Polar modulator for multi-mode cell phones

3 February 2004

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 439-445
https://doi.org/10.1109/cicc.2003.1249436

Abstract

This paper describes the architecture for a CMOS polar modulator IC that supports AMPS, ANSI-136, GSM/GPRS, and EDGE in a single modulator. Extension to include UMTS has been prototyped. The paper includes design details and evaluation results. The architecture has a high digital content and is potentially suitable for integration into baseband ICs. Performance results for transmitters using this design are included.

Keywords

CELLULAR PHONES
FREQUENCY
DIGITAL MODULATION
TRANSMITTERS
SIGNAL GENERATORS
POWER AMPLIFIERS
PHASE MODULATION
CLOCKS
BASEBAND
DIGITAL INTEGRATED CIRCUITS

This publication has 1 reference indexed in Scilit:

A wideband sigma-delta phase-locked-loop modulator for wireless applications
IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 2003