This paper focuses and provides experimental data for a 1-bit step envelope tracking power amplifier as a suitable solution to enhance the average PAE for wide dynamic signals. The PA is based on an active core realized combining SiGe HBTs with different sizes, which shows a peak CW PAE around 38% for the state 1 and 42% for state 2 respectively when terminated with optimum terminations. The 1-bit step envelope tracking architecture and its digital predistortion algorithm were implemented in a laboratory test bench. The experimental characterization demonstrates the capability of the proposed system to provide a factor two of improvement in terms of average PAE, without limitation of other signal parameters. Experimental validation is reported for a 2 MHz multi-sine signal with 5.5 dB PAR at 2.074 GHz and for a 17 dBm output total power.

A 1-bit Digital Dynamically Biased Power Amplifier for Step Envelope Tracking Transmitters / M. Mercanti; A. Cidronali; I. Magrini; G. Manes. - STAMPA. - (2009), pp. 334-337. ((Intervento presentato al convegno European Microwave Conference, 2009. EuMC 2009. tenutosi a Rome nel Sept. 29 2009-Oct. 1 2009.

A 1-bit Digital Dynamically Biased Power Amplifier for Step Envelope Tracking Transmitters

MERCANTI, MASSIMILIANO;CIDRONALI, ALESSANDRO;MAGRINI, IACOPO;MANES, GIANFRANCO
2009

Abstract

This paper focuses and provides experimental data for a 1-bit step envelope tracking power amplifier as a suitable solution to enhance the average PAE for wide dynamic signals. The PA is based on an active core realized combining SiGe HBTs with different sizes, which shows a peak CW PAE around 38% for the state 1 and 42% for state 2 respectively when terminated with optimum terminations. The 1-bit step envelope tracking architecture and its digital predistortion algorithm were implemented in a laboratory test bench. The experimental characterization demonstrates the capability of the proposed system to provide a factor two of improvement in terms of average PAE, without limitation of other signal parameters. Experimental validation is reported for a 2 MHz multi-sine signal with 5.5 dB PAR at 2.074 GHz and for a 17 dBm output total power.
European Microwave Conference, 2009. EuMC 2009.
Rome
Sept. 29 2009-Oct. 1 2009
M. Mercanti; A. Cidronali; I. Magrini; G. Manes
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2158/393005
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