Title :
A Cartesian-Feedback Linearized CMOS RF Transmitter for EDGE Modulation
Author :
Tee, Luns ; Sacchi, Enrico ; Bocock, Ryan ; Wongkomet, Naratip ; Gray, Paul R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Berkeley, CA
Abstract :
A 1.55GHz CMOS RF transmitter with an integrated class-C power amplifier (PA) is described. The transmitter uses Cartesian feedback to meet EDGE linearity requirements and integrates a direct-conversion modulator, PA, LO phase shifter, feedback mixers and baseband loop filter in a 0.18mum CMOS process. The transmitter produces an 18dBm EDGE modulated output with 18% drain efficiency
Keywords :
CMOS integrated circuits; UHF integrated circuits; UHF power amplifiers; radio transmitters; 0.18 micron; 1.55 GHz; CMOS RF transmitter; Cartesian feedback; EDGE modulation; LO phase shifter; baseband loop filter; direct-conversion modulator; feedback mixers; integrated class-C power amplifier; Baseband; Feedback loop; Filters; Linearity; Phase modulation; Phase shifters; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Transmitters;
Conference_Titel :
VLSI Circuits, 2006. Digest of Technical Papers. 2006 Symposium on
Conference_Location :
Honolulu, HI
Print_ISBN :
1-4244-0006-6
DOI :
10.1109/VLSIC.2006.1705395
