公开(公告)号：US5770970A

公开(公告)日：1998-06-23

申请号：US705244

申请日：1996-08-30

申请人： Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

发明人： Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

IPC分类号： H03F3/24 ,  H03F3/21 ,  H03F3/60 ,  H04B1/04 ,  H03F3/68

CPC分类号： H03F3/211 ,  H03F3/604

摘要： The output of a digital modulator is put into a power amplifying device, is distributed into n pieces in an n-power divider in the power amplifier, passes through n input phase shifters differing individually in the phase change amount, is amplified by n power amplifiers, passes through n output phase shifters to match the phase of n signals, is combined in an n-power combiner, and is issued from an output terminal to a phase shifter, and the output of the phase shifter is issued to a transmission antenna. Herein, the phase value of the phase shifter is determined so as to extend the region of the output load impedance for satisfying the specific value of unwanted radiation, and so that the output load impedance range of the load impedance of the power amplifier may be optimize to the impedance change range of the trans missionantenna, thereby eliminating the isolator and presenting a transmitting device of a portable wireless system realizing smaller size, higher performance, and lower cost of portable wireless system.

公开(公告)号：US5901345A

公开(公告)日：1999-05-04

申请号：US056446

申请日：1998-04-06

申请人： Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

发明人： Hikaru Ikeda ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Nobuo Fuse ,  Hideki Yagita ,  Hiroshi Haruki

IPC分类号： H03F3/24 ,  H03F3/21 ,  H03F3/60 ,  H04B1/04 ,  H03F3/68

CPC分类号： H03F3/211 ,  H03F3/604

摘要： The output of a digital modulator is put into a power amplifying device, is distributed into n pieces in an n-power divider in the power amplifier, passes through n input phase shifters differing individually in the phase change amount, is amplified by n power amplifiers, passes through n output phase shifters to match the phase of n signals, is combined in an n-power combiner, and is issued from an output terminal to a phase shifter, and the output of the phase shifter is issued to a transmission antenna. Herein, the phase value of the phase shifter is determined so as to extend the region of the output load impedance for satisfying the specific value of unwanted radiation, and so that the output load impedance range of the load impedance of the power amplifier may be optimize to the impedance change range of the trans missionantenna, thereby eliminating the isolator and presenting a transmitting device of a portable wireless system realizing smaller size, higher performance, and lower cost of portable wireless system.

摘要翻译： 数字调制器的输出放入功率放大装置中，在功率放大器的n功率分配器中分配成n个片段，通过相位变化量不同的n个输入移相器，由n个功率放大器 ，通过n个输出移相器以匹配n个信号的相位，被组合在n个功率组合器中，并且从输出端子发送到移相器，并且将移相器的输出发送到发送天线。 这里，确定移相器的相位值，以便扩大输出负载阻抗的区域以满足不需要的辐射的特定值，并且使得功率放大器的负载阻抗的输出负载阻抗范围可以被优化 到传输天线的阻抗变化范围，从而消除了隔离器并呈现便携式无线系统的发送装置，实现便携式无线系统的更小的尺寸，更高的性能和更低的成本。

公开(公告)号：US5852384A

公开(公告)日：1998-12-22

申请号：US844039

申请日：1997-04-18

申请人： Makoto Sakakura ,  Hisanaga Miyoshi ,  Kouji Hashimoto ,  Nobuo Fuse ,  Hiroaki Kosugi ,  Kaoru Ishida

发明人： Makoto Sakakura ,  Hisanaga Miyoshi ,  Kouji Hashimoto ,  Nobuo Fuse ,  Hiroaki Kosugi ,  Kaoru Ishida

IPC分类号： H03B5/18 ,  H03B5/12

CPC分类号： H03B5/1847

摘要： A dual band oscillator circuit according to the present invention comprises an oscillator circuit portion that oscillates at a first frequency, an oscillator circuit portion that oscillates at a second frequency, a buffer amplifier circuit portion to which an output of the first oscillator circuit portion is input through a first stage-to-stage coupling element and an output of the second oscillator circuit portion is input through a second stage-to-stage coupling element. Operation is switched between the first and second oscillator circuits by an externally applied control voltage signal.

摘要翻译： 根据本发明的双频带振荡器电路包括以第一频率振荡的振荡器电路部分，以第二频率振荡的振荡器电路部分，输入第一振荡器电路部分的输出的缓冲放大器电路部分 通过第一级到级耦合元件，并且第二振荡器电路部分的输出通过第二级到级耦合元件输入。 通过外部施加的控制电压信号在第一和第二振荡器电路之间切换操作。

公开(公告)号：US06421530B1

公开(公告)日：2002-07-16

申请号：US08933848

申请日：1997-09-19

申请人： Hisashi Adachi ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Hiroshi Haruki ,  Junichi Yasuno ,  Kazuhiko Ikeda

发明人： Hisashi Adachi ,  Hiroaki Kosugi ,  Kaoru Ishida ,  Hiroshi Haruki ,  Junichi Yasuno ,  Kazuhiko Ikeda

IPC分类号： H04B140

CPC分类号： H04B1/403

摘要： The present invention concerns a radio circuit including a local oscillator, a first receive frequency converter, a frequency divider and a demodulator. A receive signal and an output of the local oscillator are input to the first receive frequency converter. The receive signal is converted into a first intermediate signal by the first receive frequency converter, and the first intermediate frequency signal is input to the demodulator. The output of the local oscillator is frequency-divided by the frequency divider and also input to the demodulator. The signal converted into the first intermediate frequency is demodulated into a baseband signal by the demodulator.

摘要翻译： 本发明涉及包括本地振荡器，第一接收频率转换器，分频器和解调器的无线电电路。 接收信号和本地振荡器的输出被输入到第一接收变频器。 接收信号由第一接收频率转换器转换成第一中间信号，第一中频信号被输入到解调器。 本地振荡器的输出由分频器分频，并输入到解调器。 转换成第一中频的信号由解调器解调为基带信号。

公开(公告)号：US5371477A

公开(公告)日：1994-12-06

申请号：US924937

申请日：1992-08-05

申请人： Hikaru Ikeda ,  Toshio Ishizaki ,  Hiroaki Kosugi ,  Yoshishige Yoshikawa ,  Kunihiko Kanazawa

发明人： Hikaru Ikeda ,  Toshio Ishizaki ,  Hiroaki Kosugi ,  Yoshishige Yoshikawa ,  Kunihiko Kanazawa

IPC分类号： H03F3/193 ,  H03G3/30 ,  H03G3/10

CPC分类号： H03G3/3047 ,  H03F3/1935

摘要： A linear amplifier has an input signal controller for controlling the level of an input signal to a field-effect transistor (FET) using a DC gate current measured by a gate current detector arranged between a gate bias terminal and a drain bias terminal of the FET and a nonlinear resistor whose resistance can be varied corresponding to an inter-terminal voltage between the gate and the drain of the FET, in which the voltage at the gate of the FET is adjusted to a rate such that a particular drain current which has been determined just before the starting of burst signal transmission corresponding to the level of a power output of the linear amplifier is obtained, and is maintained for a given period of time.

摘要翻译： 线性放大器具有输入信号控制器，用于使用布置在FET的栅极偏置端子和漏极偏置端子之间的栅极电流检测器测量的DC栅极电流来控制到场效应晶体管（FET）的输入信号的电平 以及一个非线性电阻，其电阻可以相应于FET的栅极和漏极之间的端子间电压而变化，其中FET的栅极处的电压被调节到使得具有特定的漏极电流的速率 在与线性放大器的功率输出的电平相对应的脉冲串信号传输开始之前确定，并且保持给定的时间段。

公开(公告)号：US06169461A

公开(公告)日：2001-01-02

申请号：US09123163

申请日：1998-07-27

申请人： Toshiaki Andoh ,  Makoto Sakakura ,  Takeshi Miura ,  Hiroaki Kosugi ,  Kaoru Ishida

发明人： Toshiaki Andoh ,  Makoto Sakakura ,  Takeshi Miura ,  Hiroaki Kosugi ,  Kaoru Ishida

IPC分类号： H03B518

CPC分类号： H03B5/1231 ,  H03B5/1218 ,  H03B5/1243 ,  H03B5/1847 ,  H03B2200/004 ,  H03B2200/0086 ,  H03B2200/0098

摘要： A high-frequency oscillating circuit that is not degraded by external electromagnetic interference. The high-frequency oscillating circuit includes first and second oscillating transistors wherein the bases are connected together directly or via a capacitor having a sufficiently low impedance at an oscillating frequency, and wherein a differential signal output is obtained between the emitters of the first and second oscillating transistors. Also provided is a resonating circuit formed in a module and a separate negative-resistance-generating circuit formed on an integrated circuit for achieving an oscillator that has a high Q factor and a high C/N ratio.

摘要翻译： 高频振荡电路不受外部电磁干扰的影响。 高频振荡电路包括第一和第二振荡晶体管，其中基极直接或通过振荡频率具有足够低阻抗的电容器连接在一起，并且其中在第一和第二振荡器的发射极之间获得差分信号输出 晶体管。 还提供了一种形成在模块中的谐振电路和形成在用于实现具有高Q因子和高C / N比的振荡器的集成电路上的单独的负电阻产生电路。

公开(公告)号：US6054900A

公开(公告)日：2000-04-25

申请号：US265257

申请日：1999-03-09

申请人： Kaoru Ishida ,  Hiroaki Kosugi ,  Isao Nasuno ,  Kazuhiko Nakayama

发明人： Kaoru Ishida ,  Hiroaki Kosugi ,  Isao Nasuno ,  Kazuhiko Nakayama

IPC分类号： H01L23/66 ,  H03F3/193 ,  H03F3/60 ,  H01Q11/12 ,  H03F3/68

CPC分类号： H01L24/49 ,  H01L23/66 ,  H03F3/604 ,  H01L2223/6644 ,  H01L2224/05554 ,  H01L2224/48091 ,  H01L2224/49171 ,  H01L2224/49175 ,  H01L24/48 ,  H01L2924/00014 ,  H01L2924/01004 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01013 ,  H01L2924/01033 ,  H01L2924/01074 ,  H01L2924/01082 ,  H01L2924/10329 ,  H01L2924/1306 ,  H01L2924/14 ,  H01L2924/1423

摘要： A power amplifier MMIC has a first stage amplifier circuit having a transistor and matching circuits provided on input and output sides of the transistor; a plurality of final stage transistors connected in parallel; a first line connected between adjacent gates of the plurality of final stage amplifiers; a second line, connected between adjacent drains of the plurality of final stage amplifiers, for correcting an input signal phase shift caused by the presence of the first line; and an output matching circuit connected to one of connection points between the second line and the drains, and wherein an output of the first stage amplifier circuit is coupled to one gate of a final stage transistor whose drain is not connected to the output matching circuit, and the first stage amplifier circuit and the plurality of final stage transistors are arranged longitudinally alongside each other.

摘要翻译： 功率放大器MMIC具有具有晶体管的第一级放大器电路和设置在晶体管的输入和输出侧的匹配电路; 并联连接的多个末级晶体管; 连接在所述多个最终级放大器的相邻门之间的第一线; 第二线，连接在多个最后级放大器的相邻排水口之间，用于校正由第一线的存在引起的输入信号相移; 以及输出匹配电路，其连接到第二线路和漏极之间的连接点之一，并且其中第一级放大器电路的输出耦合到漏极未连接到输出匹配电路的最终级晶体管的一个栅极， 并且第一级放大器电路和多个最终级晶体管彼此纵向排列。

公开(公告)号：US06690249B2

公开(公告)日：2004-02-10

申请号：US10102732

申请日：2002-03-22

申请人： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

发明人： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

IPC分类号： H01P512

CPC分类号： H01P5/10 ,  H01P5/12 ,  H03F3/602

摘要： A high power amplifier has a first balun propagating a half of an input signal to an in-phase output terminal, and also propagating a fourth of the input signal to first and second opposite-phase output terminals, the signal propagated to the first and second opposite-phase output terminals lagging 180 degrees behind the signal propagated to the in-phase output terminal; first and second power amplifier circuits connected to the first and second opposite-phase output terminals of the first balun and having the same characteristics; a third power amplifier circuit connected to the in-phase output terminal of the first balun and having output power substantially twice as much as the output power of the first or second power amplifier circuit; and a second balun having first and second opposite-phase input terminals for receiving the outputs of the first and second power amplifier circuits, having an in-phase input terminal for receiving the output of the third power amplifier circuit, combining the outputs of the first, second and third power amplifier circuits, and propagating combined output.

摘要翻译： 高功率放大器具有将输入信号的一半传播到同相输出端的第一平衡 - 不平衡转换器，并且还将第四输入信号传播到第一和第二反相输出端，信号传播到第一和第二 反相输出端子滞后于传播到同相输出端子的信号后方180度; 第一和第二功率放大器电路连接到第一平衡 - 不平衡变换器的第一和第二反相输出端子并且具有相同的特性; 连接到第一平衡 - 不平衡变换器的同相输出端的第三功率放大器电路，其输出功率基本上是第一或第二功率放大器电路的输出功率的两倍; 以及具有用于接收第一和第二功率放大器电路的输出的第一和第二反相输入端的第二平衡 - 不平衡变压器，具有用于接收第三功率放大器电路的输出的同相输入端， ，第二和第三功率放大器电路，以及传播组合输出。

公开(公告)号：US06590906B1

公开(公告)日：2003-07-08

申请号：US09377988

申请日：1999-08-20

申请人： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

发明人： Kaoru Ishida ,  Masayuki Miyaji ,  Hiroaki Kosugi ,  Shin'ichi Kugou

IPC分类号： H04J100

CPC分类号： H04L27/2614 ,  H04L27/2602 ,  H04L27/2637

摘要： To reduce the size of a multi-carrier transmitter circuit for a mobile communication base station, by suppressing instantaneous peak output power to a small value with respect to a wide-band signal of a few MHz to tens of MHz so that the peak factor of a multi-carrier signal is reduced. In a multi-carrier transmitter circuit for modulating carriers with corresponding input signals to generate modulated signals and then multiplexing said modulated signals and outputting a multiplexed signal, the multi-carrier transmitter circuit is equipped with carrier generators 3-1 to 3-n for generating each said carrier, modulators 5-1 to 5-n for modulating each carrier with each input signal and outputting said modulated signal, an adder 6 for multiplexing said modulated signals and outputting the multiplexed signal, variable attenuators 2-1 to 2-n for directly or indirectly adjusting a level of each input signal, phase detectors 4-1 to 4-n for detecting a phase of each carrier, and a control circuit 7 for controlling the variable attenuators 2-1 to 2-n in accordance with the phase of each carrier.

摘要翻译： 为了减小用于移动通信基站的多载波发射机电路的尺寸，通过相对于几MHz至几十MHz的宽带信号将瞬时峰值输出功率抑制到较小值，使得峰值因子 减少了多载波信号。 在用于用相应输入信号调制载波以产生调制信号，然后复用所述调制信号并输出​​多路复用信号的多载波发射机电路中，多载波发射机电路配备有载波发生器3-1至3-n，用于产生 每个所述载波，调制器5-1至5-n用于用每个输入信号调制每个载波并输出所述调制信号;加法器6，用于复用所述调制信号并输出​​多路复用信号;可变衰减器2-1至2-n，用于 直接或间接地调整每个输入信号的电平，用于检测每个载波的相位的相位检测器4-1至4-n，以及用于根据相位控制可变衰减器2-1至2-n的控制电路7 的每个运营商。

公开(公告)号：US06329875B1

公开(公告)日：2001-12-11

申请号：US09514777

申请日：2000-02-28

申请人： Kaoru Ishida ,  Toshio Obara ,  Hiroaki Kosugi ,  Naoki Komatsu

发明人： Kaoru Ishida ,  Toshio Obara ,  Hiroaki Kosugi ,  Naoki Komatsu

IPC分类号： H03F114

CPC分类号： H03F1/0277 ,  H03F1/0288 ,  H03F3/72 ,  H03F2203/7239

摘要： A power amplifier has an input terminal; an output terminal; an N number of bypassable amplification circuits which are connected directly or indirectly in a sequential manner between the input terminal and the output terminal; an impedance conversion circuit which is connected directly or indirectly between the amplification circuit of a final stage and the output terminal; and a bias control circuit which controls the amplification circuits, each of the amplification circuits is configured by a high-frequency switch circuit, and an amplifier which is connected directly or indirectly to the switch circuit, and the bias control circuit controls power source voltages of the amplifiers and controls status of the switch circuit.

摘要翻译： 功率放大器具有输入端子; 输出端子; N个可旁路放大电路，其以输入端子和输出端子之间的顺序方式直接或间接连接; 直接或间接连接在最后级的放大电路和输出端之间的阻抗转换电路; 以及控制放大电路的偏置控制电路，每个放大电路由高频开关电路和直接或间接地连接到开关电路的放大器构成，偏置控制电路控制电源电压 放大器和开关电路的控制状态。