会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 18. 发明授权
    • Elastic wave resonator, ladder filter and duplexer
    • 弹性波谐振器,梯形滤波器和双工器
    • US08222973B2
    • 2012-07-17
    • US13306012
    • 2011-11-29
    • Toshiaki Takata
    • Toshiaki Takata
    • H03H9/64H03H9/72H03H9/25
    • H03H9/0222H03H9/02929H03H9/02944H03H9/02992H03H9/1452H03H9/14573
    • An acoustic wave resonator that is excellent in terms of return loss characteristics at the resonant and anti-resonant frequencies and that is capable of effectively reducing loss includes an IDT electrode in which a plurality of first electrode fingers and a plurality of second dummy electrode fingers are connected to a first common electrode, a plurality of second electrode fingers and a plurality of first dummy electrode fingers are connected to a second common electrode. Apodization weighting is applied in the acoustic wave propagation direction. The metallization ratio of a non-crossing region is relatively high compared with the metallization ratio of a crossing region in the acoustic wave propagation direction.
    • 在谐振和反谐振频率方面具有优异的回波损耗特性并且能够有效减少损耗的声波谐振器包括:多个第一电极指和多个第二虚拟电极指的IDT电极 连接到第一公共电极,多个第二电极指和多个第一虚拟电极指连接到第二公共电极。 在声波传播方向上应用变迹加权。 非交叉区域的金属化率相对于声波传播方向上的交叉区域的金属化率相对较高。