Efficiency analysis of the asymmetric 2-level outphasing PA with Rayleigh enveloped signals

Author

Abou-Chahine, Zeid ; Felgentreff, Tilman ; Fischer, Georg ; Weigel, Robert

Author_Institution

Nokia Siemens Networks GmbH - RF Technol., Ulm, Germany

fYear

2012

Firstpage

85

Lastpage

88

Abstract

This paper focuses on the analysis of the generalized asymmetric outphasing amplification, yielding an expression for its combining efficiency. It also briefly reviews the outphasing power amplifier (PA) concept and interprets it from a functional perspective. The paper concludes with an analytical efficiency optimization for the 2-level asymmetric case with the transmitted signal having a Rayleigh amplitude distribution.

Keywords

optimisation; power amplifiers; Rayleigh amplitude distribution; Rayleigh enveloped signals; asymmetric 2-level outphasing PA; efficiency analysis; efficiency optimization; generalized asymmetric outphasing amplification; outphasing power amplifier; Bandwidth; Microwave circuits; Microwave communication; Modulation; Optimization; Peak to average power ratio; Outphasing architecture; RF PA; Rayleigh PDF; Wilkinson power combining; efficiency maximization;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Amplifiers for Wireless and Radio Applications (PAWR), 2012 IEEE Topical Conference on

Conference_Location

Santa Clara, CA

Print_ISBN

978-1-4577-1119-0

Type

conf

DOI

10.1109/PAWR.2012.6174930

Filename

6174930