Title :
Spectrum analysis at the output of a nonlinear power amplifier with multicarrier signals
Author :
COTTAIS, Emmanuel ; Wang, Yide
Author_Institution :
Polytech. Nantes, Nantes
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;
Conference_Titel :
Signals, Systems and Computers, 2007. ACSSC 2007. Conference Record of the Forty-First Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2109-1
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2007.4487402
