Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tsuyoshi Oura0
Satoshi Orito0
Tohru Takezaki0
Toshifumi Tanaka0
Hirotada Wachi0
Koichi Wada0
Satoshi Ichikawa0
Date of Patent
December 26, 2006
Patent Application Number
10950975
Date Filed
September 28, 2004
Patent Primary Examiner
Patent abstract
A filter includes a piezoelectric substrate, and interdigital transducers (IDTs) that are formed on the piezoelectric substrate. At least one of the IDTs has a main electrode finger pattern that is weighted. The IDT having the main electrode finger pattern also has a sub electrode finger pattern that is connected in parallel to the main electrode finger pattern, and generates a surface acoustic wave that cancels a surface acoustic wave caused by leakage electric fields generated in the main electrode finger pattern.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
