WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function
A flexible and easily configurable software defined transmitter/receiver (TX/RX) architecture is described, which allows the determination of the distorted complex transfer characteristics of a 3 port nonlinear outphasing power amplifier (PA) for application in a WCDMA base station. The TX/RX archit...
| Main Authors: | , |
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| Format: | Article |
| Language: | deu |
| Published: |
Copernicus Publications
2006-01-01
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| Series: | Advances in Radio Science |
| Online Access: | http://www.adv-radio-sci.net/4/125/2006/ars-4-125-2006.pdf |
| _version_ | 1818358359350312960 |
|---|---|
| author | W. Gerhard R. Knöchel |
| author_facet | W. Gerhard R. Knöchel |
| author_sort | W. Gerhard |
| collection | DOAJ |
| description | A flexible and easily configurable software defined transmitter/receiver (TX/RX) architecture is described, which allows the determination of the distorted complex transfer characteristics of a 3 port nonlinear outphasing power amplifier (PA) for application in a WCDMA base station. The TX/RX architecture is capable of generating high precision single sideband signals (SSB) using a DSP algorithm, which is almost insensitive to measurement errors and to the frequency response of the output measurement channel. Based on this an inverse predistortion function for a necessary linearization is calculated and implemented into a FPGA (field programmable gate array) through look-up-tables (LUT). The common base band and the differential phase angles are predistorted, resulting in a linearization of the PA. |
| first_indexed | 2024-12-13T20:27:45Z |
| format | Article |
| id | doaj.art-a8ed4fb4956347b683335efaab05b92f |
| institution | Directory Open Access Journal |
| issn | 1684-9965 1684-9973 |
| language | deu |
| last_indexed | 2024-12-13T20:27:45Z |
| publishDate | 2006-01-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Advances in Radio Science |
| spelling | doaj.art-a8ed4fb4956347b683335efaab05b92f2022-12-21T23:32:31ZdeuCopernicus PublicationsAdvances in Radio Science1684-99651684-99732006-01-014125133WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion functionW. GerhardR. KnöchelA flexible and easily configurable software defined transmitter/receiver (TX/RX) architecture is described, which allows the determination of the distorted complex transfer characteristics of a 3 port nonlinear outphasing power amplifier (PA) for application in a WCDMA base station. The TX/RX architecture is capable of generating high precision single sideband signals (SSB) using a DSP algorithm, which is almost insensitive to measurement errors and to the frequency response of the output measurement channel. Based on this an inverse predistortion function for a necessary linearization is calculated and implemented into a FPGA (field programmable gate array) through look-up-tables (LUT). The common base band and the differential phase angles are predistorted, resulting in a linearization of the PA.http://www.adv-radio-sci.net/4/125/2006/ars-4-125-2006.pdf |
| spellingShingle | W. Gerhard R. Knöchel WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function Advances in Radio Science |
| title | WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function |
| title_full | WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function |
| title_fullStr | WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function |
| title_full_unstemmed | WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function |
| title_short | WCDMA outphasing power amplifier with a software defined transmitter/receiver architecture for determination of the predistortion function |
| title_sort | wcdma outphasing power amplifier with a software defined transmitter receiver architecture for determination of the predistortion function |
| url | http://www.adv-radio-sci.net/4/125/2006/ars-4-125-2006.pdf |
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