Results 271 to 280 of about 3,306,688 (343)

Comparative Study of Acoustic Wave Devices Using Thin Piezoelectric Plates in the 3–5-GHz Range

IEEE transactions on microwave theory and techniques, 2019
This paper investigates the applicability of acoustic wave devices using an interdigital transducer placed on a thin piezoelectric crystal plate to the 3–5-GHz range, where significant performance degradation was expected in surface acoustic wave (SAW ...
Tetsuya Kimura, Masashi Omura, Yutaka Kishimoto, K. Hashimoto   +3 more
semanticscholar   +1 more source

Surface acoustic wave resonators

European Transactions on Telecommunications, 1991
AbstractSurface Acoustic Wave (SAW) resonators are implemented by creating a planar resonant cavity, delimited by two distributed, rather than concentrated, mirrors, consisting of arrays of reflecting metal strips. SAW resonators permit to achieve higher frequencies than their bulk‐wave acoustic counterparts with comparable spectral purity and very ...
G. AVITABILE, L. ROSELLI, ATZENI, CARLO, MANES, GIANFRANCO   +3 more
openaire   +1 more source

Quantum control of surface acoustic-wave phonons

Nature, 2018
One of the hallmarks of quantum physics is the generation of non-classical quantum states and superpositions, which has been demonstrated in several quantum systems, including ions, solid-state qubits and photons. However, only indirect demonstrations of
K. Satzinger, K. Satzinger, Y. Zhong, Hung-Shen Chang, G. Peairs, G. Peairs, A. Bienfait, M. Chou, A. Cleland, C. Conner, É. Dumur, É. Dumur, J. Grebel, I. Gutierrez, B. November, R. Povey, S. Whiteley, D. Awschalom, D. Awschalom, D. Schuster, A. Cleland, A. Cleland   +21 more
semanticscholar   +1 more source

Microwave Acoustic Wave Devices: Recent Advances on Architectures, Modeling, Materials, and Packaging

IEEE transactions on microwave theory and techniques, 2018
This paper reviews applications of acoustic wave devices in mobile communication. After a general and historical introduction to bulk acoustic wave (BAW) and surface acoustic wave (SAW) devices, a review is given on the architectures where acoustic wave ...
A. Hagelauer, G. Fattinger, C. Ruppel, M. Ueda, K. Hashimoto, A. Tag   +5 more
semanticscholar   +1 more source

Acoustic emission wave classification for rail crack monitoring based on synchrosqueezed wavelet transform and multi-branch convolutional neural network

Structural Health Monitoring, 2020
This study focuses on the acoustic emission wave classification for the sake of more accurate and comprehensive rail crack monitoring in the field typically with complex cracking conditions, high-operational noise, and mass data.
Dan Li, Yang Wang, W. Yan, W. Ren
semanticscholar   +1 more source

Solitary surface acoustic waves

Physical Review E, 2004
Solitary acoustic pulses can propagate along the surface of a coated homogeneous and inhomogeneous medium. It is shown how these nonlinear surface acoustic waves evolve out of initial pulselike conditions generated by pulsed laser excitation and how they can be monitored by optical detection. The solitary pulse shapes at the surface are computed on the
C, Eckl, A S, Kovalev, A P, Mayer, A M, Lomonosov, P, Hess   +4 more
openaire   +2 more sources

Acoustic Surface Wave Filters

1970 Ultrasonics Symposium, 1970
Acoustic surface waves offer several advantages in the construction of delay lines and filters in the UHF range. In these devices the frequency response is determined by the finger spacing and overlap of the interdigital comb structures used as input and output transducers.
R.H. Tancrell, M.G. Holland
openaire   +1 more source

Dust acoustic shock waves

Physical Review E, 2004
It is shown that nonlinear equations governing the dynamics of large amplitude nondispersive dust acoustic waves admit nonstationary dust acoustic shock waves. Analytical and numerical results for the latter are presented, and the relevance of our investigation to laboratory experiments is discussed.
B, Eliasson, P K, Shukla
openaire   +2 more sources

Diffusing acoustic wave spectroscopy

Physical Review E, 2002
We have developed a technique in ultrasonic correlation spectroscopy called diffusing acoustic wave spectroscopy (DAWS). In this technique, the motion of the scatterers (e.g., particles or inclusions) is determined from the temporal fluctuations of multiply scattered sound.
M L, Cowan, I P, Jones, J H, Page, D A, Weitz   +3 more
openaire   +2 more sources

Redshift of acoustic waves in acoustic streaming

Physical Review E, 2003
Redshift, namely, the frequency decline in the frequency spectrum of an acoustic wave in water, was observed by measuring the frequency spectrum of acoustic streaming in a standing wave field. We desire that relations of the energy epsilon and momentum mu of acoustic waves analogous to those under quantum conditions hold, that is, epsilon =n(p)h(omega),
Masanori, Sato, Tsuyoshi, Matsuo, Toshitaka, Fujii   +2 more
openaire   +2 more sources