Global Patent Index - EP 2022179 A1

EP 2022179 A1 2009-02-11 - HIGH EFFICIENCY LINEARIZATION POWER AMPLIFIER FOR WIRELESS COMMUNICATION

Title (en)

HIGH EFFICIENCY LINEARIZATION POWER AMPLIFIER FOR WIRELESS COMMUNICATION

Title (de)

HOCHLEISTUNGS-LINEARISIERUNGSENDVERSTÄRKER ZUR DRAHTLOSEN KOMMUNIKATION

Title (fr)

AMPLIFICATEUR DE PUISSANCE DE LINÉARISATION À HAUTE EFFICACITÉ POUR UNE COMMUNICATION SANS FIL

Publication

EP 2022179 A1 (EN)

Application

EP 07861302 A

Priority

  • US 2007010566 W
  • US 79582006 P
  • US 87664006 P
  • US 89774607 P
  • US 89831207 P

Abstract (en)

[origin: WO2008105775A1] An embodiment of the invention uses a predistortion correction signal to combination the modulated RF signal by an analog multiplier for linearization of power amplifiers having nonlinear characteristics such as those used in wireless RF transmitters. A predistortion controller comprises a plurality of down converters for retrieving both the ideal non-distorted information and the feedback distorted information, together with pre-stored digitally-indexed predistortion information stored, for example, in a look-up table. The digitally- indexed information models nonlinear characteristics of the high power amplifier, and is stored prior to processing of pre-compensation in the power amplifier. When the predistortion information is combined with the modulated RF signal in the analog multiplier, the result is a substantially linear information transmission from the power amplifier.

IPC 8 full level (invention and additional information)

H03F 1/32 (2006.01); H04B 7/00 (2006.01)

CPC (invention and additional information)

H03F 1/3247 (2013.01); H03F 1/3241 (2013.01); H03F 1/3294 (2013.01); H03F 3/24 (2013.01); H03F 2200/57 (2013.01); H03F 2201/3233 (2013.01)

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

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

WO 2008105775 A1 20080904; EP 2022179 A1 20090211; EP 2022179 A4 20091223

INPADOC legal status


2011-03-09 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20100918

2010-03-31 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20100303

2009-12-23 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20091125

2009-12-23 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H03F 1/32 20060101AFI20091119BHEP

2009-12-23 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H04B 7/00 20060101ALI20091119BHEP

2009-02-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081208

2009-02-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): 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

2009-02-11 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS