Autocorrelation analysis of distortion generated from bandpass nonlinear circuits

Author

Gard, Kevin ; Larson, Lawrence E. ; Steer, Michael B.

Author_Institution

QUALCOMM CDMA Technol. Inc., San Diego, CA, USA

fYear

2001

fDate

2001

Firstpage

345

Lastpage

348

Abstract

Estimation of spectral regrowth generated by a digitally modulated carrier passed through a nonlinear RF circuit is analyzed using a formulation of the output autocorrelation function. The estimation is based on developing an analytical expression for the output power spectrum when the nonlinearity is modeled a complex power series model extracted from measured amplitude-to-amplitude (AM-AM) and amplitude-to-phase (AM-PM) characteristics. Comparisons are presented of measured versus predicted ACPR values for a CDMA amplifier

Keywords

amplitude modulation; cellular radio; code division multiple access; correlation methods; digital radio; nonlinear distortion; nonlinear network analysis; ACPR values; CDMA amplifier; amplitude-to-amplitude characteristics; amplitude-to-phase characteristics; autocorrelation analysis; bandpass nonlinear circuits; complex power series model; digitally modulated carrier; nonlinear RF circuit; output power spectrum; spectral regrowth; Amplitude estimation; Autocorrelation; Circuit analysis; Digital modulation; Multiaccess communication; Nonlinear distortion; Power amplifiers; Power generation; Power measurement; Radio frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits, 2001, IEEE Conference on.

Conference_Location

San Diego, CA

Print_ISBN

0-7803-6591-7

Type

conf

DOI

10.1109/CICC.2001.929798

Filename

929798