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Behavioral modeling of the frequency translation process in direct conversion transmitters
Author(s) -
Gadringer Michael E.,
Schuberth Christian,
Magerl Gottfried
Publication year - 2010
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20440
Subject(s) - transmitter , amplifier , distortion (music) , nonlinear system , microwave , nonlinear distortion , translation (biology) , signal (programming language) , power (physics) , computer science , broadband , electronic engineering , process (computing) , physics , acoustics , engineering , telecommunications , chemistry , bandwidth (computing) , channel (broadcasting) , biochemistry , quantum mechanics , messenger rna , gene , programming language , operating system
This article presents a black‐box model that can be applied to represent the nonlinear dynamic behavior of a direct conversion transmitter excluding the power amplifier. Several distortion mechanisms are excited and compensated using only magnitude measurements of the output signal components. The information extracted in this way is used to parameterize the model. The validity of the suggested approach is confirmed by comparing the measured and the predicted transmitter's response when driven by broadband input signals. © 2010 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2010.