公开(公告)号：US20160344370A1

公开(公告)日：2016-11-24

申请号：US15230666

申请日：2016-08-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masakazu TANI ,  Shouzo SUGIYAMA

IPC: H03H9/64 ,  H04B1/00

CPC classification number: H03H9/64 ,  H03H7/0161 ,  H03H7/075 ,  H03H9/542 ,  H04B1/0064

Abstract: A variable filter circuit includes a serial arm connected between ports (P1-P2), a parallel arm having a resonator connected in series between ports (P1-P3), and another parallel arm having another resonator connected in series between ports (P2-P3). The serial arm includes an inductor connected between the ports (P1-P2), and the parallel arms include variable capacitances connected in series to the resonators.

Abstract translation: 可变滤波器电路包括连接在端口（P1-P2）之间的串联臂，具有在端口（P1-P3）之间串联连接的谐振器的并联臂，以及具有在端口（P2-P3）之间串联连接的另一谐振器的另一个并联臂 ）。 串联臂包括连接在端口（P1-P2）之间的电感器，并联臂包括与谐振器串联连接的可变电容。

公开(公告)号：US20160344364A1

公开(公告)日：2016-11-24

申请号：US15230764

申请日：2016-08-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Takashi OGAMI ,  Hitoshi TADA ,  Masakazu TANI ,  Shouzo SUGIYAMA

IPC: H03H7/01 ,  H04B1/00 ,  H04B1/12

CPC classification number: H03H7/0115 ,  H01G7/06 ,  H01G17/00 ,  H03H7/0153 ,  H03H7/075 ,  H03H9/542 ,  H03H9/605 ,  H03H9/6483 ,  H03H2210/025 ,  H04B1/0064 ,  H04B1/126

Abstract: A variable filter circuit includes a serial arm connected between ports (P1-P2), a parallel arm having a resonator connected in series between ports (P1-P3), and another parallel arm having another resonator connected in series between ports (P2-P3). The serial arm includes a capacitor connected between the ports (P1-P2), and the parallel arms include variable capacitances connected in series to the resonators.

Abstract translation: 可变滤波器电路包括连接在端口（P1-P2）之间的串联臂，具有在端口（P1-P3）之间串联连接的谐振器的并联臂，以及具有在端口（P2-P3）之间串联连接的另一谐振器的另一个并联臂 ）。 串联臂包括连接在端口（P1-P2）之间的电容器，并联臂包括与谐振器串联连接的可变电容。

公开(公告)号：US20160294362A1

公开(公告)日：2016-10-06

申请号：US14988754

申请日：2016-01-06

Applicant: Wistron NeWeb Corp.

Inventor： Chun-Chieh Huang

IPC: H03H11/04 ,  H04B1/00 ,  H04B1/40

CPC classification number: H03H7/075 ,  H01Q1/50 ,  H03H7/0115 ,  H03H7/1758 ,  H03H7/1775 ,  H03H11/04

Abstract: A wireless communication device and a tunable filter are provided. The tunable filter includes a first energy storage element, a first series resonant circuit, a second series resonant circuit, a first tunable parallel resonant circuit and a second tunable parallel resonant circuit. The first series resonant circuit and the second series resonant circuit respectively include a first capacitor and a first inductor electrically connected in series. The first tunable parallel resonant circuit and the second tunable parallel resonant circuit respectively include a variable capacitor and a second inductor electrically connected between a ground and a bias voltage. The first series resonant circuit is electrically connected between a first end of the first energy storage element and the first tunable parallel resonant circuit. The second series resonant circuit is electrically connected between a second end of the first energy storage element and the second tunable parallel resonant circuit.

Abstract translation: 提供无线通信设备和可调滤波器。 可调滤波器包括第一能量存储元件，第一串联谐振电路，第二串联谐振电路，第一可调谐并联谐振电路和第二可调谐并联谐振电路。 第一串联谐振电路和第二串联谐振电路分别包括串联电连接的第一电容器和第一电感器。 第一可调并联谐振电路和第二可调谐并联谐振电路分别包括可变电容器和电连接在接地和偏置电压之间的第二电感器。 第一串联谐振电路电连接在第一能量存储元件的第一端和第一可调谐并联谐振电路之间。 第二串联谐振电路电连接在第一能量存储元件的第二端和第二可调谐并联谐振电路之间。

公开(公告)号：US20160276997A1

公开(公告)日：2016-09-22

申请号：US15171184

申请日：2016-06-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masahiro TERAMOTO

IPC: H03H7/01 ,  H03H7/42 ,  H03H7/075

CPC classification number: H03H7/0115 ,  H03H7/075 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/427 ,  H03H2001/0085 ,  H03H2007/013

Abstract: In a filter component with improved attenuation characteristics for common mode noise, an LC series resonance circuit disposed in each of a plurality of shunt circuits is connected at a first end to a first line and is grounded at a second end. The LC series resonance circuit disposed in each of the shunt circuits is grounded at a first end and is connected at a second end to a second line. With this configuration, the LC series resonance circuits resonate reliably so as to define attenuation poles. Accordingly, the resonant frequency of each of the LC series resonance circuits is set to be a frequency that effectively attenuates common mode noise.

Abstract translation: 在对于共模噪声具有改进的衰减特性的滤波器部件中，设置在多个分流电路中的每一个中的LC串联谐振电路在第一端连接到第一线并在第二端接地。 设置在每个分流电路中的LC串联谐振电路在第一端接地，并在第二端连接到第二线。 利用这种配置，LC串联谐振电路可靠地谐振，以便限定衰减极。 因此，每个LC串联谐振电路的谐振频率被设定为有效衰减共模噪声的频率。

公开(公告)号：US09369107B2

公开(公告)日：2016-06-14

申请号：US14408014

申请日：2013-06-18

Applicant: THOMSON LICENSING

Inventor： Max Muterspaugh ,  Dan Hutchinson ,  Lincheng Xiu ,  Rejimon G. Varghese

IPC: H03H7/46 ,  H03H7/01 ,  H03H7/075 ,  H04B1/16

CPC classification number: H03H7/0115 ,  H03H7/0123 ,  H03H7/075 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1783 ,  H03H7/1791 ,  H03H7/466 ,  H04B1/16

Abstract: An apparatus and method for filtering a signal is described. The apparatus includes a first singly terminated filter that filters a signal in a first frequency range, and a second singly terminated filter that filters the signal in a second frequency range, the inputs of the filters being connected together, wherein an element of the first filter is coupled to an additional element to form a frequency response transmission zero in a stopband frequency range of the first filter. The method includes receiving a signal, the signal containing content from a first source in a first frequency range and content from a second source in a second frequency range different than the first range, applying filtering, and applying filtering to generate a second output signal, using filters that include a singly terminated filter section with additional circuit elements to form a transmission frequency zero in the stopband frequency range.

Abstract translation: 描述了用于对信号进行滤波的装置和方法。 该装置包括对第一频率范围内的信号进行滤波的第一单个端接滤波器和在第二频率范围内对信号进行滤波的第二单端滤波器，滤波器的输入连接在一起，其中第一滤波器的元件 耦合到附加元件以在第一滤波器的阻带频率范围内形成频率响应传输零点。 该方法包括：在第一频率范围内从第一源接收包含内容的信号和在与第一范围不同的第二频率范围内的来自第二源的内容的信号，应用滤波，以及应用滤波以产生第二输出信号， 使用包括具有附加电路元件的单个端接滤波器部分的滤波器，以在阻带频率范围内形成传输频率为零。

公开(公告)号：US09246465B2

公开(公告)日：2016-01-26

申请号：US14525758

申请日：2014-10-28

Applicant: NXP B.V.

Inventor： Robert Hendrikus Margaretha van Veldhoven

IPC: G06G7/12 ,  G06F7/44 ,  H03H7/075 ,  H03D7/12 ,  H03D7/14 ,  H03F3/45 ,  H03F3/72

CPC classification number: H03H7/075 ,  H03D7/125 ,  H03D7/1441 ,  H03D7/1466 ,  H03D2200/0074 ,  H03D2200/0086 ,  H03F3/45071 ,  H03F3/72 ,  H03F2200/333

Abstract: A mixer comprising a ladder having at least two resistances arranged in series and an input configured to receive an input signal and apply it across the ladder, said ladder including an output arrangement comprising at least three branches, a first branch branching from a first end of the ladder, a second branch branching from between the at least two resistances and a third branch branching from a second end of the ladder, opposite the first end, each branch including a switch for controlling a connection between its branch and an output.

Abstract translation: 一种混合器，包括具有串联布置的至少两个电阻的梯子和被配置为接收输入信号并将其施加到梯子上的输入端，所述梯形图包括输出装置，所述输出装置包括至少三个分支，第一分支从第一端 梯子，从所述至少两个电阻之间分支的第二分支和从所述梯子的第二端分支的与所述第一端相对的第三分支，每个分支包括用于控制其分支和输出之间的连接的开关。

公开(公告)号：US08847707B2

公开(公告)日：2014-09-30

申请号：US13420740

申请日：2012-03-15

Applicant: Hiroshi Masuda ,  Takahiro Mori

Inventor： Hiroshi Masuda ,  Takahiro Mori

IPC: H03H7/09 ,  H03H7/01 ,  H03H1/00 ,  H03H7/075

CPC classification number: H03H7/0115 ,  H03H7/075 ,  H03H7/09 ,  H03H7/1708 ,  H03H7/1766 ,  H03H7/1775 ,  H03H2001/0085

Abstract: A filter includes a multilayer body including a plurality of insulator layers stacked on top of one another. Outer electrodes are provided on surfaces of the multilayer body. A first resonator is connected to a first one of the outer electrodes and includes a first coil. A second resonator is connected to a second one of the outer electrodes and includes a second coil. A third resonator includes a third coil that is magnetically coupled with the first and second coils. The first and second coils are respectively defined by coil conductor layers provided on an insulator layer. The third coil is defined by via hole conductors that penetrate through the insulator layer in a z-axis direction.

Abstract translation: 滤波器包括多层体，其包括堆叠在彼此顶部的多个绝缘体层。 外电极设置在多层体的表面上。 第一谐振器连接到第一外部电极并包括第一线圈。 第二谐振器连接到外部电极中的第二谐振器，并且包括第二线圈。 第三谐振器包括与第一和第二线圈磁耦合的第三线圈。 第一和第二线圈分别由设置在绝缘体层上的线圈导体层限定。 第三线圈由穿过绝缘体层的通孔导体在z轴方向上限定。

公开(公告)号：US20140152412A1

公开(公告)日：2014-06-05

申请号：US14095544

申请日：2013-12-03

Applicant: PSTEK Co., Ltd.

Inventor： Jae Taek LEE

IPC: H01F21/00 ,  H01F27/06

CPC classification number: H03H7/00 ,  H01F21/12 ,  H03H7/075 ,  H03H7/425

Abstract: The present disclosure provides a high-power variable inductor and a filter employing the same. A provided variable inductor comprises a first inductor and a second inductor. The first inductor is connected to a first input terminal and to a first output terminal of a two-port circuit. The second inductor is connected to a second input terminal and to a second output terminal of the two-port circuit. The first inductor and the second inductor are symmetrical to each other and jointly surround an adjustable area for varying an inductance of the variable inductor.

Abstract translation: 本公开提供了一种高功率可变电感器和采用该电感器的滤波器。 提供的可变电感器包括第一电感器和第二电感器。 第一电感器连接到第一输入端子和二端口电路的第一输出端子。 第二电感器连接到双端口电路的第二输入端子和第二输出端子。 第一电感器和第二电感器彼此对称并且共同围绕用于改变可变电感器的电感的可调节区域。

公开(公告)号：US20140106698A1

公开(公告)日：2014-04-17

申请号：US14132895

申请日：2013-12-18

Applicant: FUJITSU LIMITED

Inventor： Xiaoyu Mi ,  OSAMU TOYODA ,  Satoshi UEDA

IPC: H03H7/01 ,  H04B1/10 ,  H03H7/12

CPC classification number: H03H7/0123 ,  H03H7/0115 ,  H03H7/0161 ,  H03H7/075 ,  H03H7/12 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1775 ,  H03H2001/0085 ,  H03H2007/008 ,  H03H2210/012 ,  H03H2210/015 ,  H03H2210/025 ,  H03H2210/033 ,  H03H2210/036 ,  H03H2250/00 ,  H04B1/10 ,  H04B1/1638 ,  H04B1/18

Abstract: A variable filter device has: a first series arm which is serially connected to a signal line, includes a variable capacitance and an inductance, and constitutes a series resonator; first and second parallel arms, which are connected between the signal line and the ground on both sides of the first series arm, each of which includes a variable capacitance and an inductance, and constitutes a grounded series resonator. The first series arm defines the center frequency of the pass band, and the first and second parallel arms define attenuation poles sandwiching the pass band.

Abstract translation: 可变滤波器装置具有串联连接到信号线的第一串联臂，包括可变电容和电感，并构成串联谐振器; 第一和第二并联臂，其连接在第一串联臂的两侧的信号线和地之间，每个臂包括可变电容和电感，并构成接地串联谐振器。 第一串联臂限定通带的中心频率，第一和第二平行臂限定夹着通带的衰减极。

公开(公告)号：US08680948B2

公开(公告)日：2014-03-25

申请号：US13239961

申请日：2011-09-22

Applicant: Kazuhiro Shirakawa ,  Hiroshi Taki ,  Yoichi Shoji

Inventor： Kazuhiro Shirakawa ,  Hiroshi Taki ,  Yoichi Shoji

IPC: H03H7/06

CPC classification number: H03H7/06 ,  H03H7/0115 ,  H03H7/075 ,  H03H7/1758 ,  H03H7/1775 ,  H03H7/1783 ,  H03H2007/013

Abstract: In a band elimination filter, a plurality of capacitors are connected in parallel between first and second terminals of an electromagnetic noise source which generates voltage fluctuations in a connecting lead connected to the first terminal, with the capacitors being connected to the connecting lead at respectively corresponding branch points. For each capacitor, the total series inductance of a first circuit path is made less than that of a second circuit path, where the first circuit path extends from the corresponding branch point to the second terminal via the capacitor, and the second circuit path extends from that branch point to the first terminal of the electromagnetic noise source. A resistor is connected in series with at least one of the capacitors, for damping parallel resonance caused by inductance components of an adjacent pair of capacitors.

Abstract translation: 在带除滤波器中，多个电容器并联连接在电磁噪声源的第一和第二端子之间，该电磁噪声源在连接到第一端子的连接引线中产生电压波动，电容器分别连接到连接引线 分支点。 对于每个电容器，使得第一电路路径的总串联电感小于第二电路路径的总串联电感，其中第一电路路径经由电容器从相应的分支点延伸到第二端子，并且第二电路路径从 该分支指向电磁噪声源的第一端。 电阻器与电容器中的至少一个串联连接，用于抑制由相邻电容器对的电感分量引起的并联谐振。