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公开(公告)号：US20240333224A1
公开(公告)日：2024-10-03
申请号：US18611116
申请日：2024-03-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Naohide TOMITA , Takeshi KOGURE , Taichi YAMAGUCHI , Atsuya HIRONO
CPC classification number: H03F1/0238 , H03F3/245 , H04B1/04 , H03F2200/105 , H03F2200/451
Abstract: A tracker circuit is provided that includes a first switched-capacitor circuit configured to generate a plurality of first discrete voltages, a second switched-capacitor circuit configured to generate a plurality of second discrete voltages, and a supply modulator configured to selectively output at least one of the plurality of first discrete voltages and the plurality of second discrete voltages to a power amplifier. One of the plurality of first discrete voltages has a level different from levels of the plurality of second discrete voltages, and one of the plurality of second discrete voltages has a level different from levels of the plurality of first discrete voltages.
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2.发明公开公开(公告)号：US20230402979A1
公开(公告)日：2023-12-14
申请号：US18448733
申请日：2023-08-11
Applicant: Murata Manufacturing Co,. Ltd.
Inventor： Takeshi KOGURE
IPC: H03F3/24
CPC classification number: H03F3/245
Abstract: A tracker module is provided that includes a substrate, a tracker component, and multiple external connection terminals. The tracker component generates voltage. The multiple external connection terminals are on a second main surface of the substrate. The multiple external connection terminals include three or more first output terminals that correspond to three or more first power amplifiers of the multiple power amplifiers. Each of the three or more first output terminals is connected to the tracker component and is a terminal connected to the corresponding first power amplifier of the three or more first power amplifiers. The three or more first output terminals are arranged along an outermost periphery on the second main surface of the substrate.
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3.发明公开公开(公告)号：US20230353097A1
公开(公告)日：2023-11-02
申请号：US18351025
申请日：2023-07-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi KOGURE
CPC classification number: H03F1/0233 , H03F3/245 , H03F2200/105 , H03F2200/171 , H03F2200/451
Abstract: A tracker module is provided that includes a substrate, a tracker component, a filter, a first output terminal, and a second output terminal. The first output terminal is disposed on a second main surface of the substrate and is connected to a first power amplifier. The second output terminal is disposed on the second main surface of the substrate and is connected to a second power amplifier. The first output terminal is connected to the tracker component via the filter. The second output terminal is connected to the tracker component. The first output terminal overlaps a rectangular region in a plan view in a thickness direction of the substrate that encompasses an inductor and a capacitor of the filter.
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公开(公告)号：US20230075733A1
公开(公告)日：2023-03-09
申请号：US18055957
申请日：2022-11-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi KOGURE , Tomohide ARAMATA
Abstract: A tracker module is provided that includes a second substrate that is separate from a first substrate, a tracker component, and a low pass filter. A power amplifier is disposed on or in the first substrate. Moreover, the tracker component supplies a power supply voltage to the power amplifier. The low pass filter is disposed on a path between an output terminal of the tracker component and the power amplifier. The tracker component and the low pass filter are disposed on or in the second substrate.
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公开(公告)号：US20230072796A1
公开(公告)日：2023-03-09
申请号：US18056016
申请日：2022-11-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi KOGURE
IPC: H03F3/24
Abstract: A tracker module is provided that includes an external connection terminal, a tracker, and a variable low pass filter. The external connection terminal is connected to a power amplifier. The tracker supplies a power supply voltage to the power amplifier via the external connection terminal by using an envelope tracking method. The variable low pass filter is disposed on a path between the tracker and the external connection terminal. In the variable low pass filter, a first block includes at least one electronic component. A second block is a block that varies a cutoff frequency of the variable low pass filter. The second block is integrated with the tracker into one package. The first block is disposed separately from the tracker.
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Patent Agency Ranking
公开(公告)号：US20250070720A1
公开(公告)日：2025-02-27
申请号：US18943309
申请日：2024-11-11
Applicant: Murata Manufacturing Co., Ltd.
Inventor： John HOVERSTEN , David PERREAULT , Yevgeniy TKACHENKO , Takeshi KOGURE , Toshiki MATSUI , Yuuki FUKUDA
Abstract: A tracker circuit includes a pre-regulator circuit configured to convert an input voltage into a regulated voltage using a power inductor, a switched-capacitor circuit configured to generate a plurality of discrete voltages, based on the regulated voltage, and a power modulation circuit configured to select at least one voltage from the plurality of discrete voltages and output the at least one voltage to a first output terminal. Further, the tracker circuit includes one or more bypass paths configured to bypass at least the switched-capacitor circuit and the power modulation circuit, and to provide a second supply voltage from the pre-regulator circuit to a second output terminal, the second supply voltage is output by the second output terminal.
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公开(公告)号：US20220385314A1
公开(公告)日：2022-12-01
申请号：US17818388
申请日：2022-08-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi KOGURE , Kenichi SHIMAMOTO , Yoshiki KOGUSHI , Toshiki MATSUI
Abstract: A power amplifier circuit is provided that includes a transmission circuit, a control circuit, a first terminal, and a second terminal. The transmission circuit includes an amplifier element that amplifies power of a radio frequency signal. The control circuit controls the transmission circuit. The first terminal receives a serial data signal that is based on a serial data standard. The second terminal receives a digital signal different from the serial data signal. The control circuit then controls the transmission circuit in response to the digital signal received from the second terminal.
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公开(公告)号：US20210328618A1
公开(公告)日：2021-10-21
申请号：US17235309
申请日：2021-04-20
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kenji TAHARA , Seikoh ONO , Kunihiro WATANABE , Hiroshi MASUDA , Naohide TOMITA , Takeshi KOGURE , Yusuke TANAKA
IPC: H04B1/44
Abstract: A radio-frequency signal transmitting and receiving circuit includes a power amplifier, a transmission band pass filter configured to transmit a radio-frequency input signal, a first reception band pass filter configured to transmit a first radio-frequency reception signal, a first low-noise amplifier configured to amplify the first radio-frequency reception signal and output a first radio-frequency output signal, a first transmitting and receiving filter having a first end and a second end, the first end being electrically connected to a first antenna terminal, and a switch configured to electrically connect the transmission band pass filter to the second end of the first transmitting and receiving filter to output the radio-frequency input signal to the first antenna terminal and electrically connect the second end of the first transmitting and receiving filter to the first reception band pass filter to receive the first radio-frequency reception signal from the first antenna terminal.
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公开(公告)号：US20180269922A1
公开(公告)日：2018-09-20
申请号：US15920860
申请日：2018-03-14
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi ABIRU , Koji YAMASHITA , Takeshi KOGURE
Abstract: A front-end module includes a duplexer, a band pass filter, and a terminating circuit element. A first signal path connects an output terminal of a power amplifier and a transmit node of the duplexer. The band pass filter is disposed on a second signal path between a branch point and a ground. The second signal path branches off from the first signal path at the branch point. The band pass filter has frequency characteristics in which, among frequency components of a transmit signal output from the power amplifier, frequency components that overlap at least part of the pass band of a receive filter of the duplexer are allowed to pass through the band pass filter. The terminating circuit element is disposed on the second signal path between the band pass filter and the ground. The terminating circuit element attenuates a transmit signal passing through the band pass filter.
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公开(公告)号：US20170264337A1
公开(公告)日：2017-09-14
申请号：US15607734
申请日：2017-05-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Takeshi KOGURE , Atsushi ONO , Hiroyuki NAGAMORI
CPC classification number: H04B1/525 , G01S1/20 , H03F1/02 , H03F3/24 , H03J7/186 , H04B1/0057 , H04B1/04 , H04B1/123 , H04B1/44 , H04B2001/045
Abstract: A radio-frequency module includes a first transmitter-and-receiver that transmits and receives a signal in a first band, and a second transmitter-and-receiver that transmits and receives a signal in a second band higher than the first band. The first transmitter-and-receiver includes a first amplifier circuit and a first separator circuit and the second transmitter-and-receiver includes a second amplifier circuit and a second separator circuit. The first separator is located on a substrate between the first amplifier circuit and the second separator circuit, such that the first separator circuit is spatially interposed between the first amplifier circuit and the second separator circuit.
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