Výsledky vyhledávání

Longitudinal leaky SAW resonators and filters on YZ-LiNbO/sub 3

Autor: W. Steichen, Victor Plessky, V.I. Grigorievski, M.M. Salomaa, T. Makkonen, M. Solal

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 53:393-401

The high-phase velocity (above 6100 m/s in and aluminum (Al) grating on lithium niobate (LiNbO/sub 3/)) of the longitudinal leaky surface acoustic wave (SAW) (LLSAW) mode makes it attractive for application in high-frequency SAW ladder filters in the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::60a52756bd17b3e31d03c2f1e00bab3a
https://doi.org/10.1109/tuffc.2006.1593378

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Simulations of surface acoustic wave devices built on stratified media using a mixed finite element/boundary integral formulation

Autor: Alexandre Reinhardt, S. Camou, William Daniau, P. Ventura, R. Lardat, W. Steichen, Vincent Laude, Abdelaziz Soufyane, Marc Solal, T. Pastureaud, Sylvain Ballandras

Publikováno v: Journal of Applied Physics. 96:7731-7741

The demand for high frequency surface acoustic wave devices for modern telecommunication applications imposes the development of devices able to answer the manufacturer requirements. The use of high velocity substrates for which a piezoelectric layer

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e65f8f32bce4615778a702f6560b55df
https://doi.org/10.1063/1.1758317

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Finite-element analysis of periodic piezoelectric transducers

Autor: R. Lardat, Vincent Laude, Sylvain Ballandras, M. Wilm, W. Steichen, Abdelaziz Soufyane, Paul-Francis Edoa

Publikováno v: Journal of Applied Physics. 93:702-711

The need for optimized acoustic transducers for the development of high-quality imaging probes requires efficient simulation tools providing reliable descriptions of the behavior of real devices. The purpose of this work is the implementation of a fi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::685c0448e4d149e786cf58a93d5df380
https://doi.org/10.1063/1.1524711

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Tunable Solidly Mounted Thin Film Bulk Acoustic Resonators Based on Ba$_{x}{{\hbox{Sr}}_{1-x}}{\hbox{TiO}}_{3}$ Films

Autor: Spartak Gevorgian, Andrei Vorobiev, W.. Steichen, John Berge

Publikováno v: IEEE Microwave and Wireless Components Letters. 17:655-657

Electrically tunable solidly mounted thin film bulk acoustic resonators based on BaxSr1-xTiO3 films are reported for the first time. The films are acoustically isolated from the silicon substrate by a Bragg reflector stack. Applying DC bias induces p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fc6b6d27a7a3b1041ce3931953a91b63
https://doi.org/10.1109/lmwc.2007.903445

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Fundamental mode 5 GHz surface-acoustic-wave filters using optical lithography

Autor: Victor Plessky, C. Poirel, M.M. Salomaa, W. Steichen, Marc Solal, T. Makkonen, Stéphane Chamaly

Publikováno v: Applied Physics Letters. 83:3596-3598

Resonators and bandpass filters have been implemented in the 5 GHz frequency range, based on “longitudinal leaky” surface-acoustic waves on standard YZ-cut lithium niobate substrate. The synchronous one-port resonators constituting a ladder filte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d898e5bf10fbc01c1631ac199df9d98a
https://doi.org/10.1063/1.1618366

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A coupling procedure for modeling acoustic problems using finite elements and boundary elements

Autor: J.P. Coyette, W. Steichen, G. Vanderborck

Publikováno v: Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1994, 04 (C5), pp.C5-331-C5-334. ⟨10.1051/jp4:1994568⟩

Finite element (FEM) and boundary element (BEM) methods have been used for a long time for the numerical simulation of acoustic problems. The development presented in this paper deals with a general procedure for coupling acoustic finite elements wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a1396f05a1affb461ecdfc6af9b23a0
https://doi.org/10.1051/jp4:1994568

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Hybrid resonant structures for wireless sensor applications

Autor: Sylvain Ballandras, Paul Muralt, W. Steichen, Lionel Fagot-Revurat, Jeremy Masson, Alvaro Artieda

Publikováno v: IEEE International Frequency Control Symposium
Meeting of the 23rd European Frequency and Time Forum/IEEE International Frequency Control Symposium
Meeting of the 23rd European Frequency and Time Forum/IEEE International Frequency Control Symposium, Apr 2009, Besançon, France. pp.85-89, ⟨10.1109/FREQ.2009.5168147⟩

International audience; In this work, we report on an original approach for increasing the coupling factor of Harmonic Bulk Acoustic Resonators (HBARs). It consists in adding a layer onto the top electrode to optimize the operation of the device. We

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a78e74f5a66a704e8975c6d7ddf30f5
http://hdl.handle.net/20.500.12278/36460

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A mixed finite element/boundary element approach to simulate complex guided elastic wave periodic transducers

Autor: N. Champavert, Th. Pastureaud, R. Armati, Alexandre Reinhardt, William Daniau, M. Wilm, R. Lardat, Vincent Laude, Sylvain Ballandras, W. Steichen, Gilles Martin

Publikováno v: Journal of Applied Physics
Journal of Applied Physics, American Institute of Physics, 2009, 105 (1), pp.014911. ⟨10.1063/1.3021307⟩
Journal of Applied Physics, 2009, 105 (1), pp.014911. ⟨10.1063/1.3021307⟩

International audience; The development of new surface acoustic wave devices exhibiting complicated electrode patterns or layered excitation transducers has been favored by an intense innovative activity in this area. For instance, devices exhibiting

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7729b9a0dcc77d3a90e5c792ca3ba521
https://hal.archives-ouvertes.fr/hal-00429462

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Composants acoustiques utilisés pour le filtrage - Revue des différentes technologies

Autor: W. Steichen, Sylvain Ballandras

Publikováno v: Électronique.

La notion de filtrage electrique est apparue avec les premiers systemes de communication utilisant des bandes spectrales tres etroites. Dans les annees 1910, les premiers ingenieurs radioelectriciens envisagent la possibilite de transmettre plusieurs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d21cdda25b841a50748d7f66d7927c2
https://doi.org/10.51257/a-v1-e2000

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P3J-2 Laser-Interferometric Analysis of Rayleigh Wave Radiation from a LLSAW Resonator

Autor: O. Holmgren, T. Makkonen, Victor Plessky, J.V. Knuuttila, W. Steichen

Publikováno v: 2007 IEEE Ultrasonics Symposium Proceedings.

Rayleigh wave side radiation from a synchronous 1.6 GHz longitudinal leaky SAW (LLSAW) resonator on YZ-LiNbO3 substrate is studied in this paper. Acoustic wave fields measured from the LLSAW resonator using a scanning laser interferometer are present

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d619b24e0bef4256a97e1cddee05928
https://doi.org/10.1109/ultsym.2007.479

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