IEICE TRANSACTIONS on Electronics
Nonlinear Compensation Technologies for Microwave Power Amplifiers in Radio Communication Systems
Summary :
Technologies used to characterize and compensate nonlinearities in microwave power amplifiers are discussed. First, a complex power series representation that allows both amplitude and phase nonlinearities to be dealt with simultaneously is proposed, and in order to estimate the 3rd-order complex coefficient phase of practical amplifiers, two kinds of experimental measurement methods are proposed. Next, the fundamental circuit configuration of IF cuber predistortion linearizer that compensates 3rd-order intermodulation distortion is derived from a nonlinear analysis using complex power series representation. Two practical cuber predistorters for the 6-GHz TWTA and the 800-MHz FET-PA are demonstrated. Moreover, the unique nonlinear compensation technology of side-band inversion is introduced for microwave relay system using TWTAs. Finally, the self-adjusting feed-forward (SAFF)-PA developed for digital cellular base stations is reviewed.
- Publication
- IEICE TRANSACTIONS on Electronics Vol.E82-C No.5 pp.679-686
- Publication Date
- 1999/05/25
- Publicized
- Online ISSN
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- Type of Manuscript
- Special Section PAPER (Special Issue on Low Distortion Technology for Microwave Devices and Circuits)
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Toshio NOJIMA, "Nonlinear Compensation Technologies for Microwave Power Amplifiers in Radio Communication Systems" in IEICE TRANSACTIONS on Electronics,
vol. E82-C, no. 5, pp. 679-686, May 1999, doi: .
Abstract: Technologies used to characterize and compensate nonlinearities in microwave power amplifiers are discussed. First, a complex power series representation that allows both amplitude and phase nonlinearities to be dealt with simultaneously is proposed, and in order to estimate the 3rd-order complex coefficient phase of practical amplifiers, two kinds of experimental measurement methods are proposed. Next, the fundamental circuit configuration of IF cuber predistortion linearizer that compensates 3rd-order intermodulation distortion is derived from a nonlinear analysis using complex power series representation. Two practical cuber predistorters for the 6-GHz TWTA and the 800-MHz FET-PA are demonstrated. Moreover, the unique nonlinear compensation technology of side-band inversion is introduced for microwave relay system using TWTAs. Finally, the self-adjusting feed-forward (SAFF)-PA developed for digital cellular base stations is reviewed.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_5_679/_p
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@ARTICLE{e82-c_5_679,
author={Toshio NOJIMA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Nonlinear Compensation Technologies for Microwave Power Amplifiers in Radio Communication Systems},
year={1999},
volume={E82-C},
number={5},
pages={679-686},
abstract={Technologies used to characterize and compensate nonlinearities in microwave power amplifiers are discussed. First, a complex power series representation that allows both amplitude and phase nonlinearities to be dealt with simultaneously is proposed, and in order to estimate the 3rd-order complex coefficient phase of practical amplifiers, two kinds of experimental measurement methods are proposed. Next, the fundamental circuit configuration of IF cuber predistortion linearizer that compensates 3rd-order intermodulation distortion is derived from a nonlinear analysis using complex power series representation. Two practical cuber predistorters for the 6-GHz TWTA and the 800-MHz FET-PA are demonstrated. Moreover, the unique nonlinear compensation technology of side-band inversion is introduced for microwave relay system using TWTAs. Finally, the self-adjusting feed-forward (SAFF)-PA developed for digital cellular base stations is reviewed.},
keywords={},
doi={},
ISSN={},
month={May},}
Copy
TY - JOUR
TI - Nonlinear Compensation Technologies for Microwave Power Amplifiers in Radio Communication Systems
T2 - IEICE TRANSACTIONS on Electronics
SP - 679
EP - 686
AU - Toshio NOJIMA
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 5
JA - IEICE TRANSACTIONS on Electronics
Y1 - May 1999
AB - Technologies used to characterize and compensate nonlinearities in microwave power amplifiers are discussed. First, a complex power series representation that allows both amplitude and phase nonlinearities to be dealt with simultaneously is proposed, and in order to estimate the 3rd-order complex coefficient phase of practical amplifiers, two kinds of experimental measurement methods are proposed. Next, the fundamental circuit configuration of IF cuber predistortion linearizer that compensates 3rd-order intermodulation distortion is derived from a nonlinear analysis using complex power series representation. Two practical cuber predistorters for the 6-GHz TWTA and the 800-MHz FET-PA are demonstrated. Moreover, the unique nonlinear compensation technology of side-band inversion is introduced for microwave relay system using TWTAs. Finally, the self-adjusting feed-forward (SAFF)-PA developed for digital cellular base stations is reviewed.
ER -
English
