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公开(公告)号：US11916520B2
公开(公告)日：2024-02-27
申请号：US17805277
申请日：2022-06-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kiichiro Takenaka , Satoshi Arayashiki , Satoshi Sakurai
CPC classification number: H03F1/0288 , H03F3/195 , H03F3/211 , H03F3/245 , H04B1/0458 , H04B1/44 , H03F2200/102 , H03F2200/219 , H03F2200/27 , H03F2200/294 , H03F2200/429 , H03F2200/504
Abstract: A Doherty amplifier including a main amplifier and a peak amplifier is mounted on a package substrate. A low noise amplifier is further mounted on the package substrate. A transmit/receive switch switches in terms of time between a transmission connection state in which an output signal of the Doherty amplifier is supplied to an antenna and a reception connection state in which a signal received by the antenna is inputted to the low noise amplifier.
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公开(公告)号：US11777553B2
公开(公告)日：2023-10-03
申请号：US17663585
申请日：2022-05-16
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Sakurai , Satoshi Arayashiki , Satoshi Tanaka , Kyoichi Hirayama , Tomohito Ito , Kenta Kurahashi
CPC classification number: H04B1/48 , H04B1/0057
Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
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公开(公告)号：US11658622B2
公开(公告)日：2023-05-23
申请号：US17207879
申请日：2021-03-22
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kazuo Watanabe , Yusuke Tanaka , Satoshi Arayashiki
CPC classification number: H03F3/217 , H03F1/0205 , H03F1/565 , H03F3/2171 , H03F2200/171 , H03F2200/387 , H03F2200/451
Abstract: A power amplifier circuit includes a lower transistor having a first terminal, a second terminal connected to ground, and a third terminal, wherein a first power supply voltage is supplied to the first terminal, and an input signal is supplied to the third terminal; a first capacitor; an upper transistor having a first terminal, a second terminal connected to the first terminal of the lower transistor via the first capacitor, and a third terminal, wherein a second power supply voltage is supplied to the first terminal, an amplified signal is outputted to an output terminal from the first terminal, and a driving voltage is supplied to the third terminal; a first inductor that connects the second terminal of the upper transistor to ground; a voltage regulator circuit; and at least one termination circuit that short-circuits an even-order harmonic or odd-order harmonic of the amplified signal to ground potential.
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公开(公告)号：US11616479B2
公开(公告)日：2023-03-28
申请号：US16839226
申请日：2020-04-03
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Toshikazu Terashima , Fumio Harima , Makoto Itou , Satoshi Tanaka , Kazuo Watanabe , Satoshi Arayashiki , Chikara Yoshida
IPC: H03F3/213 , H01L29/417 , H01L27/06 , H01L29/737 , H01L29/423 , H01L23/48
Abstract: A power amplifier apparatus includes a semiconductor substrate, a plurality of first transistors on the semiconductor substrate, a plurality of second transistors, at least one collector terminal electrically connected to collectors of the plurality of first transistors, a first inductor having a first end electrically connected to the collector terminal and a second end electrically connected to a power supply potential, at least one emitter terminal electrically connected to emitters of the plurality of second transistors and adjacent to the collector terminal in a second direction, a second inductor having a first end electrically connected to the emitter terminal and a second end electrically connected to a reference potential, and at least one capacitor having a first end electrically connected to the collectors of the plurality of first transistors and a second end electrically connected to the emitters of the plurality of second transistors.
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公开(公告)号：US11496178B2
公开(公告)日：2022-11-08
申请号：US17015477
申请日：2020-09-09
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Sakurai , Satoshi Arayashiki , Satoshi Tanaka , Kyoichi Hirayama , Tomohito Ito , Kenta Kurahashi
Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
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Patent Agency Ranking
公开(公告)号：US10804955B2
公开(公告)日：2020-10-13
申请号：US16788625
申请日：2020-02-12
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Sakurai , Satoshi Arayashiki , Satoshi Tanaka , Kyoichi Hirayama , Tomohito Ito , Kenta Kurahashi
Abstract: A high-frequency module includes a transmission signal amplifier that outputs a transmission signal to an antenna terminal side; a reception signal amplifier that amplifies a reception signal supplied from an antenna terminal; a switch that selectively connects the antenna terminal to either an output of the transmission signal amplifier or an input of the reception signal amplifier; and a directional coupler that is provided on a transmission signal path and detects a signal level of the transmission signal. The transmission signal amplifier is controlled by a first control signal supplied from a first control circuit. The reception signal amplifier is controlled by a second control signal supplied from a second control circuit. The switch is controlled by a switch control signal supplied from the first control circuit. The directional coupler is controlled by a coupler control signal supplied from the first control circuit.
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公开(公告)号：US20180287565A1
公开(公告)日：2018-10-04
申请号：US16002349
申请日：2018-06-07
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiichiro Takenaka , Masahiro Ito , Masakazu Hori , Mitsuo Ariie , Hayato Nakamura , Satoshi Arayashiki , Hidetoshi Matsumoto , Tsuyoshi Sato , Satoshi Tanaka
IPC: H03F1/02 , H03G3/00 , H03F3/19 , H03F1/32 , H03F1/52 , H03F1/56 , H03F3/21 , H03F3/04 , H03F1/42
CPC classification number: H03F1/0222 , H03F1/02 , H03F1/0216 , H03F1/0261 , H03F1/32 , H03F1/42 , H03F1/52 , H03F1/56 , H03F3/04 , H03F3/19 , H03F3/21 , H03F2200/102 , H03F2200/408 , H03F2200/411 , H03F2200/444 , H03F2200/451 , H03G3/004
Abstract: Improvement in linearity is achieved at low costs in a power amplifier module employing an envelope tracking system. The power amplifier module includes a first power amplifier circuit that amplifies a radio frequency signal and that outputs a first amplified signal, a second power amplifier circuit that amplifies the first amplified signal on the basis of a source voltage varying depending on amplitude of the radio frequency signal and that outputs a second amplified signal, and a matching circuit that includes first and second capacitors connected in series between the first and second power amplifier circuit and an inductor connected between a node between the first and second capacitors and a ground and that decreases a gain of the first power amplifier circuit as the source voltage of the second power amplifier circuit increases.
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公开(公告)号：US20150035607A1
公开(公告)日：2015-02-05
申请号：US14327779
申请日：2014-07-10
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Kiichiro Takenaka , Masahiro Ito , Masakazu Hori , Mitsuo Ariie , Hayato Nakamura , Satoshi Arayashiki , Hidetoshi Matsumoto , Tsuyoshi Sato , Satoshi Tanaka
CPC classification number: H03F1/0222 , H03F1/02 , H03F1/0216 , H03F1/0261 , H03F1/32 , H03F1/42 , H03F1/52 , H03F1/56 , H03F3/04 , H03F3/19 , H03F3/21 , H03F2200/102 , H03F2200/408 , H03F2200/411 , H03F2200/444 , H03F2200/451 , H03G3/004
Abstract: Improvement in linearity is achieved at low costs in a power amplifier module employing an envelope tracking system. The power amplifier module includes a first power amplifier circuit that amplifies a radio frequency signal and that outputs a first amplified signal, a second power amplifier circuit that amplifies the first amplified signal on the basis of a source voltage varying depending on amplitude of the radio frequency signal and that outputs a second amplified signal, and a matching circuit that includes first and second capacitors connected in series between the first and second power amplifier circuit and an inductor connected between a node between the first and second capacitors and a ground and that decreases a gain of the first power amplifier circuit as the source voltage of the second power amplifier circuit increases.
Abstract translation: 在采用包络跟踪系统的功率放大器模块中，以低成本实现线性度的改善。 功率放大器模块包括：放大射频信号并输出第一放大信号的第一功率放大器电路;第二功率放大器电路，其根据根据射频幅度变化的源电压放大第一放大信号 信号，并且输出第二放大信号，以及匹配电路，其包括串联连接在第一和第二功率放大器电路之间的第一和第二电容器以及连接在第一和第二电容器之间的节点与地之间的电感器， 随着第二功率放大器电路的源极电压的增加，第一功率放大器电路的增益增加。
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公开(公告)号：US11936350B2
公开(公告)日：2024-03-19
申请号：US17374065
申请日：2021-07-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Makoto Itou , Satoshi Arayashiki , Satoshi Goto
CPC classification number: H03F3/245 , H03F1/0211 , H03F2200/222 , H03F2200/451
Abstract: A power amplifier circuit includes a first transistor having a first terminal to which a first signal inputs, a second transistor having a first terminal to which the first signal inputs, a first resistor having a first end to which a first bias current is supplied and a second end electrically connected to the first terminal of the first transistor, a second resistor having a first end to which a second bias current is supplied and a second end electrically connected to the first terminal of the second transistor, and a third resistor having a first end connected to the first end of the first resistor and a second end connected to the first end of the second resistor.
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公开(公告)号：US11558014B2
公开(公告)日：2023-01-17
申请号：US17323505
申请日：2021-05-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Satoshi Arayashiki , Satoshi Goto , Yusuke Tanaka
Abstract: A power amplifier circuit includes a first transistor having an emitter electrically connected to a common potential, a base to which a first high-frequency signal is input, and a collector from which a third high-frequency signal is output; a second transistor having an emitter electrically connected to the common potential, a base to which a second high-frequency signal is input, and a collector from which a fourth high-frequency signal is output; a first capacitance circuit electrically connected between the collector of the second transistor and the base of the first transistor; and a second capacitance circuit electrically connected between the collector of the first transistor and the base of the second transistor.
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