公开(公告)号：US08004371B2

公开(公告)日：2011-08-23

申请号：US12856757

申请日：2010-08-16

申请人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

发明人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

IPC分类号： H03H9/74 ,  H03H9/76 ,  H03H9/54 ,  H03H9/64 ,  H03F3/60 ,  H03F3/68

CPC分类号： H03H9/6409 ,  H03F3/191 ,  H03F3/60 ,  H03F3/602 ,  H03H9/542 ,  H03H9/547 ,  H03H9/706 ,  H03H9/74

摘要： Distributed band reject filters are disclosed. A first radio frequency band reject filter is disclosed having a splitter having a first input port, a first output port and a second output port, the splitter being operable on an input signal applied to the first input port to provide a respective output signal proportional to the input signal at each of the first and second output ports, the output signals having a phase shift between 45 degrees and 135 degree with respect to the input signal, as well as first, second and third acoustic resonators coupled respectively to the first input port, the first output port and the second output port. A second radio frequency band reject filter is disclosed having a combiner having a first input port, a second input port and a first output port, the combiner being operable on an input signals applied to the first input port and the second input port to provide a respective output signal proportional to the input signals at the first output port, the output signal having a phase shift between 45 degrees and 135 degree with respect to the input signals, as well as first, second and third acoustic resonators coupled respectively to the first input port, the second input port and the first output port. Also disclosed are amplifiers that comprise such radio frequency band reject filters.

摘要翻译： 公开了分布式带阻滤波器。 公开了一种具有分离器的第一无线电频带滤波器，其具有第一输入端口，第一输出端口和第二输出端口，所述分配器可在施加到第一输入端口的输入信号上操作，以提供与 在第一和第二输出端口中的每一个处的输入信号，输出信号相对于输入信号具有在45度和135度之间的相移，以及分别耦合到第一输入端口的第一，第二和第三声谐振器 ，第一个输出端口和第二个输出端口。 公开了一种具有组合器的第二射频抑制滤波器，该组合器具有第​​一输入端口，第二输入端口和第一输出端口，所述组合器可在施加到第一输入端口和第二输入端口的输入信号上操作， 输出信号与第一输出端口处的输入信号成比例，输出信号相对于输入信号具有在45度和135度之间的相移，以及分别耦合到第一输入端口的第一，第二和第三声谐振器 ，第二输入端口和第一输出端口。 还公开了包括这种无线电频带拒绝滤波器的放大器。

公开(公告)号：US20240313743A1

公开(公告)日：2024-09-19

申请号：US18594165

申请日：2024-03-04

申请人： Qorvo US, Inc.

发明人： Chris Levesque ,  Mudar Al-Joumayly

IPC分类号： H03H9/74 ,  H03H3/02

CPC分类号： H03H9/74 ,  H03H3/02

摘要： Front-end circuitry for a wireless communication device is disclosed. In some embodiments, the radio frequency (RF) front-end circuitry includes various transceiver chains. The transceiver chains may each include a bulk acoustic wave (BAW) filter. The BAW filter in each of the transceiver chains may each have the same filter design with various exposed external pins, such as input pins, output pins, and ground pins. With respect to the transceiver chains, a different combination of the external pins are hardwired depending on a desired placement of a passband. In this manner, switches and control circuitry for the switches are not needed in order to place the passband. Furthermore, BAW filters with the same filter design can be used in the different transceiver chains, thereby simplifying the manufacturing process of the front-end circuitry.

公开(公告)号：US20080129411A1

公开(公告)日：2008-06-05

申请号：US11666438

申请日：2005-09-30

申请人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

发明人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

IPC分类号： H03H9/72 ,  H03H9/54 ,  H03H9/64

CPC分类号： H03H9/6409 ,  H03F3/191 ,  H03F3/60 ,  H03F3/602 ,  H03H9/542 ,  H03H9/547 ,  H03H9/706 ,  H03H9/74

摘要： Band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.

摘要翻译： 公开了带阻滤波器。 带阻滤波器包括第一声谐振器和第二声谐振器，每个谐振器具有适于基本上在限定抑制频带的相应谐振频率谐振的并联谐振器或适于基本上以相应的反谐振频率反共振的串联谐振器 定义拒绝频带。 这些谐振器通过移相器连接，该移相器将阻抗相移约为45°至135°。 本文公开的带阻滤波器的示例性应用包括作为用于无线通信系统的基站功率放大器的级间带宽滤波器的实现，作为无线通信终端的双工器中的无线电频带拒绝滤波器，以及 低噪声放大器输入级。

公开(公告)号：US06683515B1

公开(公告)日：2004-01-27

申请号：US09666814

申请日：2000-09-21

申请人： Hiroyuki Nakamura ,  Kenji Monma ,  Toru Yamada ,  Kazunori Nishimura

发明人： Hiroyuki Nakamura ,  Kenji Monma ,  Toru Yamada ,  Kazunori Nishimura

IPC分类号： H03H964

CPC分类号： H03H9/74 ,  H03H9/02779 ,  H03H2009/0019 ,  H03H2250/00 ,  H04B7/084

摘要： A surface-acoustic-wave filter has a piezoelectric substrate; and a plurality of transversal surface-acoustic-wave (SAW) filters set on the piezoelectric substrate and respectively having at least two inter-digital transducer (IDT) electrodes for transcieving surface acoustic waves, characterized in that periods for surface acoustic waves to propagate from inputs to outputs of the SAW filters differ in the SAW filters and thereby, timings of outputs from the SAW filters are different from each other.

摘要翻译： 表面声波滤波器具有压电基板; 和多个横向表面声波（SAW）滤波器，其设置在压电基片上并且分别具有至少两个用于转换表面声波的数字间转换器（IDT）电极，其特征在于，声表面波的周期从 在SAW滤波器中SAW滤波器的输出的输入不同，因此来自SAW滤波器的输出的定时彼此不同。

公开(公告)号：US09184782B2

公开(公告)日：2015-11-10

申请号：US13761940

申请日：2013-02-07

申请人： Murata Manufacturing Co., Ltd.

发明人： Yasumasa Taniguchi

IPC分类号： H04B1/48 ,  H03H9/72 ,  H03H9/70 ,  H03H9/74 ,  H03H9/64 ,  H04B1/50 ,  H01Q1/50 ,  H01Q21/00 ,  H03H9/76 ,  H03H9/00

CPC分类号： H03H9/74 ,  H01Q1/50 ,  H01Q21/0006 ,  H03H9/0057 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725 ,  H03H9/76 ,  H04B1/48 ,  H04B1/50

摘要： A high-frequency module includes first and second demultiplexers and a band elimination filter. The first and second demultiplexers include common terminals, transmission filters, and reception filters, respectively. In the band elimination filter, a demultiplexer-side terminal is connected to the common terminal of the first demultiplexer. The band elimination filter includes a first pass band, and a second pass band and a stop band that are located adjacent to each other within the first pass band. The band elimination filter is configured so that the second pass band includes the pass band of each of the transmission filter and the reception filter in the first demultiplexer and the stop band includes the pass band of the transmission filter in the second demultiplexer.

摘要翻译： 高频模块包括第一和第二解复用器和带除滤波器。 第一和第二解复用器分别包括公共端，传输滤波器和接收滤波器。 在带除滤波器中，解复用器侧终端连接到第一解复用器的公共端。 带除滤波器包括在第一通带内彼此相邻定位的第一通带和第二通带和阻带。 带除滤波器被配置为使得第二通带包括第一解复用器中的发送滤波器和接收滤波器中的每一个的通带，并且阻带包括第二解复用器中的发送滤波器的通带。

公开(公告)号：US09160307B2

公开(公告)日：2015-10-13

申请号：US13956506

申请日：2013-08-01

申请人： Murata Manufacturing Co., Ltd.

发明人： Masanori Kato

IPC分类号： H03H9/46 ,  H03H9/74 ,  H03H9/05 ,  H03H9/60 ,  H03H9/64 ,  H03H9/70 ,  H03H9/72 ,  H04B1/52 ,  H03H9/00 ,  H03H7/42 ,  H05K1/02

CPC分类号： H03H9/74 ,  H03H9/0009 ,  H03H9/0057 ,  H03H9/0542 ,  H03H9/0571 ,  H03H9/0576 ,  H03H9/605 ,  H03H9/6483 ,  H03H9/706 ,  H03H9/725 ,  H04B1/52 ,  H05K1/0216 ,  H05K1/0243 ,  H05K1/0245

摘要： At least one duplexer includes first and second balanced terminals. A mount electrode layer includes a first balanced mount electrode, which is connected to the first balanced terminal, and a second balanced mount electrode, which is connected to the second balanced terminal. An internal electrode layer includes at least one internal ground electrode. When viewing a mount board from a side on which the duplexer is mounted, the first and second balanced mount electrodes do not oppose the same internal ground electrode.

摘要翻译： 至少一个双工器包括第一和第二平衡端子。 安装电极层包括连接到第一平衡端子的第一平衡安装电极和连接到第二平衡端子的第二平衡安装电极。 内部电极层包括至少一个内部接地电极。 当从安装有双工器的一侧观察安装板时，第一和第二平衡安装电极不与相同的内部接地电极相对。

公开(公告)号：US20130106531A1

公开(公告)日：2013-05-02

申请号：US13661865

申请日：2012-10-26

申请人： Commissariat A L'Energie Atomique Et Aux Energies Alternatives

发明人： Alexandre REINHARDT

IPC分类号： H03H9/70

CPC分类号： H03H9/74 ,  H03H9/76

摘要： A power device comprises an output port and at least one first acoustic pathway and one second acoustic pathway, each acoustic pathway comprising at least one first input acoustic wave transducer connected to an input port, and an output acoustic wave transducer connected to the output port. Each acoustic pathway further comprises a floating acoustic wave transducer connected to a floating port; the input transducer and the output transducer being separated by a distance equal to (2m+1)λ/4 with m an integer and λ the propagation wavelength; the input transducer and the floating transducer being separated by a distance equal to (2n+1) λ/2 with n an integer; each output transducer being connected to the output port, said power device being a combiner.

摘要翻译： 功率器件包括输出端口和至少一个第一声学通道和一个第二声学通路，每个声学通路包括连接到输入端口的至少一个第一输入声波换能器和连接到输出端口的输出声波换能器。 每个声道还包括连接到浮动端口的浮动声波换能器; 输入传感器和输出传感器被隔开距离等于（2m + 1）λ/ 4，m为整数，λ为传播波长; 输入换能器和浮动换能器以n为整数分开等于（2n + 1）λ/ 2的距离; 每个输出换能器连接到输出端口，所述功率器件是组合器。

公开(公告)号：US20110273243A1

公开(公告)日：2011-11-10

申请号：US13099696

申请日：2011-05-03

申请人： Frédéric DOMINGUE ,  Alexandre REINHARDT

发明人： Frédéric DOMINGUE ,  Alexandre REINHARDT

IPC分类号： H03H7/38

CPC分类号： H03H9/0222 ,  H01L41/04 ,  H01L41/083 ,  H03H9/02228 ,  H03H9/585 ,  H03H9/589 ,  H03H9/70 ,  H03H9/74

摘要： An electrical signal combiner includes at least one first element and a second element respectively connected to a first input port and to a second input port, and a third element connected to an output port, the electrical signals being propagated between the input and output ports. The combiner includes a medium; and the first, second and third elements are acoustic wave transducers, the electrical signals being carried by acoustic waves propagated between the input and output ports within the medium. Advantageously, the first transducer and the third transducer are separated by an acoustic distance of (2k+1)λ/4 with k an integer greater than or equal to 0 with λ the acoustic propagation wavelength; the second transducer and the third transducer are separated by an acoustic distance of (2k′+1)λ/4 with k′ an integer greater than or equal to 0; and the first and second transducers are separated by an acoustic distance of (2k″+2)λ/4 with k″ an integer greater than or equal to 0—in such a manner as to, on the one hand, generate constructive interference at the output port and, on the other hand, to isolate the first and second input ports by destructive interference of acoustic waves at the ports.

摘要翻译： 电信号组合器包括分别连接到第一输入端口和第二输入端口的至少一个第一元件和第二元件，以及连接到输出端口的第三元件，电信号在输入端口和输出端口之间传播。 组合器包括介质; 并且第一，第二和第三元件是声波换能器，电信号由在介质内的输入和输出端口之间传播的声波承载。 有利地，第一换能器和第三换能器以（2k + 1）λ/ 4的声距离与k为大于或等于0的整数分开，λ为声传播波长; 第二换能器和第三换能器以（2k'+ 1）λ/ 4的声距离分开，k'为大于或等于0的整数; 并且第一和第二换能器以（2k“+2）λ/ 4的声距离分开，其中k”为大于或等于0的整数，一方面在一个方面产生建设性干扰 输出端口，另一方面，通过端口处的声波的相消干扰来隔离第一和第二输入端口。

公开(公告)号：US07777597B2

公开(公告)日：2010-08-17

申请号：US11666438

申请日：2005-09-30

申请人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

发明人： Steve Beaudin ,  Chun-Yun Jian ,  Somsack Sychaleun

IPC分类号： H03H9/54 ,  H03H9/64 ,  H03H9/70

CPC分类号： H03H9/6409 ,  H03F3/191 ,  H03F3/60 ,  H03F3/602 ,  H03H9/542 ,  H03H9/547 ,  H03H9/706 ,  H03H9/74

摘要： Band reject filters are disclosed. A band reject filter includes a first acoustic resonator and a second acoustic resonator, each of which has either shunt resonators adapted to resonate substantially at respective resonance frequencies defining a rejection frequency band or series resonators adapted to anti-resonate substantially at respective anti-resonance frequencies defining the rejection frequency band. These resonators are connected through a phase shifter which imparts an impedance phase shift of approximately 45° to 135°. Exemplary applications of the band reject filters disclosed herein include implementation as an inter-stage band reject filter for a base station power amplifier for a wireless communication system, as a radio frequency band reject filter in a duplexer for a wireless communication terminal, and in a low noise amplifier input stage.

摘要翻译： 公开了带阻滤波器。 带阻滤波器包括第一声谐振器和第二声谐振器，每个谐振器具有适于基本上在限定抑制频带的相应谐振频率谐振的并联谐振器或适于基本上以相应的反谐振频率反共振的串联谐振器 定义拒绝频带。 这些谐振器通过移相器连接，该移相器将阻抗相移约为45°至135°。 本文公开的带阻滤波器的示例性应用包括作为用于无线通信系统的基站功率放大器的级间带宽滤波器的实现，作为无线通信终端的双工器中的无线电频带拒绝滤波器，以及 低噪声放大器输入级。

公开(公告)号：US20230188115A1

公开(公告)日：2023-06-15

申请号：US18059520

申请日：2022-11-29

申请人： SKYWORKS SOLUTIONS, INC.

发明人： Koichi Hatano

IPC分类号： H03H9/60 ,  H03H9/58 ,  H03H9/13 ,  H03H9/74

CPC分类号： H03H9/605 ,  H03H9/587 ,  H03H9/133 ,  H03H9/74

摘要： A ladder type acoustic wave filter is disclosed. The acoustic wave filter can include a plurality of parallel arm resonators and a plurality of series arm resonators, in which an electromechanical coupling coefficient of a parallel arm resonator closest to an input node of the acoustic wave filter among the plurality of parallel arm resonators can be smaller than an electromechanical coupling coefficient of a series arm resonator closest to the input node among the plurality of series arm resonators.