公开(公告)号：US20200228074A1

公开(公告)日：2020-07-16

申请号：US16832295

申请日：2020-03-27

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Yusuke NANIWA ,  Hideki MUTO ,  Hiroshi NISHIKAWA ,  Takashi WATANABE ,  Akiko ITABASHI

IPC: H03F3/195 ,  H04B1/403 ,  H05K1/16

Abstract: A radio frequency circuit includes a substrate, a first terminal disposed on a first principal surface of the substrate, a second terminal disposed on the first principal surface, a first-surface mounted component disposed on the first principal surface or inside the substrate, and a second-surface mounted component disposed on a second principal surface of the substrate which is opposite the first principal surface. A radio-frequency signal, which is input to the first terminal, is transmitted, for output from the second terminal, so as to make at least one round trip between the first principal surface and the second-surface mounted component, which is disposed on the second principal surface, through wiring lines disposed in the substrate.

公开(公告)号：US20210391640A1

公开(公告)日：2021-12-16

申请号：US17412621

申请日：2021-08-26

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryuken MIZUNUMA ,  Satoshi TANAKA ,  Yasuhisa YAMAMOTO ,  Akiko ITABASHI

IPC: H01Q1/24 ,  H01Q1/22 ,  H04B7/0413 ,  G06F1/16

Abstract: A communication device includes: a first body including a first display portion; a second body including a second display portion; a communication circuit that carries out millimeter-wave band communication; and one or more millimeter-wave band communication antennas provided in at least one of the first body and the second body.

公开(公告)号：US20210359758A1

公开(公告)日：2021-11-18

申请号：US17317087

申请日：2021-05-11

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryuken MIZUNUMA ,  Satoshi TANAKA ,  Yasuhisa YAMAMOTO ,  Akiko ITABASHI

IPC: H04B10/2575 ,  H04B7/15

Abstract: A communication network system is a communication network system that distributes information to a plurality of terminals inside a closed space. The communication network system includes a network server and a plurality of lighting fixtures each having an antenna that transmits and receives millimeter-wave-band communication signals to and from the terminals.

公开(公告)号：US20210075495A1

公开(公告)日：2021-03-11

申请号：US17009853

申请日：2020-09-02

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Ryuken MIZUNUMA ,  Satoshi TANAKA ,  Yasuhisa YAMAMOTO ,  Akiko ITABASHI

IPC: H04B7/15 ,  H04B17/318 ,  H04W4/80

Abstract: A communication terminal capable of at least millimeter-wave communication and microwave communication is provided. The communication terminal includes a repeater that relays communication between a first communication terminal and a second communication terminal by using millimeter-wave communication. Such a communication terminal is capable of maintaining good millimeter-wave communication between terminals.