Linearization of a 65nm CMOS power amplifier with a Cartesian Feedback for W-CDMA standard

Author

Delaunay, Nicolas ; Deltimple, Nathalie ; Belot, Didier ; Kerhervé, Eric

Author_Institution

IMS Lab., Talence, France

fYear

2009

fDate

June 28 2009-July 1 2009

Firstpage

1

Lastpage

4

Abstract

A study based on improving linearity of an integrated RF power amplifier (PA) has been done for W-CDMA standard. This power amplifier had been designed in 65 nm CMOS of STMicroelectronics under Cadence. The chosen linearization technique is a Cartesian Feedback (CFB). Thanks to this linearization technique, the ACPR has been improved by 22 dB at 5 MHz from the carrier for an output power of 18 dBm.

Keywords

CMOS integrated circuits; UHF amplifiers; UHF integrated circuits; circuit feedback; code division multiple access; power amplifiers; CMOS power amplifier; W-CDMA; cartesian feedback; frequency 5 MHz; linearization; size 65 nm; wideband code division multiple access; Broadband amplifiers; CMOS technology; Feedback; Linearity; Linearization techniques; Multiaccess communication; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Transmitters; 65nm CMOS technology; Cartesian Feedback; Linearization technique; Power Amplifier; W-CDMA (Wideband Code Division Multiple Access);

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems and TAISA Conference, 2009. NEWCAS-TAISA '09. Joint IEEE North-East Workshop on

Conference_Location

Toulouse

Print_ISBN

978-1-4244-4573-8

Electronic_ISBN

978-1-4244-4574-5

Type

conf

DOI

10.1109/NEWCAS.2009.5290427

Filename

5290427