Surface acoustic wave (SAW) structure with transverse mode suppression

A surface acoustic wave (SAW) structure with transverse mode suppression is disclosed. In one aspect, the SAW structure provides a finger or finger having a wide inner tip shape. By providing such a shape, spurious modes above the resonant frequency of the SAW are suppressed, thereby providing desired out-of-band rejection, which helps meet design criteria such as maintaining higher Q values, higher K2 values, and better temperature coefficient of frequency (TCF). 公开具有横模抑制的表面声波SAW结构。在一个方面，所述SAW结构提供具有宽的内部末端形状的指件或指形件。通过提供此类形状，高于所述SAW的谐振频率的杂散模得以抑制，由此提供所要的带外抑制，这有助于满足设计准则，例如保持较高的Q值、较高的K2值和更好的频率温度系数(TCF)。