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11. 发明授权

US08217722B2 Power amplifier 有权
标题翻译：功率放大器
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。

12. 发明申请

US20120154055A1 POWER AMPLIFIER 有权
标题翻译：功率放大器
公开(公告)号：US20120154055A1
公开(公告)日：2012-06-21
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： H03F3/68 , H03F3/04
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。

13. 发明授权

US07602238B2 Power amplifier 有权
标题翻译：功率放大器
公开(公告)号：US07602238B2
公开(公告)日：2009-10-13
申请号：US12098538
申请日：2008-04-07
申请人： Takayuki Matsuzuka , Kazuya Yamamoto
发明人： Takayuki Matsuzuka , Kazuya Yamamoto
IPC分类号： H03F1/14
CPC分类号： H03F3/245 , H03F1/0261 , H03F1/302 , H03F1/303 , H03F3/19 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/18 , H03F2200/411 , H03F2200/451
摘要： An amplifier element amplifies RF signals. An emitter follower unit drives the amplifier element at a constant voltage corresponding to a reference voltage supplied to a reference terminal from outside. A current injection unit drives the amplifier element at a constant current corresponding to the reference voltage. An analog control unit analogically controls the output voltage of the emitter follower unit in correspondence with the control voltage supplied to a control terminal from outside. A mode switching unit switches whether the emitter follower unit is operated or not in correspondence with the control voltage.
摘要翻译：放大器元件放大RF信号。射极跟随器单元以与从外部提供给参考端子的参考电压相对应的恒定电压来驱动放大器元件。电流注入单元以对应于参考电压的恒定电流驱动放大器元件。模拟控制单元对应于从外部提供给控制端子的控制电压模拟地控制发射极跟随器单元的输出电压。模式切换单元根据控制电压来切换射极跟随器单元是否工作。

14. 发明申请

US20120146733A1 POWER AMPLIFIER 有权
标题翻译：功率放大器
公开(公告)号：US20120146733A1
公开(公告)日：2012-06-14
申请号：US13195051
申请日：2011-08-01
申请人： Takayuki Matsuzuka , Kazuya Yamamoto , Takao Moriwaki
发明人： Takayuki Matsuzuka , Kazuya Yamamoto , Takao Moriwaki
IPC分类号： H03F3/04
CPC分类号： H03F3/191 , H03F1/0261 , H03F1/565 , H03F3/60 , H03F2200/18 , H03F2200/318
摘要： A power amplifier includes an input matching circuit, an amplifier transistor for amplifying an input signal received through the input matching circuit, an element for varying the collector voltage of the amplifier transistor, a bias circuit for varying the idle current in the amplifier transistor, and a compensation circuit for varying capacitance of the input matching circuit to maintain the phase shift and the input reflection in the power amplifier constant when the collector voltage and the idle current are varied, to prevent a decrease in the efficiency of the power amplifier due to changes in the output power of the amplifier transistor.
摘要翻译：功率放大器包括输入匹配电路，用于放大通过输入匹配电路接收的输入信号的放大器晶体管，用于改变放大器晶体管的集电极电压的元件，用于改变放大器晶体管中的空闲电流的偏置电路，以及用于改变输入匹配电路的电容的补偿电路，以在集电极电压和空闲电流变化时保持功率放大器的相移和输入反射恒定，以防止由于变化而导致的功率放大器的效率的降低在放大晶体管的输出功率。

15. 发明授权

US07605648B2 Power amplifier 有权
标题翻译：功率放大器
公开(公告)号：US07605648B2
公开(公告)日：2009-10-20
申请号：US11947831
申请日：2007-11-30
申请人： Kazuya Yamamoto , Satoshi Suzuki , Tomoyuki Asada , Takayuki Matsuzuka , Teruyuki Shimura
发明人： Kazuya Yamamoto , Satoshi Suzuki , Tomoyuki Asada , Takayuki Matsuzuka , Teruyuki Shimura
IPC分类号： H03F1/14
CPC分类号： H03F1/0277 , H03F1/0261 , H03F1/30 , H03F3/195 , H03F2200/411 , H03F2200/451
摘要： A power amplifier according to the present invention is operated by switching a main power amplifier and a subsidiary power amplifier. The idle current of the subsidiary power amplifier is smaller than the idle current of the main power amplifier. Each of the main power amplifier and the subsidiary power amplifier has a former amplification element for amplifying RF signals, a latter amplification element for amplifying output signals from the former amplification element, a former bias circuit for driving the former amplification elements, and a latter bias circuit for driving the latter amplification elements, respectively. The interval between the latter amplification element of the main power amplifier and the latter amplification element of the subsidiary power amplifier is not more than 100 μm. The interval between the latter amplification element of the main power amplifier and the latter bias circuit of the subsidiary power amplifier is not less than 200 μm.
摘要翻译：根据本发明的功率放大器通过切换主功率放大器和辅助功率放大器来操作。辅助功率放大器的空闲电流小于主功率放大器的空闲电流。每个主功率放大器和辅助功率放大器具有用于放大RF信号的前置放大元件，用于放大来自前一放大元件的输出信号的后一放大元件，用于驱动前一放大元件的前一偏置电路，以及后一偏置电路分别用于驱动后面的放大元件。主功率放大器的后一放大元件与辅助功率放大器的后一放大元件之间的间隔不大于100um。主功率放大器的后一个放大元件与辅助功率放大器的后一个偏置电路之间的间隔不小于200μm。

16. 发明申请

US20080238562A1 VOLTAGE-CONTROLLED OSCILLATOR 有权
标题翻译：电压控制振荡器
公开(公告)号：US20080238562A1
公开(公告)日：2008-10-02
申请号：US11936142
申请日：2007-11-07
申请人： Takayuki Matsuzuka , Kazuya Yamamoto
发明人： Takayuki Matsuzuka , Kazuya Yamamoto
IPC分类号： H03L1/02
CPC分类号： H03L1/023 , H03B5/04 , H03B5/1203 , H03B5/1231 , H03B5/124
摘要： A voltage-controlled oscillator has an oscillation frequency controlled through a voltage applied across ends of a variable-capacitance element. The voltage-controlled oscillator has a frequency control bias circuit which applies to a first end of the variable-capacitance element a voltage for frequency control according to a control voltage, a first current source which generates a first current according to the control voltage, a second current source which generates a second current according to temperature, independent of the control voltage, a converting resistor which converts a current, obtained by adding together the first and second currents, into a voltage, and a temperature compensation bias circuit which applies to the second end of the variable-capacitance element a voltage for temperature compensation according to the voltage produced by the converting resistor.
摘要翻译：压控振荡器通过施加在可变电容元件两端的电压来控制振荡频率。压控振荡器具有频率控制偏置电路，其根据控制电压向可变电容元件的第一端施加用于频率控制的电压，根据控制电压产生第一电流的第一电流源，第二电流源，其独立于控制电压产生根据温度的第二电流;转换电阻，其将通过将第一和第二电流加在一起而获得的电流转换成电压;以及温度补偿偏置电路，其适用于可变电容元件的第二端根据由转换电阻产生的电压进行温度补偿的电压。

17. 发明授权

US08461929B2 Power amplifier 有权
标题翻译：功率放大器
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。

18. 发明授权

US08354888B2 Power amplifier 有权
标题翻译：功率放大器
公开(公告)号：US08354888B2
公开(公告)日：2013-01-15
申请号：US13195051
申请日：2011-08-01
申请人： Takayuki Matsuzuka , Kazuya Yamamoto , Takao Moriwaki
发明人： Takayuki Matsuzuka , Kazuya Yamamoto , Takao Moriwaki
IPC分类号： H03F3/04
CPC分类号： H03F3/191 , H03F1/0261 , H03F1/565 , H03F3/60 , H03F2200/18 , H03F2200/318
摘要： A power amplifier includes an input matching circuit, an amplifier transistor for amplifying an input signal received through the input matching circuit, an element for varying the collector voltage of the amplifier transistor, a bias circuit for varying the idle current in the amplifier transistor, and a compensation circuit for varying capacitance of the input matching circuit to maintain the phase shift and the input reflection in the power amplifier constant when the collector voltage and the idle current are varied, to prevent a decrease in the efficiency of the power amplifier due to changes in the output power of the amplifier transistor.
摘要翻译：功率放大器包括输入匹配电路，用于放大通过输入匹配电路接收的输入信号的放大器晶体管，用于改变放大器晶体管的集电极电压的元件，用于改变放大器晶体管中的空闲电流的偏置电路，以及用于改变输入匹配电路的电容的补偿电路，以在集电极电压和空闲电流变化时保持功率放大器的相移和输入反射恒定，以防止由于变化而导致的功率放大器的效率的降低在放大晶体管的输出功率。

19. 发明授权

US07602259B2 Voltage-controlled oscillator 有权
标题翻译：压控振荡器
公开(公告)号：US07602259B2
公开(公告)日：2009-10-13
申请号：US11936142
申请日：2007-11-07
申请人： Takayuki Matsuzuka , Kazuya Yamamoto
发明人： Takayuki Matsuzuka , Kazuya Yamamoto
IPC分类号： H03L1/00
CPC分类号： H03L1/023 , H03B5/04 , H03B5/1203 , H03B5/1231 , H03B5/124
摘要： A voltage-controlled oscillator has an oscillation frequency controlled through a voltage applied across ends of a variable-capacitance element. The voltage-controlled oscillator has a frequency control bias circuit which applies to a first end of the variable-capacitance element a voltage for frequency control according to a control voltage, a first current source which generates a first current according to the control voltage, a second current source which generates a second current according to temperature, independent of the control voltage, a converting resistor which converts a current, obtained by adding together the first and second currents, into a voltage, and a temperature compensation bias circuit which applies to the second end of the variable-capacitance element a voltage for temperature compensation according to the voltage produced by the converting resistor.
摘要翻译：压控振荡器通过施加在可变电容元件两端的电压来控制振荡频率。压控振荡器具有频率控制偏置电路，其根据控制电压向可变电容元件的第一端施加用于频率控制的电压，根据控制电压产生第一电流的第一电流源，第二电流源，其独立于控制电压产生根据温度的第二电流;转换电阻，其将通过将第一和第二电流加在一起而获得的电流转换成电压;以及温度补偿偏置电路，其适用于可变电容元件的第二端根据由转换电阻产生的电压进行温度补偿的电压。

20. 发明申请

US20090174474A1 POWER AMPLIFIER 有权
标题翻译：功率放大器
公开(公告)号：US20090174474A1
公开(公告)日：2009-07-09
申请号：US12098538
申请日：2008-04-07
申请人： Takayuki Matsuzuka , Kazuya Yamamoto
发明人： Takayuki Matsuzuka , Kazuya Yamamoto
IPC分类号： H03F1/14
CPC分类号： H03F3/245 , H03F1/0261 , H03F1/302 , H03F1/303 , H03F3/19 , H03F2200/165 , H03F2200/168 , H03F2200/171 , H03F2200/18 , H03F2200/411 , H03F2200/451
摘要： An amplifier element amplifies RF signals. An emitter follower unit drives the amplifier element at a constant voltage corresponding to a reference voltage supplied to a reference terminal from outside. A current injection unit drives the amplifier element a constant current corresponding to the reference voltage. An analog control unit analogically controls the output voltage of the emitter follower unit in correspondence with the control voltage supplied to a control terminal from outside. A mode switching unit switches whether the emitter follower unit is operated or not in correspondence with the control voltage.
摘要翻译：放大器元件放大RF信号。射极跟随器单元以与从外部提供给参考端子的参考电压相对应的恒定电压来驱动放大器元件。电流注入单元驱动放大器元件与参考电压相对应的恒定电流。模拟控制单元对应于从外部提供给控制端子的控制电压模拟地控制发射极跟随器单元的输出电压。模式切换单元根据控制电压来切换射极跟随器单元是否工作。

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