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公开(公告)号：US20240333231A1
公开(公告)日：2024-10-03
申请号：US18619743
申请日：2024-03-28
发明人： Masatoshi HASE , Seiko NETSU , Shingo YANAGIHARA
CPC分类号： H03F1/3211 , H03F1/0288 , H03F3/245 , H03F3/602 , H03F2200/451
摘要： A power amplifier circuit includes a distortion compensation amplifier circuit that includes a first amplifier that amplifies a first signal distributed from an input signal, and a second amplifier connected in parallel to the first amplifier, that amplifies a second signal distributed from the input signal and having a different phase from the first signal, and outputs an amplified signal obtained by combining a signal output from the first amplifier and the second amplifier, and an output amplifier circuit that outputs an output signal obtained by amplifying the amplified signal. The distortion compensation amplifier circuit further includes a control circuit that controls, based on power of the input signal, the first gain and the second gain to compensate for a change in a phase of the output amplifier circuit with respect to a change in the power of the signal input to the output amplifier circuit.
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公开(公告)号：US20240162871A1
公开(公告)日：2024-05-16
申请号：US18504274
申请日：2023-11-08
发明人： Masatoshi HASE , Koudai SUGIYAMA , Masamichi TOKUDA , Seiko NETSU
IPC分类号： H03F3/45
CPC分类号： H03F3/45475 , H03F2200/06 , H03F2200/09 , H03F2200/451
摘要： A main line (transmission line) has a first end and a second end. A sub-line (transmission line) coupled to the main line has a third end and a fourth end. The main line and the sub-line are coupled to each other. A direction of the main line is identical to a direction of the sub-line. An unbalanced node is connected to the first end. The first balanced node is connected to the first end, and the second balanced node is connected to the fourth end. The second end and the third end are connected to a reference potential. A first LC resonant circuit is connected between the first balanced node and the unbalanced node, the second balanced node and the fourth end, or the first end and the unbalanced node.
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公开(公告)号：US20200350874A1
公开(公告)日：2020-11-05
申请号：US16935514
申请日：2020-07-22
发明人： Masatoshi HASE
摘要： Provided is a power amplifier circuit that can increase output power and also reduce the effect of intermodulation distortion. The power amplifier circuit includes a power divider, a distortion compensation circuit provided on the secondary path, a power combiner, and a first amplifier configured. The distortion compensation circuit includes a generation circuit configured to generate the second-harmonic wave of the input signal, a filter circuit configured to attenuate the fundamental wave and pass the second-harmonic wave, and a phase adjustment circuit configured to adjust the phase of the second-harmonic wave.
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公开(公告)号：US20200259468A1
公开(公告)日：2020-08-13
申请号：US16783373
申请日：2020-02-06
发明人： Masatoshi HASE , Satoshi TANAKA
摘要： A power amplifier circuit includes a substrate and a semiconductor chip disposed on or above the substrate. The semiconductor chip includes a power amplifier unit that amplifies an RF signal, a ground terminal to which a ground of the power amplifier unit is coupled, and a first circuit element having a first end electrically coupled to the ground terminal without any portion outside the semiconductor chip interposed therebetween, and having a second end. The substrate includes a second circuit element having a first end electrically coupled to an output of the power amplifier unit and a second end electrically coupled to the second end of the first circuit element. The first and second circuit elements constitute a harmonic wave termination circuit. The harmonic wave termination circuit reflects, to the power amplifier unit, a harmonic wave component of the amplified RF signal output from the power amplifier unit.
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公开(公告)号：US20190341889A1
公开(公告)日：2019-11-07
申请号：US16513880
申请日：2019-07-17
发明人： Masatoshi HASE
摘要： A power amplifier module includes a combining circuit including a combiner. The combining circuit further includes a first inductor connected in series between an output terminal of a first amplifier and the combiner, a second inductor connected in series between an output terminal of a second amplifier and the combiner, and a second capacitor having an end connected to the combiner and another end grounded. A phase of a third signal from the output terminal of the first amplifier to the second amplifier through the combiner is delayed by about 45 degrees in the first inductor and the second capacitor, and is delayed by about 45 degrees in the second inductor and the second capacitor. A phase of the third signal from the output terminal of the first amplifier to the second amplifier through the first capacitor is advanced by about 90 degrees.
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公开(公告)号：US20190260400A1
公开(公告)日：2019-08-22
申请号：US16402358
申请日：2019-05-03
发明人： Masatoshi HASE
摘要： A power amplification module includes a first amplification transistor that receives a first signal outputs an amplified second signal from the collector thereof; and a bias circuit that supplies a bias current to the base of the first amplification transistor. The first bias circuit includes a first transistor that is diode connected and is supplied with a bias control current; a second transistor that is diode connected, the collector thereof being connected to the emitter of the first transistor; a third transistor, the base thereof being connected to the base of the first transistor, and the bias current being output from the emitter thereof; a fourth transistor, the collector thereof being connected to the emitter of the third transistor and the base thereof being connected to the base of the second transistor; and a first capacitor between the base and the emitter of the third transistor.
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公开(公告)号：US20230155558A1
公开(公告)日：2023-05-18
申请号：US18053801
申请日：2022-11-09
发明人： Masatoshi HASE
CPC分类号： H03F3/211 , H03F3/213 , H03F2200/369 , H03F2200/451
摘要： A power amplifier circuit includes amplifying transistors electrically cascade-connected, amplifying a signal supplied to a base, and outputting an amplified signal; a first resistive element having end parts connected to the base of a first amplifying transistor; a second resistive element having end parts connected to the base of a second amplifying transistor, which is an amplifying transistor located closer to an input side than the first amplifying transistor; a first bias supplying transistor having an emitter connected to one of the end parts of the first resistive element; a second bias supplying transistor having an emitter connected to one of the end parts of the second resistive element; and a bias current compensation transistor having a base connected to the end part of the first resistive element, a collector connected to the end part of the second resistive element, and an emitter connected to ground.
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公开(公告)号：US20200076383A1
公开(公告)日：2020-03-05
申请号：US16550493
申请日：2019-08-26
发明人： Masatoshi HASE
摘要： A first transmission line and a second transmission line that are connected in series to each other are disposed at different positions in a thickness direction of a substrate. A third transmission line is disposed between the first transmission line and the second transmission line in the thickness direction of the substrate. The third transmission line includes a first end portion connected to one end portion of the first transmission line, and a second end portion that is AC-grounded. The first transmission line and the second transmission line are electromagnetically coupled to the third transmission line.
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公开(公告)号：US20170093345A1
公开(公告)日：2017-03-30
申请号：US15372510
申请日：2016-12-08
发明人： Masatoshi HASE
CPC分类号： H03F1/302 , H01L23/66 , H01L29/0804 , H01L29/737 , H03F3/19 , H03F3/191 , H03F3/195 , H03F3/24 , H03F3/245 , H03F2200/18 , H03F2200/447 , H03F2200/451 , H03F2200/555 , H03G3/3042 , H04B2001/0408 , H04W88/02
摘要： A power amplification module includes: a first bipolar transistor in which a radio frequency signal is input to a base and an amplified signal is output from a collector; a second bipolar transistor that is thermally coupled with the first bipolar transistor and that imitates operation of the first bipolar transistor; a third bipolar transistor in which a first control voltage is supplied to a base and a first bias current is output from an emitter; a first resistor that generates a third control voltage corresponding to a collector current of the second bipolar transistor at a second terminal; and a fourth bipolar transistor in which a power supply voltage is supplied to a collector, the third control voltage is supplied to a base, and a second bias current is output from an emitter.
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公开(公告)号：US20220190795A1
公开(公告)日：2022-06-16
申请号：US17549626
申请日：2021-12-13
发明人： Masatoshi HASE
摘要： A power amplifier circuit includes an amplifier transistor which amplifies a radio frequency signal applied to its base and outputs the amplified signal; a resistance element having a first end, and a second end electrically connected to the base of the amplifier transistor; a first bias transistor having a collector to which a first voltage is applied, a base to which a first bias voltage is applied, and an emitter electrically connected to the first end of the resistance element and which supplies a bias current to the base of the amplifier transistor through the resistance element; and a second bias transistor having an emitter electrically connected to the emitter of the first bias transistor and the first end of the resistance element, a base to which a second bias voltage is applied, and a collector to which a second voltage lower than the first voltage is applied.
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