Original document(20 pages) Authorized document(20 pages) 中文版
    The invention provide a surface acoustic wave device includes a piezoelectric substrate, a first interdigital transducer, a second interdigital transducer and a first coupler. The first and second interdigital transducers are arranged on the surface of the piezoelectric substrate such that the second interdigital transducer is offset from a direction in which a surface acoustic wave excited by the first IDT propagates. A first edge is provided on the piezoelectric substrate to reflect the excited surface acoustic wave to the first and second interdigital transducers, and the first coupler having a plurality of metal strips on the piezoelectric substrate is provided between the first edge of the piezoelectric substrate and at least one of the first and second interdigital transducers so as to be adjacent to the first and second interdigital transducers. The surface acoustic wave device operates using a shear horizontal surface wave.
Application Number
申请号
00121722 Application Date
申请日
2000.07.21
Title 名称 Surface acoustic wave device and communication equipment
Publication Number
公开号
1282145 Publication Date
公开日
2001.01.31
Approval Pub. Date 2004.10.27 Granted Pub. Date 2004.10.27
International Classification 分类号 H03H9/25;H03H9/64
Applicant(s) Name
申请人
Murata Manufacturing Co., Ltd.
Address 地址
Inventor(s) Name 发明人 Kadota Michio
Attorney & Agent 代理人 shen zhaokun

  
Surface wave device
Surface wave resonator
Piezoelectric resonators for trap circuits having a plurality of trap frequeucies
Method of manufacturing surface wave element
Love-wave device including thin film of Ta or W
End face reflection type surface wave resonator
Saw resonator
Free edge reflective surface wave device
Surface wave resonator
Acoustic surface-wave device
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