Time-Domain Analysis of Surface Acoustic Wave Magnetoelectric Sensors
Abstract
The transient response of surface acoustic wave sensors is important for understanding their dynamic behavior, propagation delay, and response to time-varying signals. In this work, the time-domain propagation characteristics of a magnetoelectric SAW sensor based on a multilayer Love-wave delay line are investigated using complementary numerical and experimental approaches. Time-domain analysis is employed to determine the delay time and to extract the phase and group velocities, while frequency-domain analysis provides an independent characterization of the wave dispersion. Both numerically and experimentally, the phase and group velocities are found to differ, reflecting the dispersion of the Love wave in the multilayer structure. At the operating frequency of 146 MHz, the simulated group velocity obtained from wave-field tracking agrees within 0.4% with the value determined from the frequency-domain dispersion relation. The simulated delay time and group velocity also show good agreement with experiment, with deviations of 2.7% in delay time and 0.9% in group velocity. These results demonstrate the consistency of the time- and frequency-domain analyses and provide a quantitative characterization of the transient propagation behavior of SAW sensors.
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BibTeX
@misc{samadi2026timedomain,
title = {{Time-Domain Analysis of Surface Acoustic Wave Magnetoelectric Sensors}},
author = {Mohsen Samadi and Henrik Wolframm and Felix Weisheit and Dirk Meyners and Eckhard Quandt and Michael Höft and Martina Gerken},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.11421},
eprint = {2610.11421},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.11421},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Time-Domain Analysis of Surface Acoustic Wave Magnetoelectric Sensors
AU - Mohsen Samadi
AU - Henrik Wolframm
AU - Felix Weisheit
AU - Dirk Meyners
AU - Eckhard Quandt
AU - Michael Höft
AU - Martina Gerken
PY - 2026
DA - 2026/10/08
PB - arXiv
DO - 10.48550/arxiv.2610.11421
UR - https://arxiv.org/abs/2610.11421
AB - The transient response of surface acoustic wave sensors is important for understanding their dynamic behavior, propagation delay, and response to time-varying signals. In this work, the time-domain propagation characteristics of a magnetoelectric SAW sensor based on a multilayer Love-wave delay line are investigated using complementary numerical and experimental approaches. Time-domain analysis is employed to determine the delay time and to extract the phase and group velocities, while frequency-domain analysis provides an independent characterization of the wave dispersion. Both numerically and experimentally, the phase and group velocities are found to differ, reflecting the dispersion of the Love wave in the multilayer structure. At the operating frequency of 146 MHz, the simulated group velocity obtained from wave-field tracking agrees within 0.4% with the value determined from the frequency-domain dispersion relation. The simulated delay time and group velocity also show good agreement with experiment, with deviations of 2.7% in delay time and 0.9% in group velocity. These results demonstrate the consistency of the time- and frequency-domain analyses and provide a quantitative characterization of the transient propagation behavior of SAW sensors.
ER -