TY  - GEN
U1  - Sonstiges
A1  - Chauhan, Vikrant
A1  - Mayer, Andreas
A1  - Mayer, Elena
A1  - Ruile, Werner
A1  - Ebner, Thomas
T1  - Role of metal electrodes in the generation of third order nonlinearities in TC-SAW devices
T2  - 2017 IEEE International Ultrasonics Symposium (IUS)
N2  - In the present work, nonlinearities in temperature
compensating (TC) SAW devices are investigated. The materials
used are LiNbO3-rot128YX as the substrate and Copper electrodes covered with a SiO2-layer as the compensating layer.
In order to understand the role of these materials for the
nonlinearities in such acoustic devices, a FEM simulation model
in combination with a perturbation approach [1] is applied.
The nonlinear tensor data of the different materials involved
in TC-SAW devices have been taken from literature, but were
partially modified to fit experimental data by introducing scaling factors. An effective nonlinearity constant is determined
by comparison of nonlinear P-matrix simulations to IMD3
measurements of test filters. By employing these constants in
nonlinear periodic P-matrix simulations a direct comparison to
nonlinear periodic FEM-simulations yields the scaling factors for
the material used. Thus, the contribution of different materials
to the nonlinear behavior of TC-SAW devices is obtained and
the role of metal electrodes is discussed in detail
Y1  - 2017
UN  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bsz:ofb1-opus4-26656
U6  - https://dx.doi.org/10.1109/ULTSYM.2017.8092066
DO  - https://dx.doi.org/10.1109/ULTSYM.2017.8092066
SP  - 1
EP  - 1
S1  - 1
PB  - IEEE
CY  - Washington
ER  -