Memory effect evaluation and predistortion of power amplifiers

by: P Draxler, J Deng, D Kimball, I Langmore, PM Asbeck

Microwave Symposium Digest, 2005 IEEE MTT-S International (2005), 4 pp..

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Abstract

This paper introduces the envelope model reference adaptive control construct to digital predistortion of RF power amplifiers. It is used to formulate a block level predistortion algorithm that compensates for the both memoryless compression characteristics and deterministic memory effects. An iterative technique of successive approximations is used to obtain the memory effect inverse function. The algorithm is applied to two amplifiers and convergence is demonstrated. Qualitative results (instantaneous input/output plots) and quantitative results (the sequence and ensemble RMS error over the iteration sequence) are presented.

@inproceedings{05-Draxler, abstract = {This paper introduces the envelope model reference adaptive control construct to digital predistortion of RF power amplifiers. It is used to formulate a block level predistortion algorithm that compensates for the both memoryless compression characteristics and deterministic memory effects. An iterative technique of successive approximations is used to obtain the memory effect inverse function. The algorithm is applied to two amplifiers and convergence is demonstrated. Qualitative results (instantaneous input/output plots) and quantitative results (the sequence and ensemble RMS error over the iteration sequence) are presented.}, author = {Draxler, P. and Deng, J. and Kimball, D. and Langmore, I. and Asbeck, P. M. }, booktitle = {Microwave Symposium Digest, 2005 IEEE MTT-S International}, citeulike-article-id = {2755116}, doi = {10.1109/MWSYM.2005.1516993}, journal = {Microwave Symposium Digest, 2005 IEEE MTT-S International}, keywords = {dpd, memory}, pages = {4 pp.+}, posted-at = {2008-05-05 05:30:19}, priority = {2}, title = {Memory effect evaluation and predistortion of power amplifiers}, url = {http://dx.doi.org/10.1109/MWSYM.2005.1516993}, year = {2005} }

RIS record

TY - CONF ID - 05-Draxler L3 - citeulike-article-id:2755116 TI - Memory effect evaluation and predistortion of power amplifiers T2 - Microwave Symposium Digest, 2005 IEEE MTT-S International JF - Microwave Symposium Digest, 2005 IEEE MTT-S International SP - 4 pp. N2 - This paper introduces the envelope model reference adaptive control construct to digital predistortion of RF power amplifiers. It is used to formulate a block level predistortion algorithm that compensates for the both memoryless compression characteristics and deterministic memory effects. An iterative technique of successive approximations is used to obtain the memory effect inverse function. The algorithm is applied to two amplifiers and convergence is demonstrated. Qualitative results (instantaneous input/output plots) and quantitative results (the sequence and ensemble RMS error over the iteration sequence) are presented. KW - dpd KW - memory AU - Draxler, P AU - Deng, J AU - Kimball, D AU - Langmore, I AU - Asbeck, PM PY - 2005/// UR - http://dx.doi.org/10.1109/MWSYM.2005.1516993 ER -

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