Role of metal electrodes in the generation of thirdorder nonlinearities in TC-SAW devices

Titelangaben

Chauhan, Vikrant ; Weigel, Robert ; Hagelauer, Amelie ; Mayer, Markus ; Ruile, Werner ; Ebner, Thomas ; Bleyl, Ingo ; Wagner, Karl C. ; Mayer, Elena ; Mayer, Andreas:
Role of metal electrodes in the generation of thirdorder nonlinearities in TC-SAW devices.
In: 2017 IEEE International Ultrasonics Symposium. - Piscataway, NJ : IEEE , 2017
ISBN 978-1-5386-3383-0
DOI: https://doi.org/10.1109/ULTSYM.2017.8091770

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Abstract

The growing complexity in RF front-ends, which support carrier aggregation and a growing number of frequency bands, leads to tightened nonlinearity requirements in all sub-components. The generation of third order intermodulation products (IMD3) are typical problems caused by the non-linearity of SAW devices. In the present work, we investigate temperature compensating (TC) SAW devices on Lithium Niobate-rot128YX. An accurate FEM simulation model 1 is employed, which allows to better understand the origin of nonlinearities in such acoustic devices.