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1. 发明授权

US09853605B2 Transistor package, amplification circuit including the same, and method of forming transistor 有权
公开(公告)号：US09853605B2
公开(公告)日：2017-12-26
申请号：US15112912
申请日：2014-10-10
申请人： NEC Corporation
发明人： Kazumi Shiikuma
IPC分类号： H03F1/02 , H03F3/195 , H03F3/24 , H01L29/423 , H03F3/21
CPC分类号： H03F1/0288 , H01L29/42376 , H03F3/195 , H03F3/21 , H03F3/245 , H03F2200/18 , H03F2200/471
摘要： A transistor package according to one exemplary embodiment includes main transistors and a sub-transistor placed in the same package as the main transistors and having a smaller size than the main transistors. It is thereby possible to provide a transistor package with more versatility capable of forming various types of Doherty amplification circuits such as a Doherty amplification circuit with auto-biasing function and an extended Doherty amplification circuit with desired operating characteristics, an amplification circuit including the same, and a method of forming a transistor.

2. 发明授权

US09503029B2 Transmitting amplifier and transmitter 有权
标题翻译：发射放大器和发射器
公开(公告)号：US09503029B2
公开(公告)日：2016-11-22
申请号：US14427262
申请日：2013-04-09
申请人： NEC Corporation
发明人： Kazumi Shiikuma
IPC分类号： H03F3/68 , H03F1/02 , H03F3/24 , H03F1/56 , H04B1/04 , H03F3/195 , H04W88/08
CPC分类号： H03F1/0288 , H03F1/56 , H03F1/565 , H03F3/195 , H03F3/24 , H03F3/245 , H03F3/68 , H03F2200/387 , H04B1/04 , H04B2001/0408 , H04W88/08
摘要： The present invention is applied to a transmitting amplifier including one of a carrier amplifier and a peak amplifier as a first amplifier and the other as a second amplifier. A transmitting amplifier according to the present invention includes a transmission line transformer with a ¼ wavelength, dual-coaxial structure such that a center conductor, an inner conductor, and an outer conductor are formed in that order from the center toward the outside. The center conductor and the inner conductor constitute a first coaxial line, and the inner conductor and the outer conductor constitute a second coaxial line. The output of the first amplifier is connected to one end of the first and the second coaxial lines, and an output terminal is connected to the other end of the first and second coaxial lines. The other end of the first coaxial line, the output of the second amplifier, and the other end of the second coaxial line are connected.
摘要翻译：本发明应用于作为第一放大器的载波放大器和峰值放大器之一的发送放大器，另一个作为第二放大器。根据本发明的发射放大器包括具有1/4波长双共轴结构的传输线变压器，使得中心导体，内导体和外导体以从中心到外部的顺序形成。中心导体和内导体构成第一同轴线，内导体和外导体构成第二同轴线。第一放大器的输出连接到第一和第二同轴线的一端，输出端连接到第一和第二同轴线的另一端。连接第一同轴线的另一端，第二放大器的输出端和第二同轴线的另一端。

3. 发明申请

US20150263768A1 TRANSMITTER 审中-公开
标题翻译：发射机
公开(公告)号：US20150263768A1
公开(公告)日：2015-09-17
申请号：US14428106
申请日：2013-09-17
申请人： NEC CORPORATION
发明人： Shinichi Hori , Kazuaki Kunihiro , Kazumi Shiikuma
IPC分类号： H04B1/04
CPC分类号： H04B1/04 , H03F3/195 , H03F3/211 , H03F3/2173 , H03F3/24 , H03F3/245 , H03F2200/336 , H03F2200/541 , H04B2001/0408
摘要： A transmitter includes: multiple digital transmitters which perform delta-sigma modulation on the same baseband signal; a combiner that combines the output signals from the plural digital transmitters and outputs the combined result; a control unit that generates an external signal different for every digital transmitter, to be supplied to each of the digital transmitters; and, an input means that supplies the different external signal for every digital transmitter, to the input terminal or the internal node of a delta-sigma modulator that performs the delta-sigma modulation, the delta-sigma modulator being provided for every digital transmitter.
摘要翻译：发射机包括：在相同基带信号上执行Δ-Σ调制的多个数字发射机; 组合器，其组合来自多个数字发射机的输出信号并输出组合结果; 控制单元，其生成对每个数字发送器不同的外部信号，供给每个数字发送器; 以及向每个数字发射机提供不同的外部信号的输入装置，用于执行Δ-Σ调制的Δ-Σ调制器的输入端或内部节点，为每个数字发射机提供Δ-Σ调制器。

4. 发明申请

US20150222461A1 TRANSMITTER, SIGNAL-SYNTHESIZING CIRCUIT, AND SIGNAL-SYNTHESIZING METHOD 有权
标题翻译：发射机，信号合成电路和信号合成方法
公开(公告)号：US20150222461A1
公开(公告)日：2015-08-06
申请号：US14420440
申请日：2013-09-12
申请人： NEC CORPORATION
发明人： Keiichi Motoi , Shinichi Hori , Kazumi Shiikuma
IPC分类号： H04L27/04 , H04L25/06
CPC分类号： H04L27/04 , H03F1/565 , H03F3/2173 , H03F3/2178 , H03F3/24 , H03F3/602 , H04B1/0475 , H04B2001/0408 , H04L25/06
摘要： A transmitter includes: a modulation circuit for modulating a baseband signal into a multi-bit digital signal containing a radio frequency band component; a plurality of switch mode amplifiers each provided corresponding to a respective bit of the multi-bit digital signal supplied from the modulation circuit; and a signal-synthesizing circuit. The signal-synthesizing circuit connects a band-restricting unit that restricts the band of the output signals of the plurality of switch mode amplifiers and a voltage-current conversion unit that converts output signals of the switch mode amplifiers from voltage into current to perform signal synthesizing.
摘要翻译：发射机包括：调制电路，用于将基带信号调制成包含无线电频带分量的多比特数字信号; 多个开关模式放大器，分别对应于从调制电路提供的多位数字信号的相应位; 和信号合成电路。信号合成电路连接限制多个开关模式放大器的输出信号的频带的频带限制单元和将开关模式放大器的输出信号从电压转换为电流的电压电流转换单元，以进行信号合成。

5. 发明授权

US10361693B2 Power source supply circuit, amplifier, communication device, base station, and power source supply method 有权
公开(公告)号：US10361693B2
公开(公告)日：2019-07-23
申请号：US15548438
申请日：2016-01-05
申请人： NEC Corporation
发明人： Yoji Murao , Kazumi Shiikuma
IPC分类号： H03K17/04 , H04B1/04 , H04B1/40 , H03F1/52 , H03F1/56 , H03F3/193 , H04B1/44 , H04W88/08 , H03F3/24 , H03F3/60 , H04B1/525 , H04B15/00 , H04L5/14
摘要： A power source supply circuit includes: a plurality of power sources (11-1, 11-2) that generate power source voltages different from each other; a switch circuit (14) that switches and outputs the power source voltages generated in the plurality of power sources (11-1, 11-2); a voltage output terminal (16) that outputs outside the power source voltages output from the switch circuit (14); an RF choke circuit (15) provided between the switch circuit (14) and the voltage output terminal (16), the RF choke circuit (15) including a first capacitor; and a second capacitor (12-1, 12-2) provided between the plurality of power sources (11-1, 11-2) and the switch circuit (14), the second capacitor (12-1, 12-2) having a larger capacitance than the first capacitor.

6. 发明授权

US09793862B2 Transmitter and transmission method 有权
公开(公告)号：US09793862B2
公开(公告)日：2017-10-17
申请号：US15123023
申请日：2014-10-29
申请人： NEC Corporation
发明人： Keiichi Motoi , Kazumi Shiikuma , Shinichi Hori
IPC分类号： H03F1/02 , H03F3/24 , H03F3/19 , H04B1/04
CPC分类号： H03F1/0288 , H03F1/56 , H03F3/19 , H03F3/217 , H03F3/24 , H03F3/245 , H03F2200/171 , H03F2200/336 , H03F2200/387 , H03F2200/451 , H04B1/0475 , H04B2001/0408
摘要： A transmitter according to an exemplary aspect of the present invention includes: a modulation circuit configured to modulate a baseband signal into a multi-bit digital signal including a component in a radio-frequency band; a plurality of switch-mode power amplifiers corresponding to each bit of the multi-bit digital signal output from the modulation circuit; and a signal synthesis circuit including a band limiting unit configured to perform a band limitation on output signals from the plurality of switch-mode power amplifiers, and a plurality of voltage-to-current converting units configured to perform a voltage-to-current conversion on respective output signals from the plurality of switch-mode power amplifiers, the signal synthesis circuit configured to makes a synthesized signal connecting the band limiting unit and the plurality of voltage-to-current converting units, wherein, depending on an output power at a synthesis point where the synthesized signal is made, a switch-mode power amplifier is selected which is configured to receive input of a pulse, and a pulse number of pulses to be inputted into the selected switch-mode power amplifier is controlled.

7. 发明授权

US09319255B2 Transmitter, signal-synthesizing circuit, and signal-synthesizing method 有权
标题翻译：发射机，信号合成电路以及信号合成方法
公开(公告)号：US09319255B2
公开(公告)日：2016-04-19
申请号：US14420440
申请日：2013-09-12
申请人： NEC Corporation
发明人： Keiichi Motoi , Shinichi Hori , Kazumi Shiikuma
IPC分类号： H04L27/04 , H03F3/24 , H03F1/56 , H03F3/217 , H03F3/60 , H04B1/04 , H04L25/06
CPC分类号： H04L27/04 , H03F1/565 , H03F3/2173 , H03F3/2178 , H03F3/24 , H03F3/602 , H04B1/0475 , H04B2001/0408 , H04L25/06
摘要： A transmitter includes: a modulation circuit for modulating a baseband signal into a multi-bit digital signal containing a radio frequency band component; a plurality of switch mode amplifiers each provided corresponding to a respective bit of the multi-bit digital signal supplied from the modulation circuit; and a signal-synthesizing circuit. The signal-synthesizing circuit connects a band-restricting unit that restricts the band of the output signals of the plurality of switch mode amplifiers and a voltage-current conversion unit that converts output signals of the switch mode amplifiers from voltage into current to perform signal synthesizing.
摘要翻译：发射机包括：调制电路，用于将基带信号调制成包含无线电频带分量的多比特数字信号; 多个开关模式放大器，分别对应于从调制电路提供的多位数字信号的相应位; 和信号合成电路。信号合成电路连接限制多个开关模式放大器的输出信号的频带的频带限制单元和将开关模式放大器的输出信号从电压转换为电流的电压电流转换单元，以进行信号合成。

8. 发明申请

US20150229276A1 TRANSMITTING AMPLIFIER AND TRANSMITTER 有权
标题翻译：发射放大器和发射器
公开(公告)号：US20150229276A1
公开(公告)日：2015-08-13
申请号：US14427262
申请日：2013-04-09
申请人： NEC CORPORATION
发明人： Kazumi Shiikuma
IPC分类号： H03F1/02 , H03F3/68 , H04B1/04 , H03F1/56
CPC分类号： H03F1/0288 , H03F1/56 , H03F1/565 , H03F3/195 , H03F3/24 , H03F3/245 , H03F3/68 , H03F2200/387 , H04B1/04 , H04B2001/0408 , H04W88/08
摘要： The present invention is applied to a transmitting amplifier including one of a carrier amplifier and a peak amplifier as a first amplifier and the other as a second amplifier. A transmitting amplifier according to the present invention includes a transmission line transformer with a ¼ wavelength, dual-coaxial structure such that a center conductor, an inner conductor, and an outer conductor are formed in that order from the center toward the outside. The center conductor and the inner conductor constitute a first coaxial line, and the inner conductor and the outer conductor constitute a second coaxial line. The output of the first amplifier is connected to one end of the first and the second coaxial lines, and an output terminal is connected to the other end of the first and second coaxial lines. The other end of the first coaxial line, the output of the second amplifier, and the other end of the second coaxial line are connected.
摘要翻译：本发明应用于作为第一放大器的载波放大器和峰值放大器之一的发送放大器，另一个作为第二放大器。根据本发明的发射放大器包括具有1/4波长，双同轴结构的传输线变压器，使得中心导体，内导体和外导体以从中心朝向外部的顺序形成。中心导体和内导体构成第一同轴线，内导体和外导体构成第二同轴线。第一放大器的输出连接到第一和第二同轴线的一端，输出端连接到第一和第二同轴线的另一端。连接第一同轴线的另一端，第二放大器的输出端和第二同轴线的另一端。

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