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Measurement and nonlinear behavioral modeling of the dynamic bias current in an LTE‐A C hireix PA
Author(s) -
GalavizAguilar José Alejandro,
Chang HsiuChen,
MartinezRodriguez Francisco,
Roblin Patrick,
Núñez Pérez José C.
Publication year - 2017
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.30817
Subject(s) - dissipation , nonlinear system , behavioral modeling , power (physics) , amplifier , electronic engineering , dynamic demand , current (fluid) , control theory (sociology) , engineering , computer science , electrical engineering , physics , cmos , control (management) , quantum mechanics , artificial intelligence , thermodynamics
The measurement and modeling of the dynamic power dissipation of a dual‐input Chireix power amplifier driven by LTE modulated signals is reported to optimize its dynamic efficiency. Two memory cubic spline FIR and NARMA behavioral models are verified to accurately predict the measured instantaneous PA bias‐current and power dissipation as a function of the PA RF output power.