Title :
Low-Power All-Analog Component Separator for an 802.11a/g LINC Transmitter
Author :
Panseri, Luigi ; Romanò, Luca ; Levantino, Salvatore ; Samori, Carlo ; Lacaita, Andrea L.
Author_Institution :
Dipt. di Elettronica ed Informazione, Politecnico di Milano
Abstract :
This paper presents an all-analog signal component separator integrated in 0.25-mum CMOS and suitable for an 802.11a/g wireless-LAN LINC transmitter. Differently from previous analog and digital separators, the proposed analog circuit derives two constant-envelope components from the baseband-modulating signal, thus limiting the overall transmitter power consumption and the signal distortion. The circuit passes all the tests of the 54-Mb/s IEEE 802.11a/g standard, with no calibration between the paths of the two separated signals and consumes 45mW
Keywords :
CMOS integrated circuits; linearisation techniques; radio transmitters; source separation; wireless LAN; 0.25 micron; 45 mW; 54 Mbit/s; CMOS IC; IEEE 802.11a/g; LINC transmitter; analog component separator; linear amplification-with-nonlinear component; signal component separator; Baseband; Circuit testing; Energy consumption; Nonlinear distortion; Particle separators; Peak to average power ratio; Power amplifiers; Power generation; Silicon compounds; Transmitters;
Conference_Titel :
Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Conference_Location :
Montreux
Print_ISBN :
1-4244-0303-0
DOI :
10.1109/ESSCIR.2006.307583
