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Electrothermal Modeling of Surface Acoustic Wave Resonators and Filters

Titelangaben

Akstaller, Wolfgang ; Weigel, Robert ; Hagelauer, Amelie:
Electrothermal Modeling of Surface Acoustic Wave Resonators and Filters.
In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. Bd. 67 (2020) Heft 11 . - S. 2423-2432.
ISSN 1525-8955
DOI: https://doi.org/10.1109/TUFFC.2020.2999545

Volltext

Link zum Volltext (externe URL): Volltext

Abstract

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 levels to prepare the design for 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 bus bars are developed. The interface to the thermal impedance is achieved by the use of electrothermal ports. The dynamic effect of the frequency shift is included. 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.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Circuit simulation; Electrothermal modeling; Finite-element method (FEM); Surface acoustic wave (SAW) filter; Temperature-dependent frequency shift
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren > Lehrstuhl Kommunikationselektronik - Univ.-Prof. Dr.-Ing. Amélie Marietta Hagelauer
Fakultäten
Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Kommunikationselektronik
Fakultäten > Fakultät für Ingenieurwissenschaften > Ehemalige Professoren
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Eingestellt am: 20 Nov 2020 08:07
Letzte Änderung: 28 Apr 2022 09:33
URI: https://eref.uni-bayreuth.de/id/eprint/60037