公开(公告)号：US11838043B2

公开(公告)日：2023-12-05

申请号：US17371185

申请日：2021-07-09

申请人： Murata Manufacturing Co., Ltd.

发明人： Satoshi Shigematsu ,  Kenichi Ishizuka

IPC分类号： H04B1/10 ,  H04B1/40 ,  H03H7/03 ,  H03H7/09

CPC分类号： H04B1/40 ,  H03H7/03 ,  H03H7/09

摘要： A filter circuit module includes a filter circuit element, a circuit board with the filter circuit element mounted thereon, and a first inductor. The filter circuit element includes a resonant circuit capacitor defining a portion of an LC parallel resonant circuit, and a phase-shift circuit. The circuit board includes a second inductor. A primary coil and a secondary coil of the phase-shift circuit are overlapped with the second inductor, viewed in a direction of a winding axis. The resonant circuit capacitor is closer to a mounting surface on which the filter circuit element is mounted on the circuit board, compared with the primary coil and the secondary coil. The resonant circuit capacitor includes a capacitor electrode covering a coil opening of the primary coil and a coil opening of the secondary coil, viewed in the direction of the winding axis.

公开(公告)号：US20180006625A1

公开(公告)日：2018-01-04

申请号：US15708195

申请日：2017-09-19

申请人： Murata Manufacturing Co., Ltd.

发明人： Yuji KAMINISHI

IPC分类号： H03H7/03 ,  H03H7/46 ,  H03H7/01

CPC分类号： H03H7/03 ,  H03H7/0115 ,  H03H7/09 ,  H03H7/46 ,  H03H7/463

摘要： A diplexer includes a first filter circuit including a first loop inductor defining a first loop plane and a second loop inductor defining a second loop plane, a second filter circuit adjacent to the first filter circuit, and a first via hole conductor that electrically connects an input/output terminal, the first filter circuit and the second filter circuit to each other. The first loop plane faces the second loop plane while protruding beyond the second loop plane in a first direction. The first via hole conductor is provided relative to the first loop inductor in a second direction from the first loop plane toward the second loop plane, and is superposed with a portion of the first loop plane that protrudes beyond the second loop plane when viewed in the second direction.

公开(公告)号：US20160373081A1

公开(公告)日：2016-12-22

申请号：US15130701

申请日：2016-04-15

申请人： Clover Network, Inc.

发明人： Arvind Antonio de Menezes Pereira ,  Alvin Dominguez ,  Gary Wagner

IPC分类号： H03H7/03 ,  H03H7/01

CPC分类号： H03H7/03 ,  H03H7/0115 ,  H03H7/0138 ,  H03H7/0153 ,  H03H7/0161 ,  H03H7/17 ,  H03H21/0001 ,  H03H2021/0098

摘要： Various methods and devices that involve tuning filters are disclosed. A disclosed method for tuning a filter comprises trimming a center frequency of the filter. The method also comprises trimming an input signal magnitude of the filter. The method also comprises measuring a performance metric of the filter after trimming the center frequency of the filter and the input signal magnitude of the filter. The method also comprises repeating the trimming steps and the measuring step until the filter is tuned for a first physical test condition. A disclosed device that includes a filter also includes first and second trimming circuits that trim the center frequency and input signal magnitude of the filter. A disclosed system includes a motor to transfer a transmitting device from a first physical test condition to a second physical test condition relative to a proximity coupling device with a filter.

摘要翻译： 公开了涉及调谐滤波器的各种方法和装置。 用于调谐滤波器的公开方法包括调整滤波器的中心频率。 该方法还包括调整滤波器的输入信号幅度。 该方法还包括在调整滤波器的中心频率和滤波器的输入信号幅度之后测量滤波器的性能度量。 该方法还包括重复修整步骤和测量步骤，直到滤波器被调谐为第一物理测试条件。 包括滤波器的公开的装置还包括修整滤波器的中心频率和输入信号幅度的第一和第二微调电路。 所公开的系统包括相对于具有滤波器的邻近耦合装置将发射装置从第一物理测试条件传送到第二物理测试条件的电动机。

公开(公告)号：US08907714B2

公开(公告)日：2014-12-09

申请号：US13470131

申请日：2012-05-11

申请人： Hsien-Ku Chen

发明人： Hsien-Ku Chen

IPC分类号： G06G7/12 ,  H03H19/00 ,  H03H7/03 ,  H03H11/06

CPC分类号： H03H19/006 ,  H03H7/03 ,  H03H11/06

摘要： A switched capacitor circuit with switching loss compensation mechanism includes a resonant unit and a loss compensation unit. The resonant unit generates a resonant frequency and includes a capacitor switching unit for switching an output capacitor. The loss compensation unit is coupled to the resonant unit for providing loss compensation when the capacitor switching unit outputs different capacitance values.

摘要翻译： 具有开关损耗补偿机构的开关电容电路包括谐振单元和损耗补偿单元。 谐振单元产生谐振频率，并且包括用于切换输出电容器的电容器切换单元。 损耗补偿单元耦合到谐振单元，用于在电容器开关单元输出不同的电容值时提供损耗补偿。

公开(公告)号：US08606211B2

公开(公告)日：2013-12-10

申请号：US12490268

申请日：2009-06-23

申请人： Bruce A. Judson ,  Cong T. Nguyen

发明人： Bruce A. Judson ,  Cong T. Nguyen

IPC分类号： H04B1/16

CPC分类号： H04B1/1036 ,  H03F3/195 ,  H03F2200/241 ,  H03H7/03 ,  H03H7/1775 ,  H03H11/52 ,  H04B1/109

摘要： A preselect circuit maintains the dynamic range of a received RF input signal during bandpass filtering of the received RF input signal. The preselect circuit includes a Q-deficient passive bandpass filter for coupling to an antenna to receive a received RF input signal. The preselect circuit further includes a Q-enhancement circuit coupled to the Q-deficient passive bandpass filter, wherein the Q-enhancement circuit increases a Q-value of the Q-deficient passive bandpass filter by compensating for resistive inductive losses in the bandpass filter.

摘要翻译： 在接收的RF输入信号的带通滤波期间，预选电路保持接收的RF输入信号的动态范围。 预选电路包括用于耦合到天线以接收接收的RF输入信号的Q缺陷无源带通滤波器。 预选电路还包括耦合到Q缺陷无源带通滤波器的Q增强电路，其中Q增强电路通过补偿带通滤波器中的电阻感应损耗来增加Q缺陷无源带通滤波器的Q值。

公开(公告)号：US20120286857A1

公开(公告)日：2012-11-15

申请号：US13470131

申请日：2012-05-11

申请人： Hsien-Ku Chen

发明人： Hsien-Ku Chen

IPC分类号： H03H11/04 ,  H03H7/03

CPC分类号： H03H19/006 ,  H03H7/03 ,  H03H11/06

摘要： A switched capacitor circuit with switching loss compensation mechanism includes a resonant unit and a loss compensation unit. The resonant unit generates a resonant frequency and includes a capacitor switching unit for switching an output capacitor. The loss compensation unit is coupled to the resonant unit for providing loss compensation when the capacitor switching unit outputs different capacitance values.

摘要翻译： 具有开关损耗补偿机构的开关电容电路包括谐振单元和损耗补偿单元。 谐振单元产生谐振频率，并且包括用于切换输出电容器的电容器切换单元。 损耗补偿单元耦合到谐振单元，用于在电容器开关单元输出不同的电容值时提供损耗补偿。

公开(公告)号：US07859439B2

公开(公告)日：2010-12-28

申请号：US12420026

申请日：2009-04-07

申请人： Pei-Wei Chen ,  Sheng-Jui Huang

发明人： Pei-Wei Chen ,  Sheng-Jui Huang

IPC分类号： H03M1/10

CPC分类号： H04B1/0035 ,  H03H7/0153 ,  H03H7/03

摘要： A processing apparatus for calibrating an analog filter of a communication device in a digital domain is disclosed, wherein the analog filter is arranged to perform a filtering operation upon a communication signal in an analog domain. The processing apparatus includes a signal processing circuit and a digital filter. The signal processing circuit is used for transforming the communication signal between the digital domain and the analog domain. The digital filter is coupled to the signal processing circuit, and used for performing a filtering operation upon the communication signal in the digital domain, wherein a frequency response of the digital filter is arranged to compensate a frequency response of the analog filter according to at least a compensation parameter generated with reference to a frequency-related characteristic of the analog filter.

摘要翻译： 公开了一种用于校准数字域中的通信设备的模拟滤波器的处理装置，其中模拟滤波器被布置为对模拟域中的通信信号执行滤波操作。 处理装置包括信号处理电路和数字滤波器。 信号处理电路用于对数字域和模拟域之间的通信信号进行变换。 数字滤波器耦合到信号处理电路，并用于对数字域中的通信信号执行滤波操作，其中数字滤波器的频率响应被布置成至少根据模拟滤波器的频率响应来补偿 参考模拟滤波器的频率相关特性产生的补偿参数。

公开(公告)号：US20050275490A1

公开(公告)日：2005-12-15

申请号：US10864158

申请日：2004-06-09

申请人： Louis Luh

发明人： Louis Luh

IPC分类号： H03H11/10 ,  H03H11/52

CPC分类号： H03H11/10 ,  H03H7/03 ,  H03H11/52

摘要： A Q enhancement circuit and method. In a most general embodiment, the inventive circuit is adapted for use with a component having a parasitic resistance R3 and a first resistance R1 disposed in series with the component and an arrangement for making the resistance a negative resistance. In the illustrative embodiment, first and second inductors constitute the components for which Q enhancement is effected. A resistance R1 is disposed in series with the first inductor and is equal to the parasitic resistance RL1 thereof. Likewise, a second resistance R2 is disposed in series with the second inductor and is equal to the parasitic resistance RL2 thereof. The Q enhancement circuit further includes a first transistor Q1 and a second transistor Q2.

摘要翻译： Q增强电路及方法。 在最一般的实施例中，本发明的电路适用于具有与元件串联设置的寄生电阻R 3 3和第一电阻R 1 1的元件， 使电阻成为负电阻的布置。 在说明性实施例中，第一和第二电感器构成实现Q增强的部件。 电阻R 1＆lt; 1＆gt;与第一电感器串联布置，并且等于其寄生电阻R L1 L1。 类似地，第二电阻R 2 2与第二电感器串联设置，并且等于其寄生电阻R L2 L2。 Q增强电路还包括第一晶体管Q 1和第二晶体管Q 2。

公开(公告)号：US20050250467A1

公开(公告)日：2005-11-10

申请号：US11182580

申请日：2005-07-15

申请人： Harry Contopanagos ,  Chryssoula Kyriazidou ,  Jacob Rael ,  Ahmadreza Rofougaran

发明人： Harry Contopanagos ,  Chryssoula Kyriazidou ,  Jacob Rael ,  Ahmadreza Rofougaran

IPC分类号： H03H7/01 ,  H03H11/32 ,  H03H11/52 ,  H04B1/18 ,  H04B17/00 ,  H04B1/16

CPC分类号： H03H7/03 ,  H03H7/0115 ,  H03H7/175 ,  H03H7/1758 ,  H03H7/1766 ,  H03H7/1775 ,  H03H7/425 ,  H03H11/52 ,  H03H2007/013 ,  H04B1/18

摘要： An unconditionally stable on-chip filter includes a filtering section and at least one negative resistance module. The filtering section is operably coupled to filter a signal and includes realizable integrated circuit passive components. The at least one negative resistance module is operably coupled to compensate for integrated circuit losses of the filtering section. The realizable integrated circuit passive components have values that are robust, in comparison to parasitic values, have minimal integrated circuit real estate, and provide realizable values for various integrated circuit manufacturing processes including CMOS technology.

摘要翻译： 无条件稳定的片上滤波器包括滤波部分和至少一个负电阻模块。 滤波部分可操作地耦合以对信号进行滤波并且包括可实现的集成电路无源部件。 至少一个负电阻模块可操作地耦合以补偿滤波部分的集成电路损耗。 可实现的集成电路无源元件具有鲁棒性，与寄生值相比具有最小的集成电路空间，并为包括CMOS技术在内的各种集成电路制造工艺提供可实现的值。

公开(公告)号：US06822434B2

公开(公告)日：2004-11-23

申请号：US10354250

申请日：2003-01-28

申请人： James William Haslett ,  Bogdan Alexandru Georgescu ,  John Godfrey McRory ,  Holly Evelyn Pekau

发明人： James William Haslett ,  Bogdan Alexandru Georgescu ,  John Godfrey McRory ,  Holly Evelyn Pekau

IPC分类号： G01R3300

CPC分类号： H03H7/09 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/1228 ,  H03B5/1296 ,  H03F1/02 ,  H03F1/223 ,  H03F3/191 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/537 ,  H03H7/0115 ,  H03H7/03 ,  H03H7/075 ,  H03H7/12 ,  H03H7/1775

摘要： A monolithic transformer compensated circuit with enhanced quality factor without significantly increasing noise levels is presented in this disclosure. The technique uses a monolithic transformer and a current source driving current into the transformer secondary winding to achieve loss compensation in the transformer primary. An ac current which is proportional to, and in phase with the voltage applied to the primary winding can be used to achieve theoretically perfect loss compensation at a given frequency in the RF (GHz) frequency range. Examples of circuit applications that are particularly suited to the technique include Voltage Controlled Oscillators (VCO's), Low Noise Amplifiers (LNA's) and Filters. The technique has the added advantage of reducing power consumption in some applications.

摘要翻译： 本公开中提出了具有增强的品质因数而不显着增加噪声水平的单片式变压器补偿电路。 该技术使用单片变压器和电流源驱动电流进入变压器次级绕组，以实现变压器初级中的损耗补偿。 可以使用与施加到初级绕组的电压成比例并与其同相的交流电，以在RF（GHz）频率范围内的给定频率实现理论上完美的损耗补偿。 特别适用于该技术的电路应用的示例包括压控振荡器（VCO），低噪声放大器（LNA）和滤波器。 该技术具有在一些应用中降低功耗的附加优点。