公开(公告)号：US07907032B2

公开(公告)日：2011-03-15

申请号：US12464919

申请日：2009-05-13

申请人： Kazuya Yamamoto ,  Miyo Miyashita

发明人： Kazuya Yamamoto ,  Miyo Miyashita

IPC分类号： H01P5/18 ,  H03H11/16

CPC分类号： H01P5/18

摘要： A directional coupler includes a main line connected at a first end to an input port and at a second end to an output port, a coupled line connected at a first end to a coupled port and at a second end to an isolated port, and a phase shifter connected at a first end to the isolated port and at a second end to the coupled port. The phase shifter phase shifts a second reflected wave component such that the second reflected wave component is opposite in phase to a first reflected wave component, the second reflected wave component traveling from the output port to the coupled port through the isolated port and the phase shifter, the first reflected wave component traveling from the output port to the coupled port through the coupled line.

摘要翻译： 定向耦合器包括在第一端连接到输入端口并且在第二端连接到输出端口的主线，在第一端处连接到耦合端口并且在第二端部处连接到隔离端口的耦合线，以及 移相器在第一端连接到隔离端口，在第二端连接到耦合端口。 移相器相移第二反射波分量，使得第二反射波分量与第一反射波分量相位相反，第二反射波分量通过隔离端口和相移器从输出端口传播到耦合端口 第一反射波分量从输出端口通过耦合线行进到耦合端口。

公开(公告)号：US07688133B2

公开(公告)日：2010-03-30

申请号：US12254069

申请日：2008-10-20

申请人： Kazuya Yamamoto ,  Miyo Miyashita

发明人： Kazuya Yamamoto ,  Miyo Miyashita

IPC分类号： H03F1/14

CPC分类号： H03F3/191 ,  H03F1/0261 ,  H03F3/72 ,  H03F2200/18 ,  H03F2200/408 ,  H03F2203/7239

摘要： A power amplifier includes: an amplifying transistor; a bias circuit; a first diode; a second diode; a matching attenuating circuit; a first current mirror circuit; a serial resonant circuit, and a switch. In an amplification mode, the bias circuit supplies a bias current to the amplifying transistor, and the first current mirror circuit turns off the first and second diodes, and the switch. In an attenuation mode, the bias circuit supplies no bias current to the amplifying transistor, and the first current mirror circuit turns on the first and second diodes and the switch.

摘要翻译： 功率放大器包括：放大晶体管; 偏置电路; 第一个二极管; 第二个二极管; 匹配衰减电路; 第一电流镜电路; 串联谐振电路和开关。 在放大模式中，偏置电路向放大晶体管提供偏置电流，并且第一电流镜电路关断第一和第二二极管以及开关。 在衰减模式中，偏置电路不向放大晶体管提供偏置电流，并且第一电流镜电路导通第一和第二二极管和开关。

公开(公告)号：US20050088233A1

公开(公告)日：2005-04-28

申请号：US10922959

申请日：2004-08-23

申请人： Miyo Miyashita ,  Kazuya Yamamoto

发明人： Miyo Miyashita ,  Kazuya Yamamoto

IPC分类号： H03F3/19 ,  H03F3/45

CPC分类号： H03F3/45085 ,  H03F3/19

摘要： In a driver circuit including transistors each having an emitter follower configuration and a pair of differential transistors with emitter outputs of the transistors of the emitter follower configuration as inputs, end terminals of the pair of differential transistors are connected to individual bonding pads, and the respective bonding pads and voltage sources are individually connected by wires that function as inductors. Thereby, even in the case where the lengths of the wires of output terminals change according to packaging, outputs can be matched by determining the wire lengths of the wires suitably.

摘要翻译： 在包括具有发射极跟随器配置的晶体管的驱动器电路和具有射极跟随器结构的晶体管的发射极输出的一对差分晶体管作为输入的情况下，该对差分晶体管的端部端子连接到单独的焊盘， 接合焊盘和电压源通过用作电感器的导线分别连接。 因此，即使在输出端子的导线的长度根据封装而变化的情况下，也可以通过适当地确定电线的长度来匹配输出。

公开(公告)号：US5652545A

公开(公告)日：1997-07-29

申请号：US609788

申请日：1996-03-01

申请人： Miyo Miyashita ,  Masaaki Shimada ,  Kazuya Yamamoto

发明人： Miyo Miyashita ,  Masaaki Shimada ,  Kazuya Yamamoto

IPC分类号： H03K19/0952 ,  H03F1/08 ,  H03F1/42 ,  H03F1/48 ,  H03F3/26 ,  H03F3/45 ,  H03F3/50

CPC分类号： H03F3/45179 ,  H03F1/08 ,  H03F1/48 ,  H03F3/265 ,  H03F3/45183 ,  H03F3/505 ,  H03F2203/45656 ,  H03F2203/45702

摘要： A differential amplifier is connected to a push-pull-type source follower circuit that receives biphase signals. The source follower circuit has a first set of FETs including a first source follower FET and a first current source FET and a second set of FETs including a second source follower FET and a second current source FET. A first coupling capacitance element connects the first current source FET and the second source follower FET, and a second coupling capacitance element connects the second current source FET and the first source follower FET. A diode or a resistor connects the source terminals of the first and second current source FETs to a voltage source.

摘要翻译： 差分放大器连接到接收双相信号的推挽型源极跟随器电路。 源极跟随器电路具有包括第一源极跟随器FET和第一电流源FET的第一组FET，以及包括第二源极跟随器FET和第二电流源FET的第二组FET。 第一耦合电容元件连接第一电流源FET和第二源极跟随器FET，第二耦合电容元件连接第二电流源FET和第一源极跟随器FET。 二极管或电阻将第一和第二电流源FET的源极端子连接到电压源。

公开(公告)号：US08461929B2

公开(公告)日：2013-06-11

申请号：US13195066

申请日：2011-08-01

申请人： Kazuya Yamamoto ,  Miyo Miyashita ,  Takayuki Matsuzuka ,  Kenji Mukai

发明人： Kazuya Yamamoto ,  Miyo Miyashita ,  Takayuki Matsuzuka ,  Kenji Mukai

IPC分类号： H03G3/30

CPC分类号： H03F3/191 ,  H03F1/56 ,  H03F3/193 ,  H03F2200/15 ,  H03F2200/18 ,  H03F2200/211 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03G1/007

摘要： A power amplifier includes a first amplifier unit, a second amplifier unit, and an attenuator. The second amplifier receives a signal from the first amplifier unit and amplifies the signal. The attenuator is provided between the first and second amplifier units. The attenuator has arms, including at least one parallel arm and at least one series arm, and has switches connected to the arms to switch the electrical connection states of the arms with respect to the first and second amplifier units. The at least one parallel arm and the at least one series arm are alternately arranged, in the order named, as viewed in the direction from the first amplifier unit to the second amplifier unit.

摘要翻译： 功率放大器包括第一放大器单元，第二放大器单元和衰减器。 第二放大器从第一放大器单元接收信号并放大信号。 衰减器设置在第一和第二放大器单元之间。 衰减器具有包括至少一个并联臂和至少一个串联臂的臂，并且具有连接到臂的开关，以相对于第一和第二放大器单元切换臂的电连接状态。 按照从第一放大器单元到第二放大器单元的方向观察，所述至少一个并联臂和至少一个串联臂交替排列。

公开(公告)号：US07609126B2

公开(公告)日：2009-10-27

申请号：US11465866

申请日：2006-08-21

申请人： Kazuya Yamamoto ,  Miyo Miyashita

发明人： Kazuya Yamamoto ,  Miyo Miyashita

IPC分类号： H03H7/25

CPC分类号： H03G1/0088 ,  H01L27/0605 ,  H03H7/253

摘要： Diodes and are connected between an input terminal and an output terminal. These diodes are connected in parallel, and the cathode of a latter-stage diode is connected to the anode of a former-stage diode through a capacitor. Specifically, from the DC point of view, the diodes are serially connected, and, from the AC point of view, the diodes are connected in parallel through the capacitor.

摘要翻译： 二极管并连接在输入端子和输出端子之间。 这些二极管并联连接，后级二极管的阴极通过电容器连接到前级二极管的阳极。 具体来说，从DC的观点出发，二极管串联连接，从AC角度看，二极管通过电容器并联连接。

公开(公告)号：US20090174484A1

公开(公告)日：2009-07-09

申请号：US12131959

申请日：2008-06-03

申请人： Kazuya Yamamoto ,  Miyo Miyashita

发明人： Kazuya Yamamoto ,  Miyo Miyashita

IPC分类号： H03G3/30

CPC分类号： H03F3/191 ,  H03G1/0052

摘要： An amplifying transistor for amplifying a radio frequency signal between an input terminal and an output terminal. The cathode of a first diode is connected to the input terminal and the anode of a second diode is connected to the output terminal. A matching and attenuating circuit is connected between the anode of the first diode and the cathode of the second diode. A matching and attenuating circuit reduces impedance mismatches on the input terminal side and the output terminal side, and attenuates the radio frequency signal. In an amplification mode, a bias circuit supplies a bias current to an amplifying transistor and a current mirror circuit turns off the first and second diodes. In an attenuation mode, the bias circuit supplies no bias current to the amplifying transistor and the current mirror circuit turns on the first and second diodes.

摘要翻译： 一种放大晶体管，用于放大输入端和输出端之间的射频信号。 第一二极管的阴极连接到输入端子，第二二极管的阳极连接到输出端子。 匹配和衰减电路连接在第一二极管的阳极和第二二极管的阴极之间。 匹配和衰减电路减少输入端侧和输出端侧的阻抗失配，并衰减射频信号。 在放大模式中，偏置电路向放大晶体管提供偏置电流，并且电流镜电路关断第一和第二二极管。 在衰减模式中，偏置电路不向放大晶体管提供偏置电流，并且电流镜电路导通第一和第二二极管。

公开(公告)号：US07522001B2

公开(公告)日：2009-04-21

申请号：US11946931

申请日：2007-11-29

申请人： Kazuya Yamamoto ,  Miyo Miyashita

发明人： Kazuya Yamamoto ,  Miyo Miyashita

IPC分类号： H03G3/10

CPC分类号： H03F1/302 ,  H03F3/19 ,  H03F2200/18 ,  H03F2200/447 ,  H03F2200/451 ,  H03G1/0035

摘要： An emitter follower circuit applies to an input terminal of a second amplifying device a voltage according to a reference voltage applied to a reference terminal. First and second resistors are connected in series between the reference terminal and an input terminal of a first amplifying device. The collector of a first transistor is connected to the reference terminal and a control voltage is applied to the base of the first transistor. A third resistor is connected between the emitter of the first transistor and a grounding point. A current mirror circuit draws a current proportional to a current input from the collector of the first transistor from a connection point of the first and second resistors.

摘要翻译： 射极跟随器电路根据施加到参考端子的参考电压向第二放大器件的输入端子施加电压。 第一和第二电阻串联连接在参考端和第一放大器的输入端之间。 第一晶体管的集电极连接到参考端子，并且控制电压被施加到第一晶体管的基极。 第三电阻连接在第一晶体管的发射极和接地点之间。 电流镜电路从第一和第二电阻器的连接点吸取与来自第一晶体管的集电极的电流成比例的电流。

公开(公告)号：US07193463B2

公开(公告)日：2007-03-20

申请号：US10922959

申请日：2004-08-23

申请人： Miyo Miyashita ,  Kazuya Yamamoto

发明人： Miyo Miyashita ,  Kazuya Yamamoto

IPC分类号： H03F3/45

CPC分类号： H03F3/45085 ,  H03F3/19

摘要： In a driver circuit including transistors each having an emitter follower configuration and a pair of differential transistors with emitter outputs of the transistors of the emitter follower configuration as inputs, end terminals of the pair of differential transistors are connected to individual bonding pads, and the respective bonding pads and voltage sources are individually connected by wires that function as inductors. Thereby, even in the case where the lengths of the wires of output terminals change according to packaging, outputs can be matched by determining the wire lengths of the wires suitably.

摘要翻译： 在包括具有发射极跟随器配置的晶体管的驱动器电路和具有射极跟随器结构的晶体管的发射极输出的一对差分晶体管作为输入的情况下，该对差分晶体管的端部端子连接到单独的焊盘， 接合焊盘和电压源通过用作电感器的导线分别连接。 因此，即使在输出端子的导线的长度根据封装而变化的情况下，也可以通过适当地确定电线的长度来匹配输出。

公开(公告)号：US08217722B2

公开(公告)日：2012-07-10

申请号：US13079046

申请日：2011-04-04

申请人： Kazuya Yamamoto ,  Miyo Miyashita ,  Satoshi Suzuki ,  Takayuki Matsuzuka

发明人： Kazuya Yamamoto ,  Miyo Miyashita ,  Satoshi Suzuki ,  Takayuki Matsuzuka

IPC分类号： H03F3/20

CPC分类号： H03F3/195 ,  H03F1/0277 ,  H03F3/189 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/27 ,  H03F2200/411 ,  H03F2203/7206 ,  H03F2203/7236 ,  H03G1/0088

摘要： A power amplifier comprises: an amplifying transistor for amplifying an input signal; a reference voltage generating circuit which generates a reference voltage; a bias circuit generating a bias voltage based on the reference voltage and supplying the bias voltage to the amplifying transistor; and a booster elevating an enable voltage input from outside and outputting the enable voltage. The reference voltage generating circuit is turned ON/OFF in correspondence with an output voltage of the booster. The booster includes: an enable terminal to which the enable voltage is applied; a power source terminal connected to a power source; a transistor having a control electrode connected to the enable terminal, a first electrode connected to the power source terminal, and a second electrode that is grounded; and a FET resistor connected between the first electrode of the transistor and the power source terminal. A gate electrode of the FET resistor is open.

摘要翻译： 功率放大器包括：放大晶体管，用于放大输入信号; 产生参考电压的基准电压产生电路; 偏置电路，基于所述参考电压产生偏置电压，并将所述偏置电压提供给所述放大晶体管; 并且升压器提升从外部输入的使能电压并输出使能电压。 基准电压发生电路与增压器的输出电压对应地接通/断开。 升压器包括：施加使能电压的使能端子; 连接到电源的电源端子; 具有连接到使能端子的控制电极的晶体管，连接到电源端子的第一电极和接地的第二电极; 以及连接在晶体管的第一电极和电源端子之间的FET电阻器。 FET电阻的栅电极断开。