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Design of Power Efficient Power Amplifier for B3G Base Stations.

By Abubakar S. Hussaini, B.A.L. Gwandu, Raed A. Abd-Alhameed and Jonathan Rodriguez

Abstract

yesFourth generation systems require the use of both \ud amplitude and phase modulation to efficiently utilize the \ud available spectrum and to obtain high data rates, hence imposing \ud stringent requirements on the power amplifier in terms of \ud efficiency and linearity and requires the power amplifier to \ud operate linearly and efficiently. The B3G base station transceiver \ud Doherty power amplifier was designed to operate over the \ud frequency range of 3.47GHz to 3.53GHz mobile WiMAX band \ud using Freescale┬┐s N-Channel Enhancement-Mode Lateral \ud MOSFET Transistor, MRF7S38010HR3; The performances of \ud the Doherty amplifier are compared with that of the conventional \ud Class AB amplifier. The results of 43 dBm output power and \ud 66% power added efficiency are achieved

Topics: Class AB, Doherty RF power amplifier, OFDM, Mobile WiMAX, 3.5GHz band base station, 4G - Fourth generation systems
Year: 2010
OAI identifier: oai:bradscholars.brad.ac.uk:10454/4793
Provided by: Bradford Scholars

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