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Alizadeh, Mahmoud
Publications (2 of 2) Show all publications
Alizadeh, M., Rönnow, D. & Händel, P. (2018). Characterization of Volterra Kernels for RF Power Amplifiers Using a Two-Tone Signal and a Large-Signal. In: 2018 12th International Conference on Communications, COMM 2018 - Proceedings: . Paper presented at 12th International Conference on Communications, COMM 2018, Bucharest, Romania, 14 June 2018 through 16 June 2018 (pp. 351-356). Institute of Electrical and Electronics Engineers (IEEE), Article ID 8430119.
Open this publication in new window or tab >>Characterization of Volterra Kernels for RF Power Amplifiers Using a Two-Tone Signal and a Large-Signal
2018 (English)In: 2018 12th International Conference on Communications, COMM 2018 - Proceedings, Institute of Electrical and Electronics Engineers (IEEE), 2018, p. 351-356, article id 8430119Conference paper, Published paper (Refereed)
Abstract [en]

The 3rd-order Volterra kernels of a radio frequency (RF) power amplifier (PA) are characterized using a large-signal and a two-tone probing-signal. In this technique, the magnitude and phase asymmetries of the kernels of the PA excited by the probing-signal are analyzed in different amplitude regions of the large-signal. The device under test is a class-AB PA operating at 2.14 GHz. The maximum sweeping frequency space of the probing-signal is 20 MHz. The results indicate that the Volterra kernels of the PA show different behaviors (frequency dependency and asymmetry) in different regions.

Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE), 2018
Series
IEEE International Conference on Communications, ISSN 1550-3607
Keywords
asymmetry, nonlinear dynamic RF power amplifier, two-tone test, volterra kernels
National Category
Signal Processing
Identifiers
urn:nbn:se:kth:diva-234489 (URN)10.1109/ICComm.2018.8430119 (DOI)000449526000066 ()2-s2.0-85052507435 (Scopus ID)9781538623503 (ISBN)
Conference
12th International Conference on Communications, COMM 2018, Bucharest, Romania, 14 June 2018 through 16 June 2018
Note

QC 20180907

Available from: 2018-09-07 Created: 2018-09-07 Last updated: 2019-01-11Bibliographically approved
Alizadeh, M., Rönnow, D. & Händel, P. (2017). A new Block-Structure Modeling Technique for RF Power Amplifiers in a 2×2 MIMO System. In: 2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2017 - Proceeding: . Paper presented at 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2017, Nis, Serbia, 18 October 2017 through 20 October 2017, (pp. 224-227). Nis, Serbia: IEEE, 2017
Open this publication in new window or tab >>A new Block-Structure Modeling Technique for RF Power Amplifiers in a 2×2 MIMO System
2017 (English)In: 2017 13th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2017 - Proceeding, Nis, Serbia: IEEE, 2017, Vol. 2017, p. 224-227Conference paper, Published paper (Refereed)
Abstract [en]

A new block-structure behavioral model is proposed for radio frequency power amplifiers in a 2×2 multiple-input multiple-output system including input cross-talk. The proposed model forms kernels of blocks of different nonlinear order that correspond to the significant frequency response of measured frequency domain Volterra kernels. The model can therefore well describe the input-output relationships of the nonlinear dynamic behavior of PAs. The proposed model outperforms conventional models in terms of model errors.

Place, publisher, year, edition, pages
Nis, Serbia: IEEE, 2017
Keywords
Nonlinear dynamic RF power amplifier, Volterra kernels, MIMO system, block-structural model
National Category
Signal Processing
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-241114 (URN)10.1109/TELSKS.2017.8246268 (DOI)2-s2.0-85045971319 (Scopus ID)9781538618004 (ISBN)
Conference
13th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2017, Nis, Serbia, 18 October 2017 through 20 October 2017,
Note

QC 220190114

Available from: 2019-01-11 Created: 2019-01-11 Last updated: 2019-05-02Bibliographically approved
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