-
公开(公告)号：US11973491B2
公开(公告)日：2024-04-30
申请号：US17364567
申请日：2021-06-30
IPC分类号： H03H9/64 , H03F1/56 , H03F3/195 , H03F3/24 , H03F3/72 , H03H9/02 , H03H9/10 , H03H9/25 , H03H9/72 , H04B1/40 , H01Q1/24 , H03F3/19 , H04M1/02
CPC分类号： H03H9/6489 , H03F1/56 , H03F3/195 , H03F3/245 , H03F3/72 , H03H9/02685 , H03H9/02834 , H03H9/02992 , H03H9/25 , H03H9/6483 , H03H9/725 , H04B1/40 , H01Q1/242 , H03F3/19 , H03F2200/111 , H03F2200/129 , H03F2200/171 , H03F2200/447 , H03F2200/451 , H03F2203/7209 , H03H9/1064 , H04M1/0202
摘要： Aspects of this disclosure relate to a surface acoustic wave filter with an integrated temperature sensor. The integrated temperature sensor can be a resistive thermal device configured as a reflective grating for a surface acoustic wave resonator, for example. A radio frequency system can provide over temperature protection by reducing a power level of a radio frequency signal provided to the surface acoustic wave filter responsive to an indication of temperature provided by the integrated temperature sensor satisfying a threshold.
-
公开(公告)号：US11923824B2
公开(公告)日：2024-03-05
申请号：US17930348
申请日：2022-09-07
发明人： Joshua James Caron
CPC分类号： H03H9/02905 , H03H3/08 , H03H9/02559 , H03H9/02614 , H03H9/25 , H03H9/6483 , H03H9/725
摘要： Embodiments of this disclosure relate to reducing coupling between acoustic wave resonators. An isolation region of a substrate can be located between acoustic wave resonators. The isolation region can reduce capacitive coupling through the substrate between the acoustic wave resonators. In certain embodiments, the isolation region can be located between acoustic wave resonators of different filters to thereby increase isolation between the filters.
-
公开(公告)号：US20230216478A1
公开(公告)日：2023-07-06
申请号：US18147141
申请日：2022-12-28
发明人： Joshua James Caron , Lisha Shi , David Albert Feld
摘要： An integrated bulk acoustic wave resonator-capacitor comprises a membrane including a piezoelectric film, an upper electrode disposed on a top surface of the piezoelectric film, and a lower electrode disposed on a lower surface of the piezoelectric film, a resonator region of the membrane defining a main active domain in which a main acoustic wave is generated during operation, and a capacitor region of the membrane surrounding the resonator region, the capacitor region including a layer of conductive material disposed on the upper electrode, an inner capacitor raised frame defined on an inner peripheral region of the layer of conductive material, and an outer capacitor raised frame defined on an outer peripheral region of the layer of conductive material.
-
公开(公告)号：US20230013541A1
公开(公告)日：2023-01-19
申请号：US17810869
申请日：2022-07-06
发明人： Joshua James Caron , Eesa Rahimi
摘要： A surface acoustic wave device including a piezoelectric layer, an interdigital transducer electrode over the piezoelectric layer, and a polymeric roof layer arranged over the piezoelectric layer and interdigital transducer electrode. The polymeric roof layer is spaced apart from the piezoelectric layer to define a cavity to accommodate the interdigital transducer electrode. The polymeric roof layer is supported along a span of the polymeric roof layer by at least one pillar. The thermal conductivity of the pillar is greater than the thermal conductivity of the polymeric roof layer. Related wafer-level packages, radio frequency modules and wireless communication devices are also provided.
-
公开(公告)号：US11451212B2
公开(公告)日：2022-09-20
申请号：US16900175
申请日：2020-06-12
发明人： Tomoya Komatsu , Yiliu Wang , Akira Ochiai , Joshua James Caron
摘要： Aspects of this disclosure relate to an acoustic wave filter with an acoustic wave resonator arranged to concentrate a transverse spurious mode at a frequency. Such an acoustic wave resonator can have a narrow aperture to concentrate the transverse spurious mode. The transverse spurious mode can increase steepness of a skirt of the acoustic wave filter. Related methods, acoustic wave devices, multiplexers, radio frequency front ends, radio frequency modules, and wireless communication devices are disclosed.
-
36.发明申请公开(公告)号：US20220014169A1
公开(公告)日：2022-01-13
申请号：US17449063
申请日：2021-09-27
摘要： Aspects of this disclosure relate to acoustic wave filters that include a Lamb wave resonator and a second acoustic wave resonator that is a different type of acoustic wave resonator than the Lamb wave resonator. The different type of resonator can be a film bulk acoustic wave resonator for example. Some embodiments of this disclosure relate to an acoustic wave filter that includes the Lamb wave resonator and the second acoustic wave resonator. Some embodiments of this disclosure related to different respective acoustic wave filters including the Lamb wave resonator and the second acoustic wave resonator, in which the Lamb wave resonator and the second acoustic wave resonator are implemented on a common substrate.
-
公开(公告)号：US11038487B2
公开(公告)日：2021-06-15
申请号：US16515302
申请日：2019-07-18
发明人： Joshua James Caron
摘要： An acoustic wave device includes an acoustic wave filter configured to filter a radio frequency signal and a loop circuit coupled to the acoustic wave filter. The loop circuit is configured to generate an anti-phase signal to a target signal at a particular frequency. The loop circuit includes a Lamb wave resonator having a piezoelectric layer and an interdigital transducer electrode disposed on the piezoelectric layer. The piezoelectric layer includes free edges. An edge of the piezoelectric layer is configured to one of suppress or scatter reflections of acoustic waves generated by the interdigital transducer electrode from the edge of the piezoelectric layer.
-
公开(公告)号：US20210159881A1
公开(公告)日：2021-05-27
申请号：US17099603
申请日：2020-11-16
摘要： Aspects of this disclosure relate to a surface acoustic wave device that includes a first reflector over a piezoelectric layer, a second reflector over the piezoelectric layer, and an interdigital transducer electrode structure over the piezoelectric layer and positioned between the first reflector and the second reflector. The surface acoustic wave device includes a velocity adjustment layer arranged to adjust acoustic velocity in a region of the surface acoustic wave device. The velocity adjustment layer can be a high speed layer or a low speed layer.
-
公开(公告)号：US10951178B2
公开(公告)日：2021-03-16
申请号：US16586711
申请日：2019-09-27
摘要： In some embodiments, a power amplification system can comprise a current source configured to provide a bias current, a current mirror configured to mirror the bias current, a comparator configured to compare the mirrored bias current to a threshold current, and a transistor at an output of the comparator. The transistor can be configured to be activated in response to the mirrored bias current exceeding the threshold current.
-
公开(公告)号：US20200313645A1
公开(公告)日：2020-10-01
申请号：US16818118
申请日：2020-03-13
发明人： Joshua James Caron
摘要： Embodiments of this disclosure relate to reducing coupling between acoustic wave resonators. An isolation region of a substrate can be located between acoustic wave resonators. The isolation region can reduce capacitive coupling through the substrate between the acoustic wave resonators. In certain embodiments, the isolation region can be located between acoustic wave resonators of different filters to thereby increase isolation between the filters.
-
-
-
-
-
-
-
-
-
搜索结果
65 条记录 (耗时 0.025 秒)
