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Partition Analysis of DVR Model for Broadband GaN Doherty PA under Different Nonlinear States | IEEE Conference Publication | IEEE Xplore

Partition Analysis of DVR Model for Broadband GaN Doherty PA under Different Nonlinear States


Abstract:

In this paper, the partition distribution of the decomposed vector rotation (DVR) model is analyzed and discussed, a general rule of partition selection for PA under diff...Show More

Abstract:

In this paper, the partition distribution of the decomposed vector rotation (DVR) model is analyzed and discussed, a general rule of partition selection for PA under different nonlinear states are described. The AM/AM characteristic of an in-house designed GaN broadband Doherty power amplifier (DPA) is analyzed under different nonlinear conditions with different stimulus. The performance of the DVR model for the device under test (DUT) with different threshold values are compared and discussed. Comparison between the selected optimal DVR model based on the proposed general rule, the standard DVR model, and the Volterra series based models are given, superior performance is obtained, which demonstrates the efficacy of the proposed modeling approach.
Date of Conference: 27-29 November 2022
Date Added to IEEE Xplore: 26 April 2023
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Conference Location: Guangzhou, China

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