- 专利标题： BULK ACOUSTIC WAVE RESONATOR FILTERS INCLUDING A HIGH IMPEDANCE SHUNT BRANCH AND METHODS OF FORMING THE SAME
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申请号： US17323332申请日： 2021-05-18
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公开(公告)号： US20210273630A1公开(公告)日： 2021-09-02
- 发明人: Saurabh Gupta , Zhiqiang BI , Dee Ho KIM , Pinal Patel , Katherine W. Davis , Emad Mehdizadeh
- 申请人： Akoustis, Inc.
- 申请人地址： US NC Huntersville
- 专利权人： Akoustis, Inc.
- 当前专利权人： Akoustis, Inc.
- 当前专利权人地址： US NC Huntersville
- 主分类号： H03H9/205
- IPC分类号： H03H9/205 ; H03H9/56 ; H03H3/02
摘要：
A BAW resonator ladder topology pass-band filter can include a plurality of series branches each including BAW series resonators. A plurality of shunt branches can each include BAW shunt resonators, wherein the plurality of series branches are coupled to the plurality of shunt branches to provide the BAW resonator ladder topology pass-band filter. A high-impedance shunt branch can include a plurality of high-impedance BAW shunt resonators coupled together in-series to provide an impedance for the high-impedance shunt branch that is greater the other shunt branches in the BAW resonator ladder topology pass-band filter.
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