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
Intraoral camera for dental chairs
2,5-disubstituted piperidine orexin receptor antagonists
Parasitic element compensation circuit and method for compensating for the parasitic element
Medicament container
Radio communication system, base station device and mobile station device utilizing an intermittent reception
Downlink scheduling in fractional frequency reuse (FFR) systems
  Randomly Featured Patents
Apparatus and method for processing analog and digital signals from multiple signal sources
Apparatus for use with endoscopy and fluoroscopy for automatic switching between video modes
Double-walled pleated curtain
Data repository and method for promoting network storage of data
Fluidized bed incinerator
Hetero type pentamer recombinant vaccine
Fin box for a water sports board and method of installation
Process for coking high-boiling aromatic hydrocarbon mixtures to form carbon materials having constant properties
Tamper-proof carton and method for using same in retailing food and drug products
Topside spring tension adjuster for bass drum pedals with variable pivot point spring rotor