Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers

Felice Francesco Tafuri, Torben Larsen

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

6 Citations (Scopus)

Abstract

This paper deals with behavioral modeling of power amplifiers (PAs) for envelope tracking (ET) applications. In such a scenario, the power supply modulation brings in several additional challenges for the system design and, similarly, it becomes more difficult to obtain an accurate and general PA model. This work addresses these modeling challenges proposing a solution to improve model accuracy and generality including the modulated supply voltage Venv as an independent variable. The model typology proposed in this work is in the form of an equivalent baseband behavioral model and it is achieved extending the well-known Cann model. The Cann model is extended including the modulated supply voltage Venv as a new independent variable, enhancing the AM/AM model so that it can mimic PA memory effects and defining a dynamic nonlinear AM/PM function that can model the phase distortions introduced by the ET operation. The model performance is tested modeling data-sets acquired from an ET test bench including a commercial RFMD PA and an envelope modulator designed using a commercial IC from TI.
Original languageEnglish
Title of host publicationIntelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on
PublisherIEEE
Publication date15 Nov 2013
Pages670 - 673
ISBN (Print)978-1-4673-6360-0
DOIs
Publication statusPublished - 15 Nov 2013
Event2013 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2013) - Okinawa Jichi-Kaikan, Naha, Okinawa, Japan
Duration: 12 Nov 201315 Nov 2013

Conference

Conference2013 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2013)
LocationOkinawa Jichi-Kaikan
CountryJapan
CityNaha, Okinawa
Period12/11/201315/11/2013

Fingerprint

Power amplifiers
Electric potential
Modulators
Data structures
Systems analysis
Modulation
Data storage equipment

Cite this

Tafuri, F. F., & Larsen, T. (2013). Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers. In Intelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on (pp. 670 - 673). IEEE. https://doi.org/10.1109/ISPACS.2013.6704633
Tafuri, Felice Francesco ; Larsen, Torben. / Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers. Intelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on . IEEE, 2013. pp. 670 - 673
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abstract = "This paper deals with behavioral modeling of power amplifiers (PAs) for envelope tracking (ET) applications. In such a scenario, the power supply modulation brings in several additional challenges for the system design and, similarly, it becomes more difficult to obtain an accurate and general PA model. This work addresses these modeling challenges proposing a solution to improve model accuracy and generality including the modulated supply voltage Venv as an independent variable. The model typology proposed in this work is in the form of an equivalent baseband behavioral model and it is achieved extending the well-known Cann model. The Cann model is extended including the modulated supply voltage Venv as a new independent variable, enhancing the AM/AM model so that it can mimic PA memory effects and defining a dynamic nonlinear AM/PM function that can model the phase distortions introduced by the ET operation. The model performance is tested modeling data-sets acquired from an ET test bench including a commercial RFMD PA and an envelope modulator designed using a commercial IC from TI.",
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Tafuri, FF & Larsen, T 2013, Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers. in Intelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on . IEEE, pp. 670 - 673, 2013 International Symposium on Intelligent Signal Processing and Communication Systems (ISPACS 2013), Naha, Okinawa, Japan, 12/11/2013. https://doi.org/10.1109/ISPACS.2013.6704633

Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers. / Tafuri, Felice Francesco; Larsen, Torben.

Intelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on . IEEE, 2013. p. 670 - 673.

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

TY - GEN

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N2 - This paper deals with behavioral modeling of power amplifiers (PAs) for envelope tracking (ET) applications. In such a scenario, the power supply modulation brings in several additional challenges for the system design and, similarly, it becomes more difficult to obtain an accurate and general PA model. This work addresses these modeling challenges proposing a solution to improve model accuracy and generality including the modulated supply voltage Venv as an independent variable. The model typology proposed in this work is in the form of an equivalent baseband behavioral model and it is achieved extending the well-known Cann model. The Cann model is extended including the modulated supply voltage Venv as a new independent variable, enhancing the AM/AM model so that it can mimic PA memory effects and defining a dynamic nonlinear AM/PM function that can model the phase distortions introduced by the ET operation. The model performance is tested modeling data-sets acquired from an ET test bench including a commercial RFMD PA and an envelope modulator designed using a commercial IC from TI.

AB - This paper deals with behavioral modeling of power amplifiers (PAs) for envelope tracking (ET) applications. In such a scenario, the power supply modulation brings in several additional challenges for the system design and, similarly, it becomes more difficult to obtain an accurate and general PA model. This work addresses these modeling challenges proposing a solution to improve model accuracy and generality including the modulated supply voltage Venv as an independent variable. The model typology proposed in this work is in the form of an equivalent baseband behavioral model and it is achieved extending the well-known Cann model. The Cann model is extended including the modulated supply voltage Venv as a new independent variable, enhancing the AM/AM model so that it can mimic PA memory effects and defining a dynamic nonlinear AM/PM function that can model the phase distortions introduced by the ET operation. The model performance is tested modeling data-sets acquired from an ET test bench including a commercial RFMD PA and an envelope modulator designed using a commercial IC from TI.

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Tafuri FF, Larsen T. Extended Cann Model for Behavioral Modeling of Envelope Tracking Power Amplifiers. In Intelligent Signal Processing and Communications Systems (ISPACS), 2013 International Symposium on . IEEE. 2013. p. 670 - 673 https://doi.org/10.1109/ISPACS.2013.6704633