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    • 1. 发明申请
    • Elastic surface-wave device
    • 弹性表面波装置
    • US20020014809A1
    • 2002-02-07
    • US09930959
    • 2001-08-17
    • TOPPAN PRINTING CO., LTD
    • Yusuke TsukaharaKazushi YamanakaNoritaka Nakaso
    • H03H009/25
    • H03H9/14561G01N29/022G01N2291/0256H03H9/02881
    • The present invention relates to an elastic surface-wave device, and more particularly to an elastic surface-wave device of a greatly increased performance, compared with a prior art elastic surface-wave device, and which is compact. The elastic surface-wave device includes a substrate including a surface having a region which is formed by at least a part of a spherical surface and is circularly continuous, and a surface acoustic wave generator which is provided in the surface region of the substrate and generates surface acoustic waves propagating in a continuous direction of the surface region. The surface acoustic wave generator generates surface acoustic waves in such a manner these waves can propagate only in the continuous direction without being diffused in a direction crossing the continuous direction along the surface region.
    • 弹性表面波装置技术领域本发明涉及一种弹性表面波装置,更具体地涉及与现有技术的弹性表面波装置相比性能大大提高的弹性表面波装置,其结构紧凑。 弹性表面波装置包括:基板,其具有由球面的至少一部分形成且呈圆形连续的区域的表面,以及设置在基板的表面区域中的声表面波发生器, 表面声波在表面区域的连续方向上传播。 表面声波发生器以这种方式产生表面声波,这些波只能在连续方向上传播,而不会沿着沿着表面区域的连续方向的方向扩散。