Resources Contact Us Home
Switchable tunable acoustic resonator using BST material

Image Number 5 for United States Patent #8130058.

An acoustic resonator includes a first electrode, a second electrode, and a barium strontium titanate (BST) dielectric layer disposed between the first electrode and the second electrode, where the acoustic resonator is switched on as a resonator with a resonant frequency if a DC (direct current) bias voltage is applied across the BST dielectric layer. The acoustic resonator is also switched off if no DC bias voltage is applied across the BST dielectric layer. Furthermore, the resonant frequency of the acoustic resonator can be tuned based on a level of the DC bias voltage, with the resonant frequency increasing as the level of the DC bias voltage applied to the BST acoustic resonator increases.

  Recently Added Patents
Implicit certificate scheme
Motor vehicle, toy and/or replica
Image stabilization
Performance apparatus and electronic musical instrument
Motilin-like peptide compound having transmucosal absorbability imparted thereto
Dynamic lookup service in a distributed system
Verification of computer-executable code generated from a model
  Randomly Featured Patents
Portable mobile unit for producing panels designed generally for building
Non-metabolizable clomiphene analogs for treatment of tamoxifen-resistant tumors
Split serial-parallel hybrid dual-power drive system
Peak detector circuit
Bale-sheathing device
Anaesthetic mask for babies
Apparatus having rotatable planar trays for culturing microorganisms
Article of wearing apparel suitable for controlling body perspiration
Process for producing vitamin B6
Process for preparing perhaloethers from perhaloolefins and new perhaloethers so obtained