Research on Modeling Methods of Power Amplifier with Memory Effect in Broadband Communication

Lu Sun; Long Long Xue; Jia Li Wang; Chun Yang Zhou

doi:10.4028/www.scientific.net/AMM.687-691.4060

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 687-691Research on Modeling Methods of Power Amplifier...

Research on Modeling Methods of Power Amplifier with Memory Effect in Broadband Communication

Abstract:

Memory effect of power amplifier (PA) due to broadband signals which adopt new modulation technique is becoming obvious, and worsening the linearity of PA. Behavioral modeling for RF (Radio Frequency) power amplifier is indispensable to design digital pre-distortion system by which we can promote the efficiency of PA. According to the simulation data in the software of ADS (Advanced Design System), behavioral models of MRF21085 amplifier can be established by MATLAB. Comparison of memory polynomial model and ADS simulation of MRF21085 amplifier demonstrate memory polynomial model can represent the electric characteristic of it exactly.

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Periodical:

Applied Mechanics and Materials (Volumes 687-691)

Pages:

4060-4063

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.687-691.4060

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Online since:

November 2014

Authors:

Lu Sun*, Long Long Xue, Jia Li Wang, Chun Yang Zhou

Keywords:

Memory Effect, Memory Polynomial Model, Nonlinear Power Amplifier

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* - Corresponding Author

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