Quad-band GSM/GPRS/EDGE polar loop transmitter

28 September 2004

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

No. 01936530,p. 186-521
https://doi.org/10.1109/isscc.2004.1332656

Abstract

An EDGE transmitter, using a non-linear GSM type PA, is presented. A dual feedback loop ensures robust performance even under VSWR variations. No isolator or external PA filtering is required. The EDGE spectral mask is met with an RMS EVM of <3% at 29 dBm at the antenna, corresponding to 2 dB above nominal maximum output power.

Keywords

GSM
GROUND PENETRATING RADAR
TRANSMITTERS
AMPLITUDE MODULATION
FEEDBACK LOOP
PHASE FREQUENCY DETECTOR
OUTPUT FEEDBACK
PHASE MODULATION
VOLTAGE-CONTROLLED OSCILLATORS
RADIO FREQUENCY

This publication has 1 reference indexed in Scilit:

Polar modulator for multi-mode cell phones
Published by Institute of Electrical and Electronics Engineers (IEEE) ,2004