The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Surface acoustic wave (SAW) devices are widely used as acoustic-electronic components today. The lithium niobate was often used as the substrate of SAW devices for its higher electromechanical coupling coefficient. In some applications like RFID tags and sensors, SAW devices have a long delay line and the energy loss of diffraction is considerable. Phononic crystals (PnC) have properties of band gaps...
Phononic crystal (PnC) in half-space allows anisotropic propagation and band gaps for surface acoustic wave (SAW) and promise applications such as filters and reflectors. For the feasible MEMS fabrication, a PnC comprised of cylindrical holes in a SiO2 layer covering a 128°rotated Y-cut LiNbO3 substrate was applied and the acoustic modes were analyzed numerically. The band gap for SAW was indicated...
Surface acoustic wave (SAW) devices were widely used today and applied as filters, sensors, and wireless RFID tags. In the cases which SAW has to propagate a long distance, the noticeable diffraction of surface waves limited the performance of SAW devices. Phononic crystal (PnC) consisting of periodic media is a new acoustic metamaterial. PnC structures perform anisotropic propagation and acoustic...
Phononic crystals (PnC) perform band gaps and promise applications such as filters and reflectors. Traditional PnC for surface acoustic waves (SAW) consisting of deep periodic holes in half space. To apply PnCs in SAW devices, the feasibility of fabrication was considered and layered PnCs were proposed. In this paper, a PnC comprised of cylindrical holes in a SiO2 layer covering a 128°rotated Y-cut...
In this paper, we propose a sensor array consisting of multiple quartz crystal microbalances (QCMs) surrounded by phononic crystals. Phononic crystals are utilized for isolating acoustic energy of individual bulk acoustic wave sensor and suppressing the interference. The resonance response of a QCM was calculated by finite element analysis. A square-lattice phononic crystal structure was designed...
In recent years, multiple bulk acoustic wave sensors have been fabricated on a single piezoelectric substrate to develop a sensor array for the detection of multiple analyte parameters. However, such an array may induce acoustic interference between adjacent sensors. Phononic crystals are synthetic structures with periodic variation of elastic property. A phononic crystal with band gaps forbids acoustic...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.