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2005•IEEE MTT-S International Microwave Symposium Digest, 2005.Requires access

Digital memory-based predistortion

S. McBeath, D.T. Pinckley

Open publisher page 4 citations

Abstract

A predistortion algorithm based on a memory-based power amplifier model (PA) is presented. The algorithm was tested using a PA measurement system. The predistortion techniques are based on the filtered tapped delay line (TDL) model. Memoryless predistortion techniques are also presented to show the benefits of the memory-based predistortion approach. Memoryless predistortion reduces third order IM by 5-8 dB, while memory-based predistortion reduces third order IM by 18-20 dB.

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What this paper is about

A predistortion algorithm based on a memory-based power amplifier model (PA) is presented. The algorithm was tested using a PA measurement system. The predistortion techniques are based on the filtered tapped delay line (TDL) model. Memoryless predistortion techniques are also presented to show the benefits of the memory-based predistortion approach. Memoryless predistortion reduces third order IM by 5-8 dB, while memory-based predistortion reduces third order IM by 18-20 dB.

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Available abstract

A predistortion algorithm based on a memory-based power amplifier model (PA) is presented. The algorithm was tested using a PA measurement system. The predistortion techniques are based on the filtered tapped delay line (TDL) model. Memoryless predistortion techniques are also presented to show the benefits of the memory-based predistortion approach. Memoryless predistortion reduces third order IM by 5-8 dB, while memory-based predistortion reduces third order IM by 18-20 dB.

Key concepts: Predistortion, Amplifier, Computer science, Electronic engineering, Power (physics), Engineering, Telecommunications, Bandwidth (computing)

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