公开(公告)号：US20170222617A1

公开(公告)日：2017-08-03

申请号：US15485252

申请日：2017-04-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya MIZOGUCHI

IPC: H03H9/00 ,  H03H9/25 ,  H03H9/64

CPC classification number: H03H9/0009 ,  H03H7/01 ,  H03H7/38 ,  H03H9/1071 ,  H03H9/25 ,  H03H9/64 ,  H03H9/706 ,  H03H9/725 ,  H04B1/525

Abstract: A high-frequency module includes a propagation path that has a simple structure and improves filter characteristics by causing an inductor and a matching network to electromagnetic field couple with each other such that attenuation characteristics outside of a frequency band of a transmission signal are improved without increasing the size of the high-frequency module. In addition, unintended electromagnetic field coupling between a first filter and the inductor is significantly reduced or prevented by a shield electrode. Therefore, unintended propagation of a high-frequency signal is significantly reduced or prevented. Therefore, the attenuation characteristics outside of the frequency band of transmission signal input to the transmission terminal are improved more effectively.

公开(公告)号：US20170019138A1

公开(公告)日：2017-01-19

申请号：US15278362

申请日：2016-09-28

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya HITOMI ,  Hidenori OBIYA ,  Shinya MIZOGUCHI

IPC: H04B1/18 ,  H04B1/40 ,  H04B1/04 ,  H04L5/14

CPC classification number: H04B1/18 ,  H04B1/0458 ,  H04B1/40 ,  H04L5/1461

Abstract: An amplitude phase parameter calculator in a control unit or circuit in a transmission-reception apparatus calculates an amplitude difference voltage and a phase difference voltage between a transmission detection signal and a reflected detection signal. Adjustment factors including a combination of an amplitude control voltage and a phase control voltage corresponding to a combination of the amplitude difference voltage and the phase difference voltage are discretely stored in an adjustment factor determination table in the control unit. An adjustment factor determiner in the control unit determines the adjustment factors using the combination of the amplitude difference voltage and the phase difference voltage and the adjustment factor determination table. If the adjustment factors do not exist in the adjustment factor determination table, the adjustment factor determiner calculates target adjustment factors using the relationship among the adjustment factors stored in the table, the amplitude difference voltage, and the phase difference voltage.

Abstract translation: 发送接收装置中的控制单元或电路中的幅度相位参数计算器计算发送检测信号和反射检测信号之间的振幅差电压和相位差电压。 包括与振幅差电压和相位差电压的组合相对应的幅度控制电压和相位控制电压的组合的调整因素离散地存储在控制单元中的调整因子确定表中。 控制单元中的调节因子确定器使用振幅差电压和相位差电压和调整因子确定表的组合来确定调整因子。 如果调节因子确定表中不存在调节因子，则调整因子确定器使用存储在表中的调整因子，振幅差电压和相位差电压之间的关系来计算目标调整因子。

公开(公告)号：US20160126982A1

公开(公告)日：2016-05-05

申请号：US14993463

申请日：2016-01-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hisao HAYAFUJI ,  Hidenori OBIYA ,  Shinya MIZOGUCHI

IPC: H04B1/00 ,  H04B1/04

CPC classification number: H04B1/0057 ,  H04B1/0458 ,  H04B1/0483 ,  H04B1/18

Abstract: A front-end circuit includes a multiplexer, a circulator, reception ports, and variable filters. A port in the multiplexer is connected to an antenna. A port in the circulator is connected to a port in the multiplexer. The reception ports are connected to a port in the circulator with the variable filters interposed therebetween. The multiplexer outputs a communication signal having a frequency in a low band to the port and outputs a communication signal having a frequency in a middle band to a port. Each of the low band and the middle band includes a plurality of frequency bands. The middle band is a range of frequencies higher than those in the low band and does not overlap the low band.

Abstract translation: 前端电路包括多路复用器，循环器，接收端口和可变滤波器。 多路复用器中的端口连接到天线。 循环器中的端口连接到多路复用器中的端口。 接收端口连接到循环器中的端口，其间插入可变滤波器。 多路复用器将具有低频频率的通信信号输出到端口，并将具有中频带的频率的通信信号输出到端口。 低频带和中频带中的每一个包括多个频带。 中间频带是比低频段高的频率范围，并且不与低频带重叠。

公开(公告)号：US20190097675A1

公开(公告)日：2019-03-28

申请号：US16199619

申请日：2018-11-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya MIZOGUCHI ,  Masanori HIGASHIDE

IPC: H04B1/525 ,  H04B1/48 ,  H04B1/10

Abstract: A duplexer includes a 90° hybrid connected to an antenna terminal, a 90° hybrid connected to a terminating resistor, a transmission-side filter connected to the 90° hybrid connected to the antenna terminal, and notch filters connected to both of the 90° hybrids and mutually having the same filter characteristics, where each of the notch filters is a band elimination filter configured to reflect a radio frequency signal of a transmission band and allow a radio frequency signal of a band other than the transmission band to pass through.

公开(公告)号：US20180287582A1

公开(公告)日：2018-10-04

申请号：US15997779

申请日：2018-06-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Naoya MATSUMOTO ,  Syuichi ONODERA ,  Kouichi UENO ,  Shinya MIZOGUCHI ,  Masahide TAKEBE

IPC: H03H9/72 ,  H03H7/46 ,  H03H9/25 ,  H04B1/525 ,  H03H9/70 ,  H03H9/02 ,  H03H9/64

Abstract: A high-frequency module that performs filtering of signals transmitted and received through an antenna includes an antenna terminal, a transmission terminal, a reception terminal, a reception filter connected between the antenna terminal and the reception terminal, a transmission filter connected between the antenna terminal and the transmission terminal, a first element connected between the antenna terminal and the transmission filter, and a second element connected in series between the transmission terminal and the transmission filter. The first element and the second element are capacitively coupled to each other.

公开(公告)号：US20160269072A1

公开(公告)日：2016-09-15

申请号：US15090686

申请日：2016-04-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidenori OBIYA ,  Shinya MIZOGUCHI ,  Shinya HITOMI

IPC: H04B1/525 ,  H04L5/14

CPC classification number: H04B1/525 ,  H04L5/001 ,  H04L5/14 ,  H04L2027/0051

Abstract: A transmission-reception device includes an antenna duplexer, an antenna, and first and second transmission-reception circuits. A demultiplexer is connected between the first transmission-reception circuit and the antenna duplexer, and a multiplexer is connected between the second transmission-reception circuit and the antenna duplexer. A signal adjusting unit is connected between the demultiplexer and the multiplexer. The amplitude and phase of a third harmonic signal of a first transmission signal reflected by the antenna are detected. The signal adjusting unit adjusts the amplitude and phase of the third harmonic signal demultiplexed by the demultiplexer on the basis of the detection results, and outputs a cancel signal. The multiplexer synthesizes and hence cancels the third harmonic signal reflected by the antenna and the cancel signal with each other.

Abstract translation: 发送接收装置包括天线双工器，天线以及第一和第二发送接收电路。 解复用器连接在第一发送接收电路和天线双工器之间，多路复用器连接在第二发送接收电路和天线双工器之间。 信号调整单元连接在解复用器和多路复用器之间。 检测由天线反射的第一传输信号的三次谐波信号的振幅和相位。 信号调整单元根据检测结果调整由解复用器解复用的三次谐波信号的振幅和相位，并输出取消信号。 多路复用器合成并消除天线反射的三次谐波信号和消除信号。

公开(公告)号：US20140038531A1

公开(公告)日：2014-02-06

申请号：US14050406

申请日：2013-10-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hisao HAYAFUJI ,  Shinya MIZOGUCHI ,  Hidenori OBIYA

IPC: H04B1/40

CPC classification number: H04B1/40 ,  H04B1/0057

Abstract: A high-frequency front-end circuit includes a first variable filter and a second variable filter. One end of each of the variable filters is connected to a common terminal. The other end of the first variable filter is connected to a transmission individual terminal and the other end of the second variable filter is connected to a reception individual terminal. At the time of transmission of a transmission signal, the impedance of the second variable filter is adjusted such that the impedance seen on the second variable filter side from a connection point between the variable filters is open. At the time of transmission of a reception signal, the impedance of the first variable filter is adjusted such that the impedance seen on the first variable filter side from a connection point between the variable filters is open.

Abstract translation: 高频前端电路包括第一可变滤波器和第二可变滤波器。 每个可变滤波器的一端连接到公共端子。 第一可变滤波器的另一端连接到传输单独端子，第二可变滤波器的另一端连接到接收单独端子。 在发送发送信号时，调整第二可变滤波器的阻抗，使得在可变滤波器之间的连接点处在第二可变滤波器侧看到的阻抗是断开的。 在发送接收信号时，调整第一可变滤波器的阻抗，使得在可变滤波器之间的连接点处的第一可变滤波器侧所看到的阻抗是断开的。

公开(公告)号：US20200295436A1

公开(公告)日：2020-09-17

申请号：US16816660

申请日：2020-03-12

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideki UEDA ,  Shinya MIZOGUCHI ,  Tsubasa NISHIDA ,  Shinichiro BANBA ,  Osamu YAMAGUCHI ,  Akihiro MURANAKA ,  Koji YASOJIMA

IPC: H01Q1/22 ,  H01Q1/38 ,  H01Q21/30 ,  H01Q5/357 ,  H01Q9/04 ,  H01Q9/30 ,  H01Q19/00 ,  G02B27/01

Abstract: A radiation conductor is constructed of a metal plate having a pair of main surfaces pointing in opposite directions. Each main surface of the pair of main surfaces includes a first surface region that includes at least part of a peripheral edge portion of the main surface. At least one main surface of the pair of main surfaces includes a second surface region that is a region other than the first surface region. A dielectric member holds the radiation conductor in such a manner that the first surface region of each main surface of the pair of main surfaces is sandwiched between portions of the dielectric member in a thickness direction of the radiation conductor. A housing supports and accommodates the dielectric member. The second surface region of the at least one main surface is exposed.

公开(公告)号：US20190379350A1

公开(公告)日：2019-12-12

申请号：US16545243

申请日：2019-08-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masanori KATO ,  Shinya MIZOGUCHI ,  Yukiteru SUGAYA

IPC: H03H9/145 ,  H03H9/25 ,  H03H9/72

Abstract: A transmission filter in a high frequency module includes serial arm resonators electrically connected in series to a serial arm electrically connecting a shared terminal and a transmission terminal, parallel arm resonators each electrically connected in series to each of parallel arms electrically connecting the serial arm and a ground, a first inductor electrically connected between the ground and a connection end electrically connecting at least the two parallel arm resonators of the parallel arm resonators, and a second inductor electrically connected between the ground and one parallel arm resonator different from the at least two parallel arm resonators of the parallel arm resonators. The second inductor is electromagnetic field coupled to at least one of an antenna side matching element, a transmission side matching element, and a portion of the serial arm in the transmission filter. The first and second inductors obstruct electromagnetic field coupling therebetween.

公开(公告)号：US20170077896A1

公开(公告)日：2017-03-16

申请号：US15359754

申请日：2016-11-23

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yukiteru SUGAYA ,  Shinya MIZOGUCHI

IPC: H03H7/46 ,  H03H7/38 ,  H03H9/54 ,  H03H9/70 ,  H03H9/64 ,  H03H7/01 ,  H03H9/72

CPC classification number: H03H7/463 ,  H03H7/0138 ,  H03H7/09 ,  H03H7/38 ,  H03H9/0542 ,  H03H9/0566 ,  H03H9/54 ,  H03H9/64 ,  H03H9/706 ,  H03H9/725 ,  H04B1/52

Abstract: A radio frequency module includes a transmission terminal, a transmission filter connected to the transmission terminal, a common terminal, a reception filter which is connected to the common terminal, a reception terminal, a branch point to which the common terminal, the transmission filter, and the reception filter are connected, a transmission path connecting the transmission terminal and the branch point, a reception path connecting the reception terminal and the branch point, a common path connecting the common terminal and the branch point, a matching circuit connected to the common path, and an inductor circuit that includes a first inductor that defines a propagation path through electromagnetic coupling to at least one of the transmission path, the common path, the matching circuit, and the reception path, and a second inductor that is positioned so as not to be electromagnetically coupled to the transmission path, the common path, the matching circuit, or the reception path.

Abstract translation: 射频模块包括发送终端，连接到发送终端的发送滤波器，公共终端，连接到公共终端的接收滤波器，接收终端，公共终端，发送滤波器， 连接接收滤波器，连接发送终端和分支点的传输路径，连接接收终端和分支点的接收路径，连接公共终端和分支点的公共路径，连接到公共端点的匹配电路 路径和电感器电路，其包括第一电感器，其将通过电磁耦合的传播路径定义为至少一个传输路径，公共路径，匹配电路和接收路径，以及第二电感器，其被定位成 不要电磁耦合到传输路径，公共路径，匹配电路或接收路径。