Spectrum analysis at the output of a nonlinear power amplifier with multicarrier signals

Author

COTTAIS, Emmanuel ; Wang, Yide

Author_Institution

Polytech. Nantes, Nantes

fYear

2007

fDate

4-7 Nov. 2007

Firstpage

1144

Lastpage

1148

Abstract

The purpose of this paper is to evaluate the spectral regrowth at the output of a power amplifier due to the nonlinearities of this component. An analytical expression of the power spectral density of the signal at the power amplifier output, corresponding to the general case of a multicarrier input signal of winite duration, is derived. From this equation, we can easily find the close form of the power spectral density for monocarrier signals. Real measurements have been performed to validate the theoretical results.

Keywords

power amplifiers; spectral analysis; component nonlinearities; monocarrier signals; multicarrier signals; nonlinear power amplifier; power spectral density; spectral regrowth evaluation; spectrum analysis; winite duration; Broadband amplifiers; Communication systems; Digital audio broadcasting; Digital modulation; Digital video broadcasting; Frequency; Nonlinear equations; Performance evaluation; Power amplifiers; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2109-1

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2007.4487402

Filename

4487402