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1. 发明申请

US20190190495A1 RECONFIGURABLE MICROACOUSTIC FILTER AND DUPLEXER COMPRISING A RECONFIGURABLE MICROACOUSTIC FILTER 审中-公开
公开(公告)号：US20190190495A1
公开(公告)日：2019-06-20
申请号：US16323216
申请日：2017-08-04
申请人： SNAPTRACK, INC.
发明人： Edgar SCHMIDHAMMER
IPC分类号： H03H9/64 , H03H9/54 , H03H7/46 , H03H7/12
CPC分类号： H03H9/6483 , H03H7/12 , H03H7/463 , H03H9/542 , H03H9/568 , H03H9/605 , H03H9/6406 , H03H9/6409 , H03H2210/012 , H03H2210/015 , H03H2210/025
摘要： A reconfigurable microacoustic filter is specified which comprises a ladder-type-like filter topology and a suitably placed adjustable capacitive element.

2. 发明申请

US20190109575A1 LINEAR, LOW NOISE, HIGH Q AND WIDELY TUNABLE NOTCH FILTER 审中-公开
公开(公告)号：US20190109575A1
公开(公告)日：2019-04-11
申请号：US15730643
申请日：2017-10-11
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Milad DARVISHI , Hooman DARABI , Arya Reza BEHZAD
IPC分类号： H03H7/01 , H03H2/00 , H03H7/12 , H04J1/04
CPC分类号： H03H7/01 , H03H2/008 , H03H7/12 , H03H19/002 , H03H2001/0014 , H03H2007/013 , H03H2210/025 , H04J1/045
摘要： A linear, low noise, high quality factor (Q) and widely tunable notch filter circuit includes one or more first reactive elements coupled between a first filter node and a first node. The notch filter circuit further includes a multi-branch circuit having multiple parallel branches and coupled between the first node and a second node. Each branch of the multi-branch circuit includes at least a switch coupled to a variable capacitor. A notch frequency of the notch filter circuit is tunable by adjusting a capacitance of the variable capacitor.

3. 发明授权

US10056662B2 Switched bandstop filter with low-loss linear-phase bypass state 有权
公开(公告)号：US10056662B2
公开(公告)日：2018-08-21
申请号：US15275159
申请日：2016-09-23
申请人： The United States of America, as represented by the Secretary of the Navy
发明人： Andrew C. Guyette , Eric J. Naglich , Sanghoon Shin
IPC分类号： H01P1/20 , H01F38/14 , H01P1/10 , H01P1/12 , H03H7/12 , H01P1/203 , H03H7/01
CPC分类号： H01P1/20 , H01F38/14 , H01P1/10 , H01P1/127 , H01P1/2039 , H03H7/12 , H03H2007/013
摘要： Systems and methods are provided for implementing a switched microwave bandstop filter with minimum insertion loss and phase distortion in the bypass state. For example, embodiments of the present disclosure provide systems and methods for implementing self-switching bandstop filters that do not require signal-routing RF switches, allowing for very low passband insertion loss and improved power handling.

4. 发明申请

US20160352310A1 FILTER CIRCUIT AND WIRELESS COMMUNICATION APPARATUS 有权
标题翻译：滤波电路和无线通信装置
公开(公告)号：US20160352310A1
公开(公告)日：2016-12-01
申请号：US15232372
申请日：2016-08-09
申请人： Murata Manufacturing Co., Ltd.
发明人： Masakazu Tani , Shouzo Sugiyama
IPC分类号： H03H9/54 , H04B1/525 , H03H9/64
CPC分类号： H03H9/542 , H03H7/0153 , H03H7/12 , H03H9/568 , H03H9/605 , H03H9/64 , H03H9/6403 , H03H9/6483 , H03H2210/025 , H04B1/525
摘要： A 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 switching circuit, and the switching circuit connects an inductor or a capacitor to the serial arm in series using a switch.
摘要翻译：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，。串联臂包括开关电路，开关电路使用开关将电感器或电容器串联连接到串联臂。

5. 发明申请

US20160294367A1 MOS CAPACITORS WITH INTERLEAVED FINGERS AND METHODS OF FORMING THE SAME 有权
标题翻译：具有交替指状的MOS电容器及其形成方法
公开(公告)号：US20160294367A1
公开(公告)日：2016-10-06
申请号：US15085669
申请日：2016-03-30
申请人： TDK Corporation
发明人： Jim Bao , Rien Gahlsdorf
IPC分类号： H03H19/00 , G05F3/20 , H01L49/02
CPC分类号： H03H19/004 , G05F3/205 , H01L28/40 , H01L29/66181 , H01L29/94 , H03H7/0153 , H03H7/12 , H03H7/40 , H03H7/463 , H03H2250/00
摘要： A capacitor structure is described. The capacitor structure includes a substrate; a plurality of source/drain regions formed in said substrate to form an active area, the active area having an active area width; and a first and a second plurality of gates formed above the substrate. Each gate of the first and second plurality of gates having a gate width. The gate width is configured to be less than the active area width and each gate of the first and second plurality of gates is formed between a pair of source/drain regions of the plurality of source/drain regions such that the first plurality of gates interleave with the second plurality of gates.
摘要翻译：描述电容器结构。电容器结构包括基板; 形成在所述衬底中以形成有源区的多个源极/漏极区，所述有源区具有有效面积宽度; 以及形成在所述衬底上方的第一和第二多个栅极。第一和第二多个栅极的每个栅极具有栅极宽度。栅极宽度被配置为小于有源区宽度，并且第一和第二多个栅极的每个栅极形成在多个源极/漏极区域的一对源极/漏极区域之间，使得第一多个栅极交错与第二多个门。

6. 发明授权

US09294064B2 Bandpass filter implementation on a single layer using spiral capacitors 有权
标题翻译：使用螺旋电容器在单层上实现带通滤波器
公开(公告)号：US09294064B2
公开(公告)日：2016-03-22
申请号：US13835211
申请日：2013-03-15
申请人： QUALCOMM Incorporated
发明人： Young Kyu Song , Kyu-Pyung Hwang , Changhan Hobie Yun , Dong Wook Kim
IPC分类号： H03H7/01 , H03H7/12 , H05K1/16 , H01G4/40 , H03H3/00
CPC分类号： H03H7/0115 , H01G4/40 , H03H3/00 , H03H7/12 , H05K1/162 , H05K2201/09236 , Y10T29/43 , Y10T29/49016
摘要： A planar capacitor includes, in part, a first metal line forming spiral-shaped loops around one of its end point, and a second metal line forming spiral-shaped loops between the loops of the first metal line. The first and second metal lines are coplanar, formed on an insulating layer, and form the first and second plates of the planar capacitor. The planar capacitor may be used to form a filter. Such a filter includes a first metal line forming first spiral-shaped loops, a second metal line forming second spiral-shaped loops, and a third metal line—coplanar with the first and second metal lines—forming loops between the loops of the first and second metal lines. The filter further includes a first inductor coupled between the first and third metal lines, and a second inductor coupled between the second and third metal lines.
摘要翻译：平面电容器部分地包括围绕其端点之一形成螺旋形环的第一金属线和在第一金属线的环之间形成螺旋形环的第二金属线。第一和第二金属线是共面的，形成在绝缘层上，并形成平面电容器的第一和第二板。平面电容器可以用于形成滤波器。这种过滤器包括形成第一螺旋形环的第一金属线，形成第二螺旋状环的第二金属线和与第一和第二金属线形成环之间的第一和第二金属线形成环的第三金属线 - 共面，第二条金属线滤波器还包括耦合在第一和第三金属线之间的第一电感器和耦合在第二和第三金属线之间的第二电感器。

7. 发明授权

US09136815B2 Methods and apparatuses for implementing variable bandwidth RF tracking filters for reconfigurable multi-standard radios 有权
标题翻译：用于实现可重构多标准无线电的可变带宽RF跟踪滤波器的方法和装置
公开(公告)号：US09136815B2
公开(公告)日：2015-09-15
申请号：US13852512
申请日：2013-03-28
申请人： Nokia Corporation
发明人： Sudhir Aggarwal , Xiao Xiao
IPC分类号： H03H7/12 , H03H19/00
CPC分类号： H03H7/12 , H03H19/002
摘要： A variable bandwidth filter includes a first filter branch in parallel with a second filter branch. The first filter branch includes a first resistance in series with an input and a first output, and N parallel paths across the first output. The second filter branch includes a second resistance in series with the input and a second output, and N parallel paths across the second output. A clock tunes the first and second filter branches to a center frequency. A combiner produces a difference signal including a difference between the output of the first filter branch and the output of the second filter branch to provide a filter output having an adjustable bandwidth with reference to a center frequency. The bandwidth is adjusted by changing a value of at least one resistor or at least one capacitor in one or more of the first filter branch or the second filter branch.
摘要翻译：可变带宽过滤器包括与第二过滤器分支并行的第一过滤器分支。第一滤波器分支包括与输入和第一输出串联的第一电阻以及穿过第一输出的N个并行路径。第二滤波器分支包括与输入和第二输出串联的第二电阻，以及穿过第二输出的N个并行路径。时钟将第一和第二滤波器分支调谐到中心频率。组合器产生包括第一滤波器分支的输出与第二滤波器分支的输出之间的差异的差分信号，以提供具有参考中心频率的可调节带宽的滤波器输出。通过在第一滤波器分支或第二滤波器分支中的一个或多个中改变至少一个电阻器或至少一个电容器的值来调整带宽。

8. 发明授权

US09112476B2 Second-order filter with notch for use in receivers to effectively suppress the transmitter blockers 有权
标题翻译：用于接收器的二级滤波器用于有效地抑制发射器阻塞器
公开(公告)号：US09112476B2
公开(公告)日：2015-08-18
申请号：US13405673
申请日：2012-02-27
申请人： Umut Basaran , Josef Schmal , Stefan Herzinger , Herbert Stockinger , Volker Thomas
发明人： Umut Basaran , Josef Schmal , Stefan Herzinger , Herbert Stockinger , Volker Thomas
IPC分类号： H04B1/38 , H03H7/12 , H03H11/12 , H04B1/525 , H03H7/01
CPC分类号： H03H7/0153 , H03H7/06 , H03H7/12 , H03H11/1217 , H03H2007/013 , H04B1/525
摘要： The disclosed invention relates to a transceiver system comprising a notch filter element configured to suppress transmitter blockers (i.e., transmitter interferer signals) within a reception path. In some embodiments, the transceiver front-end comprises a differential reception path, having a first differential branch and a second differential branch, configured to provide an RF differential input signal having a transmitter blocker to a transimpedance amplifier, comprising a first-order active filter and a notch filter element. The notch filter element comprises a stop band corresponding to a frequency of a transmitted signal, such that the notch filter element suppresses the transmitted blocker without degrading the signal quality of the received differential input signal.
摘要翻译：所公开的本发明涉及一种收发器系统，包括陷波滤波器元件，其被配置为抑制接收路径内的发射机阻挡器（即，发射机干扰信号）。在一些实施例中，收发机前端包括具有第一差分支路和第二差分支路的差分接收路径，其被配置为向跨阻抗放大器提供具有发射机阻断器的RF差分输入信号，包括一阶有源滤波器和陷波滤波器元件。陷波滤波器元件包括对应于发送信号的频率的阻带，使得陷波滤波器元件抑制所发送的阻断器而不降低接收的差分输入信号的信号质量。

9. 发明申请

US20150131492A1 ADAPTIVE FILTER RESPONSE SYSTEMS AND METHODS 有权
标题翻译：自适应滤波器响应系统和方法
公开(公告)号：US20150131492A1
公开(公告)日：2015-05-14
申请号：US14446270
申请日：2014-07-29
申请人： Wispry, Inc.
发明人： Arthur S. Morris, III , Jorgen Bojer , Peter Dam Madsen
IPC分类号： H04L5/14
CPC分类号： H03H7/0138 , H03H7/0115 , H03H7/0153 , H03H7/12 , H03H7/175 , H03H7/1758 , H03H7/1766 , H03H7/463 , H03H2210/00 , H03H2210/01 , H04L5/1461
摘要： The present subject matter relates to systems, devices, and methods for adaptively tuning antenna elements and/or associated filter elements to support multiple frequency bands. For example, a tunable filter having an input node and an output node can be selectively tunable to define one or more pass bands associated with one or more first signal bands and one or more reject bands associated with one or more second signal bands. The tunable filter can be configured to pass signals having frequencies within the first signal bands between the input node and the output node and to block signals having frequencies within the second signal bands. Furthermore, the tunable filter can be configured to selectively tune the pass bands to have a minimum pass band insertion loss at any of a variety of frequencies, including frequencies that are greater than and less than frequencies within the reject bands.
摘要翻译：本主题涉及用于自适应地调谐天线元件和/或相关联的滤波器元件以支持多个频带的系统，装置和方法。例如，具有输入节点和输出节点的可调谐滤波器可以选择性地可调谐以定义与一个或多个第一信号频带以及与一个或多个第二信号频带相关联的一个或多个拒绝频带相关联的一个或多个通带。可调谐滤波器可以被配置为传递具有在输入节点和输出节点之间的第一信号频带内的频率的信号，并且阻止具有在第二信号频带内的频率的信号。此外，可调谐滤波器可以被配置为选择性地调谐通带以在各种频率中的任何一个（包括大于和小于拒绝频带内的频率的频率）中具有最小的通带插入损耗。

10. 发明申请

US20150102872A1 RADIO FREQUENCY FILTER 有权
标题翻译：无线频率滤波器
公开(公告)号：US20150102872A1
公开(公告)日：2015-04-16
申请号：US14575861
申请日：2014-12-18
申请人： Resonant, Inc.
发明人： Genichi Tsuzuki , Balam A. Willemsen
IPC分类号： H03H9/46 , H03H9/54 , H03H9/64
CPC分类号： H03H9/465 , G06F17/5036 , G06F17/5045 , G06F17/5063 , G06F17/5072 , G06F17/5077 , G06F2217/02 , G06F2217/08 , G06F2217/16 , G06F2217/82 , H01P1/20 , H01P1/20336 , H03H3/00 , H03H7/0153 , H03H7/0161 , H03H7/06 , H03H7/075 , H03H7/12 , H03H7/1758 , H03H7/1791 , H03H7/54 , H03H9/171 , H03H9/46 , H03H9/462 , H03H9/542 , H03H9/64 , H03H9/6406 , H03H2007/013 , H03H2009/02204 , H03H2210/012 , H03H2210/025 , H03H2210/033 , Y10T29/49018
摘要： An RF filter comprises a signal transmission path having an input and an output, a plurality of resonant elements disposed along the signal transmission path between the input and the output, and a plurality of non-resonant elements coupling the resonant elements together to form a stop band having a plurality of transmission zeroes corresponding to respective frequencies of the resonant elements, and at least one sub-band between the transmission zeroes. The non-resonant elements comprise at least one variable non-resonant element for selectively introducing at least one reflection zero within the stop band to create a pass band in a selected one of the sub-band(s). The RF filter further comprises an electrical controller configured for receiving an operating temperature, and adjusting the variable non-resonant element(s) based on the received operating temperature, thereby selectively moving the reflection zero(es) along the stop band to move the pass band within the selected sub-band.
摘要翻译： RF滤波器包括具有输入和输出的信号传输路径，沿着输入和输出之间的信号传输路径设置的多个谐振元件，以及将谐振元件耦合在一起的多个非谐振元件，以形成停止频带具有对应于谐振元件的相应频率的多个传输零点，以及传输零点之间的至少一个子带。非谐振元件包括至少一个可变非谐振元件，用于选择性地在阻带内引入至少一个反射零点，以在所选择的一个子带中产生通带。 RF滤波器还包括被配置为接收工作温度并基于接收到的工作温度调整可变非谐振元件的电控制器，由此选择性地沿着阻带移动反射零点以移动通过在所选子带内。

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