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公开(公告)号：US20240332778A1
公开(公告)日：2024-10-03
申请号：US18742270
申请日：2024-06-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kazuhito OSAWA , Ryangsu KIM , Kenta SEKI
Abstract: A directional coupler includes a main line, a first sub line, a second sub line, a termination circuit, a first phase shifter circuit, a first selector switch, and a second selector switch. The termination circuit terminates one of the first sub line and the second sub line. The first phase shifter circuit is disposed on a first signal path between the first sub line and the second sub line. The first selector switch performs switching between connection and non-connection between the first sub line and the first phase shifter circuit. The second selector switch performs switching between connection and non-connection between the first phase shifter circuit and the second sub line.
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公开(公告)号：US20210344096A1
公开(公告)日：2021-11-04
申请号：US17244124
申请日：2021-04-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Ryangsu KIM , Kazuhito OSAWA , Katsuya SHIMIZU
Abstract: A directional coupler includes a main line, a sub-line, a coupling terminal, a terminal circuit, a first switching circuit, and a second switching circuit. The first switching circuit and the second switching circuit respectively connects the first end and the second end of the sub-line alternately to the coupling terminal and to the terminal circuit. The first switching circuit connects the first end to the coupling terminal at a time that differs from a time at which the first switching circuit disconnects the first end from the terminal circuit. The first switching circuit disconnects the first end from the coupling terminal at a time that differs from a time at which the first switching circuit connects the first end to the terminal circuit.
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Patent Agency Ranking
公开(公告)号：US20240347890A1
公开(公告)日：2024-10-17
申请号：US18754898
申请日：2024-06-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Ryangsu KIM , Kazuhito OSAWA
Abstract: Degrees of a change in an insertion loss of a main line and a change in a phase of a signal are small regardless of whether or not detection is performed by using a sub-line. A directional coupler includes a main line, a sub-line, a first termination circuit, a second termination circuit, and a switch. The sub-line has a first end and a second end. The first termination circuit terminates the first end and the second end of the sub-line. The switch switches connection and disconnection between the sub-line and the first termination circuit.
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公开(公告)号：US20220407211A1
公开(公告)日：2022-12-22
申请号：US17821492
申请日：2022-08-23
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Yasushi SHIGENO , Daisuke TOKUDA , Ryangsu KIM , Katsuya SHIMIZU , Kazuhito OSAWA
IPC: H01P5/18
Abstract: A directional coupler includes a main line, a first sub-line to be electromagnetically coupled to the main line, a second sub-line to be electromagnetically coupled to the main line, and a coupling terminal configured to output a detection signal corresponding to a radio frequency signal that is transmitted through the main line, the first sub-line and the second sub-line are different in length from each other, and connection between the first sub-line and the coupling terminal and connection between the second sub-line and the coupling terminal are switched.
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公开(公告)号：US20220077560A1
公开(公告)日：2022-03-10
申请号：US17461099
申请日：2021-08-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Ryangsu KIM , Kazuhito OSAWA
IPC: H01P5/18
Abstract: A directional coupler includes a multilayer body, a conductor (31), and a conductor (32). The conductor (31) is a conductor that is arranged in an insulating layer (21) of the multilayer body and that extends in a certain shape. The conductor (32) is arranged on a side of an insulating layer (22) of the multilayer body opposite the insulating layer (21). The conductor (32) runs parallel to the conductor (31) and is electromagnetically coupled to the conductor (31). The conductor (32) has a winding shape with one or more rounds, and has a conductor portion (321) and a conductor portion (325) that are arranged adjacent to each other with a spacing in a direction orthogonal to a running parallel direction. In plan view of the multilayer body, the conductor (31) is arranged between the conductor portion (321) and the conductor portion (325).
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公开(公告)号：US20210036396A1
公开(公告)日：2021-02-04
申请号：US16941862
申请日：2020-07-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Yasushi SHIGENO , Daisuke TOKUDA , Ryangsu KIM , Katsuya SHIMIZU , Kazuhito OSAWA
IPC: H01P5/18
Abstract: A directional coupler includes a main line, a first sub-line to be electromagnetically coupled to the main line, a second sub-line to be electromagnetically coupled to the main line, and a coupling terminal configured to output a detection signal corresponding to a radio frequency signal that is transmitted through the main line, the first sub-line and the second sub-line are different in length from each other, and connection between the first sub-line and the coupling terminal and connection between the second sub-line and the coupling terminal are switched.
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公开(公告)号：US20210036395A1
公开(公告)日：2021-02-04
申请号：US16941577
申请日：2020-07-29
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenta SEKI , Yasushi SHIGENO , Daisuke TOKUDA , Ryangsu KIM , Katsuya SHIMIZU , Kazuhito OSAWA
Abstract: A directional coupler includes a main line through which a signal is transmitted, first and second sub-lines that are selectively coupled to the main line, and a common output port that outputs a detection signal generated by the signal transmitted through the main line, wherein a first degree of coupling between the main line and the first sub-line is different than a second degree of coupling between the main line and the second sub-line.
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