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
Method for measuring and improving organization effectiveness
System and method for a TCP mapper
Method of making and using an alpha-glucanase composition to reduce or remove biofilm
Hybrid CMOS nanowire mesh device and PDSOI device
Automotive lighting system
Imidazole-5-carboxylic acid derivatives, the preparation method therefor and the uses thereof
DNA promoters and anthrax vaccines
  Randomly Featured Patents
Component mounting arrangement
Inhalation device
High-frequency circuit element having a superconductive resonator tuned by another movable resonator
Polymer/copper laminate and method for fabrication thereof
Diethanolamine salt of sulphamic acid as a curing accelerator for aminoplast resins
Hockey glove
Sampled amplitude read/write channel employing a sub-baud rate write clock
Programmable impedance output buffer drivers, semiconductor devices and static random access memories provided with a programmable impedance output port
Oscillating apparatus having variably controlled vibration cancellation
Fuel-fired heat pump system