Resources Contact Us Home
Switchable tunable acoustic resonator using BST material

Image Number 7 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
Handheld electronic device with text disambiguation employing advanced editing feature
Method and apparatus for variable accuracy inter-picture timing specification for digital video encoding
Tire for motorcycle
Near-field transducers for focusing light
Computer device with digitizer calibration system and method
Polypeptide microparticles
  Randomly Featured Patents
Variants in graphical modeling environments
Methods and apparatus for centering a log and for supplying a log to be centered
Cellular antenna
Benzyl sulfonamide derivatives useful as MOGAT-2 inhibitors
Magnetic disk apparatus, recording and accessing method for performing density recording
Processing apparatus and method of operation thereof
Network access mechanism and method
Receiving device for angle-modulated signals
Methods and apparatus for preventing unauthorized write access to a protected non-volatile storage