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1. 发明授权

US6133791A Feedforward amplifier with improved characteristics without using pilot signal 失效
标题翻译：前馈放大器具有改进的特性，无需使用导频信号
公开(公告)号：US6133791A
公开(公告)日：2000-10-17
申请号：US177651
申请日：1998-10-23
申请人： Kenichi Horiguchi , Masatoshi Nakayama , Yukio Ikeda , Tadashi Takagi , Haruyasu Senda
发明人： Kenichi Horiguchi , Masatoshi Nakayama , Yukio Ikeda , Tadashi Takagi , Haruyasu Senda
IPC分类号： H03F1/32 , H03F1/00
CPC分类号： H03F1/3229
摘要： A feedforward amplifier which includes a distortion detector, a distortion eliminator, an error power extractor, a first level detector and a first controller. The error power extractor extracts output error power due to variations in the distortion eliminator by combining the output signal from the distortion eliminator with the signal from a first linear signal path in the distortion detector in opposite phases. The first level detector detects the output error power extracted by the error power extractor, and the first controller controls a first variable attenuator and a first phase shifter which are interposed in the distortion eliminator such that the output error power is maintained at zero. This can solve a problem of a conventional feedforward amplifier in that the power level of the pilot signal must be increased to heighten the detection sensitivity of the pilot signal because the detection level of the pilot signal becomes minimum at an optimum operation point, and that the increasing power of the pilot signal degrades the communication quality of a system employing the conventional feedforward amplifier.
摘要翻译：一种前馈放大器，包括失真检测器，失真消除器，误差功率提取器，第一电平检测器和第一控制器。误差功率提取器通过将来自失真消除器的输出信号与来自失真检测器中的第一线性信号路径的信号相反地组合，由于失真消除器的变化而提取输出误差功率。第一电平检测器检测由误差电力提取器提取的输出误差功率，并且第一控制器控制插入失真消除器中的第一可变衰减器和第一移相器，使得输出误差功率保持为零。这可以解决常规前馈放大器的问题，因为导频信号的检测电平在最佳操作点变为最小时必须提高导频信号的功率电平，以提高导频信号的检测灵敏度，导频信号的增加功率降低了采用常规前馈放大器的系统的通信质量。

2. 发明申请

US20070164818A1 High efficiency amplifier 审中-公开
标题翻译：高效放大器
公开(公告)号：US20070164818A1
公开(公告)日：2007-07-19
申请号：US10591644
申请日：2004-06-18
申请人： Kenichi Horiguchi , Masatoshi Nakayama , Tadashi Takagi
发明人： Kenichi Horiguchi , Masatoshi Nakayama , Tadashi Takagi
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F1/3276
摘要： A high efficiency amplifier has an analog predistortion circuit (5) connected between an input side dividing circuit (2) and a quarter-wave line (6). This offers an advantage of being able to improve the linearity of the entire amplifier because the nonlinear distortion of a peak amplifier (7) is compensated.
摘要翻译：高效率放大器具有连接在输入侧分频电路（2）和四分之一波长线（6）之间的模拟预失真电路（5）。这提供了能够提高整个放大器的线性度的优点，因为峰值放大器（7）的非线性失真被补偿。

3. 发明申请

US20050179136A1 Multi-layer substrate module and wireless terminal device 审中-公开
标题翻译：多层基板模块和无线终端设备
公开(公告)号：US20050179136A1
公开(公告)日：2005-08-18
申请号：US11108638
申请日：2005-04-19
申请人： Takatoshi Katsura , Kenji Itoh , Hiroaki Nagano , Youji Isota , Mitsuhiro Shimozawa , Tadashi Takagi , Noriharu Suematsu , Masayoshi Ono , Kenichi Maeda
发明人： Takatoshi Katsura , Kenji Itoh , Hiroaki Nagano , Youji Isota , Mitsuhiro Shimozawa , Tadashi Takagi , Noriharu Suematsu , Masayoshi Ono , Kenichi Maeda
IPC分类号： H01L23/48 , H01L23/50 , H01L23/538 , H01L23/552 , H01L23/64 , H01L23/66 , H03H3/00 , H03H7/01 , H05K1/00 , H05K1/02 , H05K1/14 , H05K1/18 , H05K9/00
CPC分类号： H05K1/0216 , H01L23/50 , H01L23/5383 , H01L23/552 , H01L23/645 , H01L2924/0002 , H01L2924/15312 , H01L2924/3011 , H03H3/00 , H03H7/01 , H05K1/0237 , H05K1/0298 , H05K1/141 , H05K9/0039 , H05K2201/0715 , H05K2201/09254 , H05K2201/09972 , H01L2924/00
摘要： In a multi-layer substrate module receiving from an external earth node (20) supply of a reference potential (Vss) for grounding, a plurality of ground lines (170-1, 170-2, 170-3) are provided respectively corresponding to a plurality of internal circuits (210, 220, 230). Moreover, a common node (Ncmn) for coupling the ground lines (170-1, 170-2, 170-3) is provided in an insulating layer (105C) of the multi-layer substrate module. The common node (Ncmn) is electrically coupled to the earth node 20 through a ground pin terminal 204 shared by the plurality of internal circuits (210, 220, 230). Preferably, the common node (Ncmn) is provided in the lowest insulating layer of the multi-layer substrate module. Thus, parasitic inductance of the portion through which an earth current flows, that is, the portion common to the plurality of internal circuits (210, 220, 230), can be suppressed with a small number of ground pin terminals. Accordingly, the inflow phenomenon of the earth current between the plurality of internal circuits (210, 220, 230) is prevented, enabling stable operation.
摘要翻译：在从外部接地节点（20）接收用于接地的参考电位（Vss）的多层衬底模块中，分别提供多个接地线（170-1,170-2,170-3），其对应于多个内部电路（210,220,230）。此外，用于耦合接地线（170-1,170-2,170-3）的公共节点（Ncmn）设置在多层衬底模块的绝缘层（105C）中。公共节点（Ncmn）通过由多个内部电路（210,220,230）共享的接地引脚端子204电耦合到接地节点20。优选地，公共节点（Ncmn）设置在多层基板模块的最低绝缘层中。因此，可以用少量的接地引脚端子来抑制接地电流流过的部分的寄生电感，即多个内部电路（210,220,230）共同的部分的寄生电感。因此，防止了多个内部电路（210,220,230）之间的接地电流的流入现象，从而能够稳定地工作。

4. 发明授权

US06674341B2 Phase shifter and multibit phase shifter 失效
标题翻译：移相器和多位移相器
公开(公告)号：US06674341B2
公开(公告)日：2004-01-06
申请号：US10220150
申请日：2002-08-27
申请人： Morishige Hieda , Kenichi Miyaguchi , Kazutomi Mori , Michiaki Kasahara , Tadashi Takagi , Hiroshi Ikematsu , Norio Takeuchi , Hiromasa Nakaguro , Kazuyoshi Inami
发明人： Morishige Hieda , Kenichi Miyaguchi , Kazutomi Mori , Michiaki Kasahara , Tadashi Takagi , Hiroshi Ikematsu , Norio Takeuchi , Hiromasa Nakaguro , Kazuyoshi Inami
IPC分类号： H01P118
CPC分类号： H03H11/18 , H03H11/20
摘要： A miniaturized phase shifter and a multi-bit phase shifter are provided, in which filters are constructed using capacitors at FET pinch-off and pass phase can be shifted by turning the FET on and off, the phase shifter including: a first FET having a drain electrode connected to an input terminal and a source electrode connected to an output terminal; a second FET, in which one of a drain electrode and a source electrode thereof is connected to the source electrode of the first FET and the other is connected to ground via a first inductor; and a third FET, in which one of a drain electrode and a source electrode thereof is connected to the drain electrode of the first FET and the other is connected to ground via a second inductor.
摘要翻译：提供了一种小型化移相器和多位移相器，其中使用FET夹断电容器构建滤波器，并且可以通过打开和关闭FET来移动通过相位，该移相器包括：第一FET，具有漏极连接到输入端子，源电极连接到输出端子; 第二FET，其漏极电极和源电极中的一个连接到第一FET的源电极，另一个通过第一电感器连接到地; 以及第三FET，其中漏电极和源电极中的一个连接到第一FET的漏电极，另一个通过第二电感器连接到地。

5. 发明授权

US5043673A Compensating circuit for a high frequency amplifier 失效
标题翻译：高频放大器的补偿电路
公开(公告)号：US5043673A
公开(公告)日：1991-08-27
申请号：US500960
申请日：1990-03-29
申请人： Noriharu Suematsu , Tadashi Takagi , Shuji Urasaki , Katsuhisa Uno , Masahiro Kamiyama
发明人： Noriharu Suematsu , Tadashi Takagi , Shuji Urasaki , Katsuhisa Uno , Masahiro Kamiyama
IPC分类号： H03F1/32 , H03F3/60
CPC分类号： H03F1/3223 , H03F3/602
摘要： A non-linearity compensating circuit for a high frequency amplifier includes a first divider for dividing a high frequency input signal into two signals, a distortion generating amplifier for non-linearly amplifying the first output of the first divider, a linear amplifier for linearly amplifying the second output from the first divider, a second divider for dividing the output of the linear amplifier into first and second signals, a first combiner for combining the output of the distortion generating amplifier with the first signal to extract the distortion component of the distortion generating amplifier, and a second combiner for combining the second signal with the distortion component.
摘要翻译：一种用于高频放大器的非线性补偿电路，包括用于将高频输入信号分成两个信号的第一分频器，用于非线性放大第一分频器的第一输出的失真发生放大器，用于线性放大第二分频器，用于将线性放大器的输出分为第一和第二信号;第一组合器，用于将失真发生放大器的输出与第一信号组合，以提取失真发生放大器的失真分量以及用于将第二信号与失真分量组合的第二组合器。

6. 发明授权

US07541894B2 Phase-shifting circuit and multibit phase shifter 有权
标题翻译：移相电路和多位移相器
公开(公告)号：US07541894B2
公开(公告)日：2009-06-02
申请号：US10594009
申请日：2004-07-27
申请人： Kenichi Miyaguchi , Morishige Hieda , Tamotsu Nishino , Masatake Hangai , Moriyasu Miyazaki , Yukihisa Yoshida , Tadashi Takagi , Mikio Hatamoto
发明人： Kenichi Miyaguchi , Morishige Hieda , Tamotsu Nishino , Masatake Hangai , Moriyasu Miyazaki , Yukihisa Yoshida , Tadashi Takagi , Mikio Hatamoto
IPC分类号： H01P9/00
CPC分类号： H01P1/185 , H03H11/20 , H03H11/48 , H03H19/008
摘要： A phase-shifting circuit includes: a first parallel circuit which is connected across input and output terminals of a high frequency signal, composed of a first inductor and a first switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the first switching element is in the OFF state; a series circuit composed of a second inductor and a third inductor and connected in parallel with the first parallel circuit; a capacitor having its first terminal connected to a point of connection of the second and third inductors; and a second parallel circuit which is connected across a second terminal of the capacitor and a ground, composed of a fourth inductor and a second switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the second switching element is in the OFF state. The phase-shifting circuit establishes by switching an operation mode of setting the first switching element at the ON state and the second switching element at the OFF state, or an operation mode of setting the first switching element at the OFF state and the second switching element at the ON state.
摘要翻译：一种移相电路包括：第一并联电路，其连接在高频信号的输入和输出端上，该第一并联电路由第一电感器和第一开关元件组成，该第一电感器和第一开关元件呈现导通状态的通态， OFF状态，并且当所述第一开关元件处于OFF状态时，以规定频率产生并联谐振; 串联电路，由第二电感器和第三电感器组成，并与第一并联电路并联; 电容器，其第一端子连接到第二和第三电感器的连接点; 以及连接在电容器的第二端子和地之间的第二并联电路，由第四电感器和第二开关元件构成，该第四电感器和第二开关元件呈现处于导通状态的通状态和处于断开状态的电容性质，并且产生并联当第二开关元件处于断开状态时以规定频率进行谐振。移相电路通过切换将处于导通状态的第一开关元件设定为OFF状态的操作模式，或者将第一开关元件设定为OFF状态的操作模式和第二开关元件在ON状态。

7. 发明申请

US20070273456A1 Phase-shifting circuit and multibit phase shifter 有权
标题翻译：移相电路和多位移相器
公开(公告)号：US20070273456A1
公开(公告)日：2007-11-29
申请号：US10594009
申请日：2004-07-27
申请人： Kenichi Miyaguchi , Morishige Hieda , Tamotsu Nishino , Masatake Hangai , Moriyasu Miyazaki , Yukihisa Yoshida , Tadashi Takagi , Mikio Hatamoto
发明人： Kenichi Miyaguchi , Morishige Hieda , Tamotsu Nishino , Masatake Hangai , Moriyasu Miyazaki , Yukihisa Yoshida , Tadashi Takagi , Mikio Hatamoto
IPC分类号： H03H11/20
CPC分类号： H01P1/185 , H03H11/20 , H03H11/48 , H03H19/008
摘要： A phase-shifting circuit includes: a first parallel circuit which is connected across input and output terminals of a high frequency signal, composed of a first inductor and a first switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the first switching element is in the OFF state; a series circuit composed of a second inductor and a third inductor and connected in parallel with the first parallel circuit; a capacitor having its first terminal connected to a point of connection of the second and third inductors; and a second parallel circuit which is connected across a second terminal of the capacitor and a ground, composed of a fourth inductor and a second switching element that exhibits a through state in an ON state and a capacitive property in an OFF state, and produces parallel resonance at a prescribed frequency when the second switching element is in the OFF state. The phase-shifting circuit establishes by switching an operation mode of setting the first switching element at the ON state and the second switching element at the OFF state, or an operation mode of setting the first switching element at the OFF state and the second switching element at the ON state.
摘要翻译：一种移相电路包括：第一并联电路，其连接在高频信号的输入和输出端上，该第一并联电路由第一电感器和第一开关元件组成，该第一电感器和第一开关元件呈现导通状态的通态， OFF状态，并且当所述第一开关元件处于OFF状态时，以规定频率产生并联谐振; 串联电路，由第二电感器和第三电感器组成，并与第一并联电路并联; 电容器，其第一端子连接到第二和第三电感器的连接点; 以及连接在电容器的第二端子和地之间的第二并联电路，由第四电感器和第二开关元件构成，该第四电感器和第二开关元件呈现处于导通状态的通状态和处于断开状态的电容性质，并且产生并联当第二开关元件处于断开状态时以规定频率进行谐振。移相电路通过切换将处于导通状态的第一开关元件设定为OFF状态的操作模式，或者将第一开关元件设定为OFF状态的操作模式和第二开关元件在ON状态。

8. 发明授权

US07167064B2 Phase shift circuit and phase shifter 有权
标题翻译：移相电路和移相器
公开(公告)号：US07167064B2
公开(公告)日：2007-01-23
申请号：US10471174
申请日：2003-01-07
申请人： Kenichi Miyaguchi , Morishige Hieda , Michiaki Kasahara , Tadashi Takagi , Mikio Hatamoto
发明人： Kenichi Miyaguchi , Morishige Hieda , Michiaki Kasahara , Tadashi Takagi , Mikio Hatamoto
IPC分类号： H01P1/18
CPC分类号： H03H7/18 , H01P1/185 , H03H7/20 , H03H11/20
摘要： A phase shift circuit and a phase shifter are achieved which are small in size and wide in bandwidth. The phase shift circuit includes a capacitor, and a series circuit composed of a switching element which exhibits capacitivity when it is in an off-state and an inductor connected in series with this switching element, the series circuit being connected in parallel with the capacitor. The capacitor and one terminal of the series circuit are connected with a high frequency signal input/output terminal, and the other terminal thereof is connected with ground.
摘要翻译：实现了移相电路和移相器的尺寸小，带宽大。相移电路包括电容器，以及由开关元件构成的串联电路，该开关元件在处于断开状态时呈现电容性，并且与该开关元件串联连接的电感器，串联电路与电容器并联连接。串联电路的电容器和一个端子与高频信号输入/输出端子连接，另一个端子与地连接。

9. 发明授权

US5160984A Amplifying feedback FET semiconductor element 失效
标题翻译：放大反馈FET半导体元件
公开(公告)号：US5160984A
公开(公告)日：1992-11-03
申请号：US732934
申请日：1991-07-19
申请人： Mitsuru Mochizuki , Tadashi Takagi , Shuji Urasaki
发明人： Mitsuru Mochizuki , Tadashi Takagi , Shuji Urasaki
IPC分类号： H03F1/34 , H03F1/48 , H03F3/193 , H03F3/60 , H03F3/68
CPC分类号： H03F3/193 , H03F1/34 , H03F3/604 , H03F2200/372
摘要： In an amplifying feedback-type FET semiconductor element for use as a wide-band microwave amplifier in telecommunications system such as a radar, a monolithic IC feedback circuit is located between at least two parallel FET cells of an FET semiconductor element and also between gate and drain lead electrodes of the FET semiconductor element. The feedback circuit includes at least two connecting lines and at least one passive element and is connected to the two lead electrodes. With this arrangement, it is possible to reduce the total length of said connecting lines to a minimum, thus guaranteeing a frequency characteristic showing a flat gain over a wide band.
摘要翻译：在用作诸如雷达的电信系统中的宽带微波放大器的放大反馈型FET半导体元件中，单片IC反馈电路位于FET半导体元件的至少两个并联FET单元之间，也位于栅极与 FET半导体元件的漏极引线电极。反馈电路包括至少两条连接线和至少一个无源元件，并连接到两个引线电极。通过这种布置，可以将所述连接线的总长度减小到最小，从而保证在宽带上显示平坦增益的频率特性。

10. 发明授权

US4639694A Power distribution circuit having center portions of isolation resistors connected together 失效
标题翻译：配电电路具有连接在一起的隔离电阻的中心部分
公开(公告)号：US4639694A
公开(公告)日：1987-01-27
申请号：US726322
申请日：1985-04-23
申请人： Kiyoharu Seino , Tadashi Takagi , Fumio Takeda
发明人： Kiyoharu Seino , Tadashi Takagi , Fumio Takeda
IPC分类号： H01P5/19 , H01P5/12
CPC分类号： H01P5/12
摘要： A power distribution circuit having two Wilkinson type bi-distribution circuits each of which halves and then distributes its input and formed of a microstrip on a dielectric substrate or a semiconductor substrate. The input terminals of the two Wilkinson type bi-distribution circuits are connected, while substantially middle parts of resistances used as isolation resistances of the respective Wilkinson type bi-distribution circuits are connected by a metallic thin wire.
摘要翻译：具有两个Wilkinson型双分布电路的功率分配电路，每个电路分两部分，然后将其输入分布并由微带形成在电介质基板或半导体基板上。两个Wilkinson型双分布电路的输入端子被连接，而用作相应威尔金森型双分布电路的隔离电阻的大体上的中间部分通过金属细线连接。

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