Wave transmission lines and networks – Coupling networks – Electromechanical filter
Reexamination Certificate
2005-12-13
2005-12-13
Summons, Barbara (Department: 2817)
Wave transmission lines and networks
Coupling networks
Electromechanical filter
C333S189000, C333S191000, C310S357000, C029S025350
Reexamination Certificate
active
06975183
ABSTRACT:
A BAW resonator includes a first piezoelectric layer made of a material oriented toward a first direction, and a second piezoelectric layer made of a material oriented toward a second direction which is opposed to the first direction. The first piezoelectric layer and the second piezoelectric layer are acoustically coupled with each other.
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Aigner Robert
Handtmann Martin
Marksteiner Stephan
Nessler Winfried
Infineon - Technologies AG
Maginot Moore & Beck
Summons Barbara
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