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
Systems, methods, and media for firewall control via remote system information
Chemically bonded carbon nanotube-polymer hybrid and nanocomposite thereof
Acrylic pressure-sensitive adhesive composition, acrylic pressure-sensitive adhesive layer, and acrylic pressure-sensitive adhesive tape
Non-volatile semiconductor memory and data processing method in non-volatile semiconductor memory
Processing biomass
Scalable pixel coverage function-map
Dual protocol input device
  Randomly Featured Patents
Hydrostatic test apparatus
Powder charge sleeve
Padded garment to prevent pressure sores and other injuries to hips and buttocks of immobilized persons
Torque takeout mechanism for rotary electronic part
Shingle stripper
System and method for preventing closure of passageways
Method for allocating channel resources in a distributed control channel system
Flexible packaging and the method of production
Seed coating containing Mn (NO.sub.3).sub.2 .multidot.6H.sub.2 O