Title:
SURFACE ACOUSTIC WAVE DEVICE
Document Type and Number:
Japanese Patent JP3683737
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To secure attenuation quantity suppressing a harmonic signal that is twice or three times as high as a passing frequency in a high frequency side of a passband.
SOLUTION: In this surface acoustic wave device 81 arranges a surface acoustic wave element E composed by connecting parallelly plural resonators R to an input-output signal line L on a substrate K, the substrate K has at least 1st and 2nd dielectric layers 11 and 12, ground electrodes 6 connected to at least one of the resonators R are formed plurally on the layer 11, and also, a common electrode 8 connected to all of the plural electrodes 6 is formed on the layer 13.
Inventors:
Kazuhiro Otsuka
Application Number:
JP9553199A
Publication Date:
August 17, 2005
Filing Date:
April 01, 1999
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
H03H9/145; H03H9/25; H03H9/64; (IPC1-7): H03H9/145; H03H9/25; H03H9/64
Domestic Patent References:
| JP10200370A | ||||
| JP9098056A | ||||
| JP6053775A |