公开(公告)号：US20150212194A1

公开(公告)日：2015-07-30

申请号：US14681163

申请日：2015-04-08

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hidenori OBIYA ,  Ryuken MIZUNUMA ,  Shinya MIZOGUCHI ,  Atsuyuki YUASA ,  Shinya HITOMI ,  Hisao HAYAFUJI

IPC: G01S7/02 ,  G01S13/02

CPC classification number: G01S7/02 ,  G01S7/038 ,  G01S13/02 ,  H04B1/525

Abstract: A reflected signal detector (12) detects the amplitude and the phase of a reflected signal and outputs detection signals. A control circuit (13) adjusts first control signals and second control signals on the basis of the detection signals. A first cancel signal output portion (9) adjusts a first cancel signal so that the first cancel signal has a phase opposite to that of the reflected signal and has the same amplitude as that of the reflected signal using the first control signals. A second cancel signal output portion (10) adjusts a second cancel signal so that the second cancel signal has a phase opposite to that of a leakage signal and has the same amplitude as that of the leakage signal using the second control signals. A combining portion (11) combines a reception signal including noise signals with the first and second cancel signals.

Abstract translation: 反射信号检测器（12）检测反射信号的幅度和相位，并输出检测信号。 控制电路（13）根据检测信号调整第一控制信号和第二控制信号。 第一消除信号输出部分（9）调整第一消除信号，使得第一消除信号具有与反射信号相反的相位，并且具有与使用第一控制信号的反射信号相同的幅度。 第二消除信号输出部分（10）调整第二消除信号，使得第二消除信号具有与泄漏信号相反的相位，并且具有与使用第二控制信号的泄漏信号相同的幅度。 组合部分（11）将包括噪声信号的接收信号与第一和第二消除信号组合。

公开(公告)号：US20200295437A1

公开(公告)日：2020-09-17

申请号：US16816958

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

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. The second surface region of the at least one main surface is exposed.

公开(公告)号：US20200243957A1

公开(公告)日：2020-07-30

申请号：US16749316

申请日：2020-01-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hideki UEDA ,  Tsubasa NISHIDA ,  Shinya MIZOGUCHI

IPC: H01Q1/38 ,  H01Q21/06 ,  H01Q1/00

Abstract: An antenna module includes a dielectric substrate, a plurality of patch antennas, an integrated circuit, a connector, a heat-radiating member, and connection members. The dielectric substrate includes a first substrate part, a second substrate part, and a third substrate part. The second substrate part is bent toward a rear surface of the first substrate part with respect to the front surface of the first substrate part and the third substrate part is bent toward the rear surface of the first substrate part with respect to the front surface of the first substrate part.

公开(公告)号：US20180337652A1

公开(公告)日：2018-11-22

申请号：US16049860

申请日：2018-07-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Shinya MIZOGUCHI

IPC: H03H9/00 ,  H04B1/525 ,  H03H9/72 ,  H03H9/70 ,  H03H7/01 ,  H03H9/25 ,  H03H9/10 ,  H03H7/38 ,  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：US20180062615A1

公开(公告)日：2018-03-01

申请号：US15794073

申请日：2017-10-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Masanori KATO ,  Shinya MIZOGUCHI ,  Yukiteru SUGAYA

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

CPC classification number: H03H9/1455 ,  H03H7/09 ,  H03H9/0542 ,  H03H9/0557 ,  H03H9/14597 ,  H03H9/25 ,  H03H9/6483 ,  H03H9/725

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：US20160156328A1

公开(公告)日：2016-06-02

申请号：US15016865

申请日：2016-02-05

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Morio TAKEUCHI ,  Shinya MIZOGUCHI

IPC: H03H9/00 ,  H03H9/64 ,  H03H9/72

CPC classification number: H03H9/725 ,  H03H9/0009 ,  H03H9/0061 ,  H03H9/1042 ,  H03H9/52 ,  H03H9/605 ,  H03H9/64 ,  H03H9/6433 ,  H03H9/6483

Abstract: A filter unit of a high-frequency module includes a plurality of SAW resonators connected in series between a first series connection terminal and a second series connection terminal, first shunt connection terminals, a second shunt connection terminal, and a plurality of SAW resonators. A connection line interconnecting the SAW resonators is connected to the first shunt connection terminal through one of the SAW resonators. The first shunt connection terminal is connected to a ground through an inductor. A matching circuit is connected between the second series connection terminal and a second external connection terminal. The matching circuit is inductively or capacitively coupled to the inductor.

Abstract translation: 高频模块的滤波器单元包括串联连接在第一串联连接端子和第二串联连接端子之间的多个SAW谐振器，第一分路连接端子，第二分路连接端子和多个SAW谐振器。 互连SAW谐振器的连接线通过SAW谐振器之一连接到第一分路连接端子。 第一并联连接端子通过电感器连接到地。 匹配电路连接在第二串联连接端子和第二外部连接端子之间。 匹配电路感应或电容耦合到电感器。