In this paper we propose a novel approach for the design of a concurrent dual-band power amplifier (PA) optimized for envelope tracking (ET) operation. The design was based around the WCDMA probability distribution function and implemented through a multi-section transmission line matching technique. This technique was applied to a concurrent 870 and 1970 MHz ET PA designed around a GaAs HEMT. The ET friendly design method has proven capable to enhance the average efficiency by a 2.2 factor over a signal bandwidth of 140MHz and 60MHz in the two carrier frequency bands respectively for the specific WCDMA signal. A detailed discussion of the design method and the validating experimental results are reported.

A concurrent dual band 870 and 1970 MHz 10 W envelope tracking PA designed by a WCDMA probability distribution conscious approach / Niccolo Giovannelli; Alessandro Cidronali; Gianfranco Manes. - ELETTRONICO. - (2011), pp. 1-4. (Intervento presentato al convegno 2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications) [10.1109/PAWR.2011.5725383].

A concurrent dual band 870 and 1970 MHz 10 W envelope tracking PA designed by a WCDMA probability distribution conscious approach

CIDRONALI, ALESSANDRO
Conceptualization
;
MANES, GIANFRANCO
Membro del Collaboration Group
2011

Abstract

In this paper we propose a novel approach for the design of a concurrent dual-band power amplifier (PA) optimized for envelope tracking (ET) operation. The design was based around the WCDMA probability distribution function and implemented through a multi-section transmission line matching technique. This technique was applied to a concurrent 870 and 1970 MHz ET PA designed around a GaAs HEMT. The ET friendly design method has proven capable to enhance the average efficiency by a 2.2 factor over a signal bandwidth of 140MHz and 60MHz in the two carrier frequency bands respectively for the specific WCDMA signal. A detailed discussion of the design method and the validating experimental results are reported.
2011
2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications
2011 IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications
Niccolo Giovannelli; Alessandro Cidronali; Gianfranco Manes
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/780111
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