Linearization technique using digital Cartesian loop transmitter

Author

Dúcar, Puloma García ; De Mingo, Jesús ; Valdovinos, Antonio

Author_Institution

Centro Politecnico Superior, Zaragoza Univ., Spain

Volume

5

fYear

2002

fDate

15-18 Sept. 2002

Firstpage

2377

Abstract

The study of a digital Cartesian loop transmitter as power amplifier linearization technique is presented. It is based on the Cartesian loop architecture but introducing the advantages and possibilities of using digital solutions. Stability is assured by including some adjustment elements in the loop and the digital implementation avoids modulator and demodulator impairments and provides an accurate control and compensation of loop delay.

Keywords

digital signal processing chips; feedback amplifiers; mobile radio; nonlinear network synthesis; power amplifiers; radio transmitters; TMS320LC54x DSP; adjacent channel interference; analogue blocks; demodulator impairments; digital Cartesian loop transmitter; digital signal processing blocks; feedback; loop delay; mobile communications; modulator impairments; power amplifier linearization; Delay; Digital signal processing; Feedback loop; Noise figure; Noise generators; Nonlinear distortion; Power amplifiers; Radio frequency; Radio transmitters; Radiofrequency amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on

Print_ISBN

0-7803-7589-0

Type

conf

DOI

10.1109/PIMRC.2002.1046570

Filename

1046570