Premium
An impedance‐based model for the evaluation of IM3 in nonlinear amplifiers showing memory effects
Author(s) -
MaderoAyora María J.,
ReinaTosina Javier,
CrespoCadenas Carlos
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23140
Subject(s) - intermodulation , wideband , amplifier , microwave , nonlinear system , electronic engineering , bandwidth (computing) , electrical impedance , nonlinear distortion , engineering , physics , electrical engineering , telecommunications , quantum mechanics
Abstract A simple model that captures nonlinear memory effects in wideband amplifiers is presented in this work. The model defines an equivalent hypothetical load impedance that explains asymmetries, in magnitude and phase, in two‐tone IM products, showing good correspondence with measurements. It helps to understand the intermodulation distortion dependence on modulation bandwidth. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 568–573, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23140