Skip to main content
  • Research Article
  • Published:

Spectral Analysis of Polynomial Nonlinearity with Applications to RF Power Amplifiers

Abstract

The majority of the nonlinearity in a communication system is attributed to the power amplifier (PA) present at the final stage of the transmitter chain. In this paper, we consider Gaussian distributed input signals (such as OFDM), and PAs that can be modeled by memoryless or memory polynomials. We derive closed-form expressions of the PA output power spectral density, for an arbitrary nonlinear order, based on the so-called Leonov-Shiryaev formula. We then apply these results to answer practical questions such as the contribution of AM/PM conversion to spectral regrowth and the relationship between memory effects and spectral asymmetry.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to G. Tong Zhou.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Zhou, G.T., Raich, R. Spectral Analysis of Polynomial Nonlinearity with Applications to RF Power Amplifiers. EURASIP J. Adv. Signal Process. 2004, 256395 (2004). https://doi.org/10.1155/S1110865704312114

Download citation

  • Received:

  • Revised:

  • Published:

  • DOI: https://doi.org/10.1155/S1110865704312114

Keywords and phrases