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The Journal of the Acoustical Society of America, 2003
A surface-acoustic-wave device comprises a piezoelectric substrate and first and second comb-shaped electrodes each having a bus-bar portion parallel to a propagation direction of a surface acoustic wave in the substrate. Respective electrode fingers are periodically formed on the piezoelectric substrate and extend in directions perpendicular to the ...
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A surface-acoustic-wave device comprises a piezoelectric substrate and first and second comb-shaped electrodes each having a bus-bar portion parallel to a propagation direction of a surface acoustic wave in the substrate. Respective electrode fingers are periodically formed on the piezoelectric substrate and extend in directions perpendicular to the ...
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The Journal of the Acoustical Society of America, 2009
A measuring method using a surface acoustic wave device, with which even in a case where a target substance having a different viscosity is added to a buffer liquid on the surface acoustic wave device it is possible to measure a mass load accurately without suffering an effect of this viscous load, and it is also possible to shorten the time taken for ...
Atsushi Itoh, Motoko Ichihashi
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A measuring method using a surface acoustic wave device, with which even in a case where a target substance having a different viscosity is added to a buffer liquid on the surface acoustic wave device it is possible to measure a mass load accurately without suffering an effect of this viscous load, and it is also possible to shorten the time taken for ...
Atsushi Itoh, Motoko Ichihashi
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Surface acoustic wave microfluidic device
IEEE Ultrasonics Symposium, 2005., 2006Microfluidic systems can be implemented for miniaturization of chemical and biological processes on a sub- millimeter scale. In this study, Surface Acoustic Waves (SAW) was used to actuate small droplet (from 2 to 20 µl) on planar surface of a piezoelectric substrate.
D. Beyssen +3 more
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Practical surface acoustic wave devices
Proceedings of the IEEE, 1974A tutorial discussion is presented on selected surface acoustic wave (SAW) devices for the use of engineers and electronic systems designers. Currently practical components for use in radar systems, communications systems, and as frequency domain filters are described.
M.G. Holland, L.T. Claiborne
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Thermal characterization of Surface Acoustic Wave devices
2013 IEEE International Ultrasonics Symposium (IUS), 2013Reliability of micro-electronic devices is one of the most important issues in mobile communication systems and is significantly influenced by the thermal behavior of the components. This study presents different schemes for thermal characterization of a half-section ladder-type Surface Acoustic Wave (SAW) filter which is acoustically passivated with a
Huck, C. +4 more
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Continuous-wave surface-acoustic-wave delay-difference device
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1989A novel surface-acoustic-wave (SAW) device for continuous-wave (CW) delay-difference measurement or wideband interference-rejection at VHF frequencies is described and test results are given. The delay-difference device (DDD) operates at a center frequency of 160 MHz with a 31-MHz bandwidth over which root-mean-square amplitude ripple is 0.13 dB and ...
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The Journal of the Acoustical Society of America, 2007
A surface acoustic wave element includes a thin film electrode composed of monocrystal aluminum disposed on a piezoelectric substrate. At least one metal of Cu, Ta, W, and Ti is segregated in the thin film electrode composed of monocrystal aluminum. In this surface acoustic wave element, segregation of Cu or the like occurs in the thin film electrode ...
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A surface acoustic wave element includes a thin film electrode composed of monocrystal aluminum disposed on a piezoelectric substrate. At least one metal of Cu, Ta, W, and Ti is segregated in the thin film electrode composed of monocrystal aluminum. In this surface acoustic wave element, segregation of Cu or the like occurs in the thin film electrode ...
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The Journal of the Acoustical Society of America, 2008
A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and receives the propagated surface wave.
Noritaka Nakaso, Kazushi Yamanaka
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A surface acoustic wave device includes a three-dimensional substrate having an annular curved surface enabling to propagate a surface acoustic wave, and an electro-acoustic transducing element, which excites and propagates the surface wave along the surface, and receives the propagated surface wave.
Noritaka Nakaso, Kazushi Yamanaka
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Surface acoustic wave device fabrication.
The Journal of the Acoustical Society of America, 1996Many frequency control operations for wireless and satellite communication systems are provided by acoustic solid-state devices in the operating frequency range from 10 MHz to 3 GHz. Surface acoustic wave (SAW) device technology is a key technology because it is solid state, monolithic, high performance, and low cost.
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