Akstaller W, Weigel R, Hagelauer AM (2020)
Publication Language: English
Publication Status: Published
Publication Type: Journal article, Original article
Future Publication Type: Journal article
Publication year: 2020
Book Volume: 67
Pages Range: 2423-2432
Journal Issue: 11
DOI: 10.1109/TUFFC.2020.2999545
In this article an electrothermal modeling approach of Surface Acoustic Wave (SAW) resonators and filters is presented. The starting point for the model is a preliminary design that has to be assessed for thermal aspects. Due to the high geometrical complexity of SAW components simplifications are elaborated and qualified on resonator and filter level to prepare the design for a thermal simulation. A thermal model is created and simulated in a finite element method environment. The simulated behavior is exported as a thermal impedance and implemented in a circuit model of a SAW filter. The layout’s electromagnetic behavior is taken into account. Electrothermal models of the SAW resonators and the busbars are developed. The interface to the thermal impedance is achieved by the use of electrothermal ports. The dynamic effect of frequency shift is included. A verification is done by a comparison of the temperature increase of a resonator in a filter test structure to a corresponding simulation model. The filter is excited by a radio frequency large signal and the temperature is detected by the use of a resistive temperature sensor. A simulation that shows the impact of mutual heating between the resonators in a filter environment is performed.
APA:
Akstaller, W., Weigel, R., & Hagelauer, A.M. (2020). Electrothermal Modeling of Surface Acoustic Wave Resonators and Filters. IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control, 67(11), 2423-2432. https://dx.doi.org/10.1109/TUFFC.2020.2999545
MLA:
Akstaller, Wolfgang, Robert Weigel, and Amelie Marietta Hagelauer. "Electrothermal Modeling of Surface Acoustic Wave Resonators and Filters." IEEE Transactions on Ultrasonics Ferroelectrics and Frequency Control 67.11 (2020): 2423-2432.
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