source: EP US)

H03F 1/0288 (2013.01 - EP US)

Citation (search report)

See references of WO 2008067891A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2008067891 A2 20080612; WO 2008067891 A3 20080912; AU 2007327942 A1 20080612; CA 2646633 A1 20080612; DE 102006057324 A1 20080619; EP 2097974 A2 20090909; NO 20084038 L 20080923; US 2009115530 A1 20090507; ZA 200808027 B 20091230

DOCDB simple family (application)

EP 2007009781 W 20071112; AU 2007327942 A 20071112; CA 2646633 A 20071112; DE 102006057324 A 20061205; EP 07819767 A 20071112; NO 20084038 A 20080923; US 29618607 A 20071112; ZA 200808027 A 20071112