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1. 发明授权

US10243539B2 Radio frequency transmit filter with integrated impedance matching network 有权
公开(公告)号：US10243539B2
公开(公告)日：2019-03-26
申请号：US15640112
申请日：2017-06-30
申请人： Resonant Inc.
发明人： James R. Costa , Neal Fenzi , Robert Hammond
IPC分类号： H04B1/10 , H04B1/44 , H03H9/64 , H03H7/38 , H04B1/38 , H03H11/30 , H04B1/04 , H01Q1/50 , H04L5/14
摘要： A transmit filter for a communications device includes a surface acoustic wave (SAW) band-pass filter configured to pass a transmit frequency band and a tunable transmitter impedance matching network in series. The tunable transmitter impedance matching network matches an input impedance of the SAW band-pass filter to the output impedance of a power amplifier over a portion of the transmit frequency band in response to a tuning input.

2. 发明申请

US20220149808A1 TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH LOW THERMAL IMPEDANCE 有权
公开(公告)号：US20220149808A1
公开(公告)日：2022-05-12
申请号：US17244444
申请日：2021-04-29
申请人： Resonant Inc.
发明人： Greg Dyer , Chris O'Brien , Neal O. Fenzi , James R. Costa
IPC分类号： H03H9/02 , H03H9/17 , H03H9/56 , H03H9/13 , H03H3/02
摘要： An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm. The piezoelectric plate and the BOX layer are removed from a least a portion of the surface area of the device to provide lower thermal resistance between the IDT and the substrate.

3. 发明申请

US20180205365A1 METHOD OF OPTIMIZING INPUT IMPEDANCE OF SURFACE ACOUSTIC WAVE FILTER 审中-公开
公开(公告)号：US20180205365A1
公开(公告)日：2018-07-19
申请号：US15920948
申请日：2018-03-14
申请人： Resonant Inc.
发明人： James R. Costa , Balam Quitzé Andrés Willemsen Cortés
IPC分类号： H03H9/64 , G06F17/50
CPC分类号： H03H9/6483 , G06F17/5063 , G06F17/5081 , H03H2260/00
摘要： Methods to design band-pass acoustic wave microwave filters are disclosed. A performance metric related to an input impedance of a baseline filter design is calculated, the baseline filter design including a plurality of series surface acoustic wave resonators and a plurality of shunt surface acoustic wave resonators, each surface acoustic wave resonator having a respective resonant frequency. One or more alternative filter designs is established, each alternative filter design derived from the baseline filter design by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators and/or two or more of the plurality of shunt surface acoustic wave resonators. A respective performance metric related to an input impedance of each alternative filter designs is calculated. A final filter design is selected from among the baseline filter design and the alternative filter designs based on the respective performance metrics.

4. 发明授权

US09948277B2 Method of optimizing input impedance of surface acoustic wave filter 有权
公开(公告)号：US09948277B2
公开(公告)日：2018-04-17
申请号：US15159672
申请日：2016-05-19
申请人： Resonant Inc.
发明人： James R. Costa , Balam Quitzé Andrés Willemsen Cortés
IPC分类号： H03H9/64 , G06F17/50
CPC分类号： H03H9/6483 , G06F17/5063 , G06F17/5081 , H03H2260/00
摘要： Methods of designing band-pass filters are disclosed. A baseline filter design is established, the baseline filter design including a plurality of surface acoustic wave resonators having respective resonant frequencies, the surface acoustic wave resonators organized by resonant frequency into two or more groups. One or more alternative filter designs are established, each alternative filter design derived from the baseline filter design by reordering the resonant frequencies of two or more surface acoustic wave resonators within at least one of the two or more groups. A respective performance metric related to input impedance over a pass band is calculated for each of the baseline filter design and the alternative filter designs. A final filter design is selected from the baseline filter design and the alternative filter designs based on the respective performance metrics.

5. 发明申请

US20220149807A1 TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATOR WITH LOW THERMAL IMPEDANCE 有权
公开(公告)号：US20220149807A1
公开(公告)日：2022-05-12
申请号：US17217923
申请日：2021-03-30
申请人： Resonant Inc.
发明人： Greg Dyer , Chris O'Brien , Neal O. Fenzi , James R. Costa
IPC分类号： H03H9/02 , H03H3/02 , H03H9/13 , H03H9/17 , H03H9/56
摘要： An acoustic resonator device with low thermal impedance has a substrate and a single-crystal piezoelectric plate having a back surface attached to a top surface of the substrate via a bonding oxide (BOX) layer. An interdigital transducer (IDT) formed on the front surface of the plate has interleaved fingers disposed on the diaphragm. The piezoelectric plate and the BOX layer are removed from a least a portion of the surface area of the device to provide lower thermal resistance between the conductor pattern and the substrate.

6. 发明授权

US10277199B2 Method of optimizing input impedance of surface acoustic wave filter 有权
公开(公告)号：US10277199B2
公开(公告)日：2019-04-30
申请号：US15920948
申请日：2018-03-14
申请人： Resonant Inc.
发明人： James R. Costa , Balam Quitzé Andrés Willemsen Cortés
IPC分类号： H03H9/64 , G06F17/50
摘要： Methods to design band-pass acoustic wave microwave filters are disclosed. A performance metric related to an input impedance of a baseline filter design is calculated, the baseline filter design including a plurality of series surface acoustic wave resonators and a plurality of shunt surface acoustic wave resonators, each surface acoustic wave resonator having a respective resonant frequency. One or more alternative filter designs is established, each alternative filter design derived from the baseline filter design by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators and/or two or more of the plurality of shunt surface acoustic wave resonators. A respective performance metric related to an input impedance of each alternative filter designs is calculated. A final filter design is selected from among the baseline filter design and the alternative filter designs based on the respective performance metrics.

7. 发明申请

US20220158615A1 SOLIDLY-MOUNTED TRANSVERSELY-EXCITED FILM BULK ACOUSTIC RESONATORS WITH LOW THERMAL IMPEDANCE 有权
公开(公告)号：US20220158615A1
公开(公告)日：2022-05-19
申请号：US17591577
申请日：2022-02-02
申请人： Resonant Inc.
发明人： Greg Dyer , Chris O'Brien , Neal O. Fenzi , James R. Costa
IPC分类号： H03H9/17 , H03H9/13 , H03H9/54
摘要： Acoustic resonators, filters and methods of making resonators are disclosed. An acoustic resonator includes a substrate, a piezoelectric plate, and an acoustic Bragg reflector between a surface of the substrate and a back surface of the piezoelectric plate. An interdigital transducer (IDT) on a front surface of the piezoelectric plate includes first and second busbars and a plurality of interleaved fingers extending alternately from the first and second busbars. At least a portion of the first busbar contacts the substrate through an opening in the piezoelectric plate and acoustic Bragg reflector.

8. 发明授权

US09374061B1 Method of optimizing input impedance of surface acoustic wave filter 有权
标题翻译：优化声表面波滤波器输入阻抗的方法
公开(公告)号：US09374061B1
公开(公告)日：2016-06-21
申请号：US14843812
申请日：2015-09-02
申请人： Resonant Inc.
发明人： James R. Costa , Balam Quitzé Andrés Willemsen Cortés
IPC分类号： H03H9/64 , H03H3/04 , H03H9/72 , G06F17/50 , H03H9/25
CPC分类号： H03H9/6483 , G06F17/5045 , H03H3/04 , H03H3/08 , H03H9/25 , H03H9/725 , H03H2003/0414 , H03H2260/00
摘要： Methods of designing band-pass filters and filters are disclosed. A baseline filter design meeting first design criteria may be established, the baseline filter design including a plurality of series surface acoustic wave resonators and a plurality of shunt surface acoustic wave resonators, each surface acoustic wave resonator having a respective resonant frequency. A performance metric based on an input impedance of the baseline filter design over a pass band may be determined. One or more alternate filter designs may be established and respective performance metrics determined, each alternative filter design established by reordering the resonant frequencies of two or more of the plurality of series surface acoustic wave resonators and/or two or more of the plurality of shunt surface acoustic wave resonators. A final filter design may be selected from the baseline design and the one or more alternate filter designs based on the respective performance metrics.
摘要翻译：公开了设计带通滤波器和滤波器的方法。可以建立满足第一设计标准的基线滤波器设计，基线滤波器设计包括多个串联声表面波谐振器和多个分流表面声波谐振器，每个表面声波谐振器具有相应的谐振频率。可以确定基于通带上的基线滤波器设计的输入阻抗的性能度量。可以建立一个或多个替代滤波器设计并且确定相应的性能度量，通过重新排列多个串联声表面波谐振器中的两个或更多个的谐振频率和/或多个分流表面中的两个或更多个来建立每个替代滤波器设计声波谐振器。可以基于相应的性能度量从基线设计和一个或多个替代滤波器设计中选择最终滤波器设计。

9. 发明申请

US20160028373A1 HIGH REJECTION SURFACE ACOUSTIC WAVE DUPLEXER 有权
标题翻译：高阻抗表面声波复用器
公开(公告)号：US20160028373A1
公开(公告)日：2016-01-28
申请号：US14730019
申请日：2015-06-03
申请人： Resonant Inc.
发明人： James R. Costa , Kurt Raihn
IPC分类号： H03H9/64 , H03H9/54
CPC分类号： H03H9/725 , H03H9/02818 , H03H9/02905 , H03H9/02992 , H03H9/6409 , H03H9/6483
摘要： Filer devices and duplexer devices are disclosed. A filter device includes two or more surface acoustic wave resonators, including at least a first shunt resonator, formed on a surface of a substrate. A ground conductor formed on the surface of the substrate connects the first shunt resonator to a ground pad. At least a portion of an edge of the ground conductor is shaped as a plurality of serrations.
摘要翻译：公开了文件装置和双工器装置。滤波器装置包括两个或更多个表面声波谐振器，其包括形成在基板的表面上的至少第一并联谐振器。形成在衬底的表面上的接地导体将第一并联谐振器连接到接地焊盘。接地导体的边缘的至少一部分成形为多个锯齿状。

10. 发明授权

US09077312B1 High rejection surface acoustic wave filter 有权
标题翻译：高阻抗表面声波滤波器
公开(公告)号：US09077312B1
公开(公告)日：2015-07-07
申请号：US14495494
申请日：2014-09-24
申请人： Resonant Inc.
发明人： James R. Costa , Kurt Raihn
IPC分类号： H03H9/72 , H03H9/64 , H03H9/02
CPC分类号： H03H9/725 , H03H9/02818 , H03H9/02905 , H03H9/02992 , H03H9/6409 , H03H9/6483
摘要： A filter includes two or more surface acoustic wave resonators formed on a surface of a substrate and at least one ground conductor formed on the surface of the substrate. At least a portion of an edge of the ground conductor is formed as a plurality of serrations.
摘要翻译：滤波器包括形成在基板的表面上的两个或更多个表面声波谐振器和形成在基板的表面上的至少一个接地导体。接地导体的边缘的至少一部分形成为多个锯齿。

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