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CMOS class AB power amplifier linearization by feed forward technique for wireless communications
KTH, School of Information and Communication Technology (ICT), Integrated Devices and Circuits.
2011 (English)In: International Journal on Communications Antenna and Propagation, ISSN 2039-5086, Vol. 1, no 1, 29-33 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents a class AB PA with an optimized load impedance for maximum output power in a standard 180 nm CMOS technology. This Amplifier shows a measured output power of 22.36 dBm at 2.4 GHz for a supply voltage of 1.8 V. It will display necessary trade offs for optimum output power and small signal gain. Simulation results show that the drain efficiency at 1 dB compression point reaches 31.41%. Additionally, using a feed forward linearization technique, P1-dB is increased to 24.05 dBm which shows 3.46 dB improvement compared to the case without linearization. Enhancement in the amplifier linearity range leads to lower adjacent channel interference and thus higher data transfer rate. © 2011 Praise Worthy Prize S.r.l. - All rights reserved.

Place, publisher, year, edition, pages
2011. Vol. 1, no 1, 29-33 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-161055Scopus ID: 2-s2.0-84906512930OAI: oai:DiVA.org:kth-161055DiVA: diva2:793307
Note

QC 20150306

Available from: 2015-03-06 Created: 2015-03-06 Last updated: 2015-03-06Bibliographically approved

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