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公开(公告)号：US10819286B2
公开(公告)日：2020-10-27
申请号：US16205904
申请日：2018-11-30
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Tetsuaki Adachi , Kazuo Watanabe , Masahito Numanami , Yasuhisa Yamamoto
Abstract: Provided is a power amplification circuit that includes: an amplifier that amplifies an input signal and outputs an amplified signal; a first bias circuit that supplies a first bias current or voltage to the amplifier; a second bias circuit that supplies a second bias current or voltage to the amplifier; a first control circuit that controls the first bias current or voltage; and a second control circuit that controls the second bias current or voltage. The current supplying capacity of the first bias circuit is different from the current supplying capacity of the second bias circuit.
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公开(公告)号：US20180294788A1
公开(公告)日：2018-10-11
申请号：US16007087
申请日：2018-06-13
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Yusuke Shimamune , Takashi Soga , Fuminori Morisawa , Seiko Ono , Tetsuaki Adachi
Abstract: Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.
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公开(公告)号：US10020786B2
公开(公告)日：2018-07-10
申请号：US15201999
申请日：2016-07-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Yusuke Shimamune , Takashi Soga , Fuminori Morisawa , Seiko Ono , Tetsuaki Adachi
CPC classification number: H03G3/3042 , H03F1/565 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03G3/3047 , H03G2201/40
Abstract: Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.
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公开(公告)号：US11264952B2
公开(公告)日：2022-03-01
申请号：US17024245
申请日：2020-09-17
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Tetsuaki Adachi , Kazuo Watanabe , Masahito Numanami , Yasuhisa Yamamoto
Abstract: Provided is a power amplification circuit that includes: an amplifier that amplifies an input signal and outputs an amplified signal; a first bias circuit that supplies a first bias current or voltage to the amplifier; a second bias circuit that supplies a second bias current or voltage to the amplifier; a first control circuit that controls the first bias current or voltage; and a second control circuit that controls the second bias current or voltage. The current supplying capacity of the first bias circuit is different from the current supplying capacity of the second bias circuit.
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公开(公告)号：US10256848B2
公开(公告)日：2019-04-09
申请号：US15490021
申请日：2017-04-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kazuo Watanabe , Tetsuaki Adachi , Masahito Numanami , Yasuhisa Yamamoto
Abstract: A communication unit includes the following elements. A first transmit circuit outputs a first signal or a second signal from a first input signal. A first amplifier amplifies the first signal and outputs a first amplified signal. A first signal generating circuit generates a third signal having a frequency higher than a frequency of the second signal, based on the second signal and a first reference signal. A first filter circuit receives the third signal and allows one of a frequency component representing a sum of the frequency of the second signal and a frequency of the first reference signal and a frequency component representing a difference therebetween to pass through the first filter circuit and attenuates the other one of the frequency components. A second amplifier amplifies the third signal output from the first filter circuit and outputs a second amplified signal.
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Patent Agency Ranking
公开(公告)号：US20180062579A1
公开(公告)日：2018-03-01
申请号：US15656646
申请日：2017-07-21
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Tetsuaki Adachi , Kazuo Watanabe , Masahito Numanami , Yasuhisa Yamamoto
CPC classification number: H03F1/0205 , H03F1/0261 , H03F1/56 , H03F3/191 , H03F3/193 , H03F3/21 , H03F2200/18 , H03F2200/222 , H03F2200/387 , H03F2200/451 , H03F2200/75
Abstract: Provided is a power amplification circuit that includes: an amplifier that amplifies an input signal and outputs an amplified signal; a first bias circuit that supplies a first bias current or voltage to the amplifier; a second bias circuit that supplies a second bias current or voltage to the amplifier; a first control circuit that controls the first bias current or voltage; and a second control circuit that controls the second bias current or voltage. The current supplying capacity of the first bias circuit is different from the current supplying capacity of the second bias circuit.
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公开(公告)号：US10965325B2
公开(公告)日：2021-03-30
申请号：US16285584
申请日：2019-02-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kazuo Watanabe , Tetsuaki Adachi , Masahito Numanami , Yasuhisa Yamamoto
Abstract: A communication unit includes the following elements. A first transmit circuit outputs a first signal or a second signal from a first input signal. A first amplifier amplifies the first signal and outputs a first amplified signal. A first signal generating circuit generates a third signal having a frequency higher than a frequency of the second signal, based on the second signal and a first reference signal. A first filter circuit receives the third signal and allows one of a frequency component representing a sum of the frequency of the second signal and a frequency of the first reference signal and a frequency component representing a difference therebetween to pass through the first filter circuit and attenuates the other one of the frequency components. A second amplifier amplifies the third signal output from the first filter circuit and outputs a second amplified signal.
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公开(公告)号：US10256849B2
公开(公告)日：2019-04-09
申请号：US15490073
申请日：2017-04-18
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kazuo Watanabe , Tetsuaki Adachi , Masahito Numanami , Yasuhisa Yamamoto
Abstract: A communication unit includes the following elements. A first transmit circuit outputs a first signal or a second signal from a first input signal. A first amplifier amplifies the first signal and outputs a first amplified signal. A first signal generating circuit generates a third signal having a frequency higher than a frequency of the second signal, based on the second signal and a first reference signal. A first filter circuit receives the third signal and allows one of a frequency component representing a sum of the frequency of the second signal and a frequency of the first reference signal and a frequency component representing a difference therebetween to pass through the first filter circuit and attenuates the other one of the frequency components. A second amplifier amplifies the third signal output from the first filter circuit and outputs a second amplified signal.
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公开(公告)号：US20170019082A1
公开(公告)日：2017-01-19
申请号：US15201999
申请日：2016-07-05
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Shota Ishihara , Yusuke Shimamune , Takashi Soga , Fuminori Morisawa , Seiko Ono , Tetsuaki Adachi
CPC classification number: H03G3/3042 , H03F1/565 , H03F3/19 , H03F3/245 , H03F2200/102 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/408 , H03F2200/451 , H03G3/3047 , H03G2201/40
Abstract: Provided is a power amplification module that includes: an amplification transistor that has a constant power supply voltage supplied to a collector thereof, a bias current supplied to a base thereof and that amplifies an input signal input to the base thereof and outputs an amplified signal from the collector thereof; a first current source that outputs a first current that corresponds to a level control voltage that is for controlling a signal level of the amplified signal; and a bias transistor that has the first current supplied to a collector thereof, a bias control voltage connected to a base thereof and that outputs the bias current from an emitter thereof.
Abstract translation: 提供了一种功率放大模块，其包括：放大晶体管，其具有提供给其集电极的恒定电源电压，提供给其基极的偏置电流，并且放大输入到其基极的输入信号，并输出来自 其收集器; 输出对应于用于控制放大信号的信号电平的电平控制电压的第一电流的第一电流源; 以及具有提供给其集电极的第一电流的偏置晶体管，连接到其基极并从其发射极输出偏置电流的偏置控制电压。
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公开(公告)号：US10944438B2
公开(公告)日：2021-03-09
申请号：US16285408
申请日：2019-02-26
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Satoshi Tanaka , Kazuo Watanabe , Tetsuaki Adachi , Masahito Numanami , Yasuhisa Yamamoto
Abstract: A communication unit includes the following elements. A first transmit circuit outputs a first signal or a second signal from a first input signal. A first amplifier amplifies the first signal and outputs a first amplified signal. A first signal generating circuit generates a third signal having a frequency higher than a frequency of the second signal, based on the second signal and a first reference signal. A first filter circuit receives the third signal and allows one of a frequency component representing a sum of the frequency of the second signal and a frequency of the first reference signal and a frequency component representing a difference therebetween to pass through the first filter circuit and attenuates the other one of the frequency components. A second amplifier amplifies the third signal output from the first filter circuit and outputs a second amplified signal.
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