In this work, we report the formulation and an experimental validation of a behavioral electro-thermal model for radio-frequency (RF) Power Amplifiers (PA). Sensitivity functions with respect to an equivalent temperature are defined for the RF input-output and drain current characteristics, and then coupled with a quasi-static thermal equivalent network. The model is empirically identified with pulse-modulated RF signals and takes advantage of the possibility to impose and sense the case temperature of the PA. The presented model accurately predicts the influence of temperature on quasi-static and dynamic characteristics of an LDMOS PA.
An empirical behavioral model for RF PAs including self-heating / Gibiino, Gian Piero; Cappello, Tommaso; Niessen, Daniel; Schreurs, Dominique M. M.-P.; Santarelli, Alberto; Filicori, Fabio. - CD-ROM. - (2015), pp. 7330367.1-7330367.3. (Intervento presentato al convegno International Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits, INMMiC 2015 tenutosi a ita nel 2015) [10.1109/INMMIC.2015.7330367].
An empirical behavioral model for RF PAs including self-heating
GIBIINO, GIAN PIERO;CAPPELLO, TOMMASO;NIESSEN, DANIEL;SANTARELLI, ALBERTO;FILICORI, FABIO
2015
Abstract
In this work, we report the formulation and an experimental validation of a behavioral electro-thermal model for radio-frequency (RF) Power Amplifiers (PA). Sensitivity functions with respect to an equivalent temperature are defined for the RF input-output and drain current characteristics, and then coupled with a quasi-static thermal equivalent network. The model is empirically identified with pulse-modulated RF signals and takes advantage of the possibility to impose and sense the case temperature of the PA. The presented model accurately predicts the influence of temperature on quasi-static and dynamic characteristics of an LDMOS PA.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
