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Accurate modeling of wideband RF Doherty power amplifiers using dynamic nonlinear models

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6 Author(s)
Yan Ye ; Coll. of Inf. Sci. & Eng., Ningbo Univ., Ningbo ; Taijun Liu ; Zhiwei Fan ; Xingbin Zeng
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In this paper, a 100-watte LDMOS Doherty power amplifier is designed to test the modeling capability of the widely used memory polynomial model and the augmented Wiener model for the dynamic nonlinear behaviors of a wideband PA. The augmented Wiener model and its identification algorithm are discussed in details. The experimental validation results demonstrate that the augmented Wiener model can simulate the dynamic nonlinearity of this Doherty PA more accurately than the memory polynomial model.

Published in:

Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on  (Volume:3 )

Date of Conference:

21-24 April 2008