Computationally Efficient 2-D Predistortion for Multi-Carrier Envelope Tracking Power Amplifiers

Paul J. Draxler, Anjali Sharma,Dane Malangone,Donald E. Cowles,Eric Brown,Jonmei J. Yan

MILCOM 2021 - 2021 IEEE Military Communications Conference (MILCOM)（2021）

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摘要

An efficient, model based, digital predistortion (DPD) is presented for high efficiency wide bandwidth envelope tracking (ET) power amplifiers (ETPA) with multi-carrier results. This ET configuration is specifically designed for wideband carrier aggregation (CA) signals that have >200MHz bandwidth and high peak to average ratio. The DPD is based on a new formulation of the inverse RFPA surface ...

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关键词

Degradation,Transmitters,Computational modeling,Matching pursuit algorithms,Signal processing algorithms,Peak to average power ratio,Real-time systems

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