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    • 23. 发明申请
    • POWER AMPLIFIER
    • 功率放大器
    • US20130207729A1
    • 2013-08-15
    • US13611844
    • 2012-09-12
    • Atsushi OkamuraTakayuki Matsuzuka
    • Atsushi OkamuraTakayuki Matsuzuka
    • H03F3/21
    • H03F1/0261H03F1/302H03F1/56H03F3/602H03F2200/18H03F2200/411
    • A power amplifier includes: an amplifier having a base into which input signals are input, a collector to which a collector voltage is supplied, and an emitter; and a bias circuit for supplying a bias current to the base of the amplifier. The bias circuit includes a first transistor having a first control terminal into which a reference voltage is input, a first terminal to which a power voltage is applied, and a second terminal connected to the base of the amplifier. A capacitance adjusting circuit elevates capacitance between a grounding point and at least one of the first control terminal and the first terminal when the collector voltage of the amplifier is lowered.
    • 功率放大器包括:具有输入信号的基极的放大器,提供集电极电压的集电极和发射极; 以及用于向放大器的基极提供偏置电流的偏置电路。 偏置电路包括具有输入基准电压的第一控制端子的第一晶体管,施加电源电压的第一端子和连接到放大器的基极的第二端子。 当放大器的集电极电压降低时,电容调整电路提高接地点与第一控制端子和第一端子中的至少一个之间的电容。
    • 24. 发明授权
    • Power amplifier
    • 功率放大器
    • US08659352B2
    • 2014-02-25
    • US13601038
    • 2012-08-31
    • Takayuki MatsuzukaKazuhiro Iyomasa
    • Takayuki MatsuzukaKazuhiro Iyomasa
    • H03F1/14H03F3/68
    • H03F1/0261H03F1/0277H03F3/211H03F3/602H03F3/72H03F2200/18H03F2203/7231H03F2203/7236
    • A power amplifier includes: a first amplifying element amplifying an input signal; a second amplifying element amplifying an output signal of the first amplifying element; a third amplifying element amplifying the input signal; a first switch connected between an output of the first amplifying element and an input of second amplifying element; a second switch connected between an output of the first amplifying element and an output of the third amplifying element; a third switch connected between an output of the first amplifying element and an output of the second amplifying element; a reference voltage generating a circuit generating reference voltage; a bias circuit supplying a bias current, based on the reference voltage, to inputs of the first, second, and third amplifying elements; and a control circuit controlling the first, second and third switches and the reference voltage generating circuit.
    • 功率放大器包括:放大输入信号的第一放大元件; 放大第一放大元件的输出信号的第二放大元件; 放大所述输入信号的第三放大元件; 第一开关,连接在第一放大元件的输出端和第二放大元件的输入端之间; 第二开关,连接在第一放大元件的输出端和第三放大元件的输出端之间; 连接在第一放大元件的输出端和第二放大元件的输出端之间的第三开关; 产生电路产生参考电压的参考电压; 偏置电路,基于所述参考电压向所述第一,第二和第三放大元件的输入端提供偏置电流; 以及控制电路,控制第一,第二和第三开关和参考电压产生电路。
    • 25. 发明授权
    • Voltage-controlled oscillator
    • 压控振荡器
    • US07397318B2
    • 2008-07-08
    • US11563757
    • 2006-11-28
    • Takayuki Matsuzuka
    • Takayuki Matsuzuka
    • H03B5/12H03L1/02
    • H03L1/023H03B5/04H03B5/1841
    • A voltage-controlled oscillator including a voltage-controlled oscillation section, a frequency control bias circuit, a temperature compensation bias circuit, and a temperature compensation bias generation circuit. The temperature compensation bias generation circuit has a transistor having its collector or drain connected to the temperature compensation bias circuit, a first resistor having one end connected to the collector or drain of the transistor and having another end that is grounded, a second resistor having one end connected to the base or gate of the transistor, a base or gate bias application terminal connected to another end of the second resistor, a third resistor having one end connected to the emitter or source of the transistor, and an emitter or source bias application terminal connected to another end of the third resistor.
    • 包括压控振荡部分,频率控制偏置电路,温度补偿偏置电路和温度补偿偏置产生电路的压控振荡器。 温度补偿偏置产生电路具有其集电极或漏极连接到温度补偿偏置电路的晶体管,第一电阻器的一端连接到晶体管的集电极或漏极,另一端接地,第二电阻器具有一个 连接到晶体管的基极或栅极,连接到第二电阻器的另一端的基极或栅极施加端子,具有连接到晶体管的发射极或源极的一端的第三电阻器,以及发射极或源偏压应用 端子连接到第三电阻器的另一端。
    • 26. 发明授权
    • Power amplifier
    • 功率放大器
    • US08917144B2
    • 2014-12-23
    • US13832999
    • 2013-03-15
    • Kazuhiro IyomasaTakayuki Matsuzuka
    • Kazuhiro IyomasaTakayuki Matsuzuka
    • H03G3/10H03F3/21H03F1/02H03F3/24H03F3/60
    • H03F3/21H03F1/0261H03F3/245H03F3/60H03F2200/18H03F2200/411
    • A power amplifier includes: an amplification element amplifying an input signal; and a bias circuit supplying a bias current to an input of the amplification element. The bias circuit includes a reference voltage terminal to which a battery voltage is applied from a battery, a first resistor having a first end connected to the reference voltage terminal, a second resistor connected between a second end of the first resistor and ground, and a first transistor. The first transistor has a control terminal connected to a connection point between the first resistor and the second resistor, a first terminal connected to a power supply, and a second terminal connected to the input of the amplification element. The first and second resistors are the same material.
    • 功率放大器包括:放大输入信号的放大元件; 以及向放大元件的输入端提供偏置电流的偏置电路。 偏置电路包括从电池施加电池电压的参考电压端子,具有连接到参考电压端子的第一端的第一电阻器,连接在第一电阻器的第二端和地之间的第二电阻器和 第一晶体管。 第一晶体管具有连接到第一电阻器和第二电阻器之间的连接点的控制端子,连接到电源的第一端子和连接到放大元件的输入端的第二端子。 第一和第二电阻是相同的材料。
    • 27. 发明授权
    • Power amplifier
    • 功率放大器
    • US08686795B2
    • 2014-04-01
    • US13611844
    • 2012-09-12
    • Atsushi OkamuraTakayuki Matsuzuka
    • Atsushi OkamuraTakayuki Matsuzuka
    • H03F3/04
    • H03F1/0261H03F1/302H03F1/56H03F3/602H03F2200/18H03F2200/411
    • A power amplifier includes: an amplifier having a base into which input signals are input, a collector to which a collector voltage is supplied, and an emitter; and a bias circuit for supplying a bias current to the base of the amplifier. The bias circuit includes a first transistor having a first control terminal into which a reference voltage is input, a first terminal to which a power voltage is applied, and a second terminal connected to the base of the amplifier. A capacitance adjusting circuit elevates capacitance between a grounding point and at least one of the first control terminal and the first terminal when the collector voltage of the amplifier is lowered.
    • 功率放大器包括:具有输入信号的基极的放大器,提供集电极电压的集电极和发射极; 以及用于向放大器的基极提供偏置电流的偏置电路。 偏置电路包括具有输入基准电压的第一控制端子的第一晶体管,施加电源电压的第一端子和连接到放大器的基极的第二端子。 当放大器的集电极电压降低时,电容调整电路提高接地点与第一控制端子和第一端子中的至少一个之间的电容。
    • 29. 发明申请
    • POWER AMPLIFIER
    • 功率放大器
    • US20130241659A1
    • 2013-09-19
    • US13601038
    • 2012-08-31
    • Takayuki MatsuzukaKazuhiro Iyomasa
    • Takayuki MatsuzukaKazuhiro Iyomasa
    • H03F3/21
    • H03F1/0261H03F1/0277H03F3/211H03F3/602H03F3/72H03F2200/18H03F2203/7231H03F2203/7236
    • A power amplifier includes: a first amplifying element amplifying an input signal; a second amplifying element amplifying an output signal of the first amplifying element; a third amplifying element amplifying the input signal; a first switch connected between an output of the first amplifying element and an input of second amplifying element; a second switch connected between an output of the first amplifying element and an output of the third amplifying element; a third switch connected between an output of the first amplifying element and an output of the second amplifying element; a reference voltage generating a circuit generating reference voltage; a bias circuit supplying a bias current, based on the reference voltage, to inputs of the first, second, and third amplifying elements; and a control circuit controlling the first, second and third switches and the reference voltage generating circuit.
    • 功率放大器包括:放大输入信号的第一放大元件; 放大第一放大元件的输出信号的第二放大元件; 放大所述输入信号的第三放大元件; 第一开关,连接在第一放大元件的输出端和第二放大元件的输入端之间; 第二开关,连接在第一放大元件的输出端和第三放大元件的输出端之间; 连接在第一放大元件的输出端和第二放大元件的输出端之间的第三开关; 产生电路产生参考电压的参考电压; 偏置电路,基于所述参考电压向所述第一,第二和第三放大元件的输入端提供偏置电流; 以及控制电路,控制第一,第二和第三开关和参考电压产生电路。
    • 30. 发明授权
    • Compact high-frequency circuit device
    • 紧凑型高频电路装置
    • US06535090B1
    • 2003-03-18
    • US09714287
    • 2000-11-17
    • Takayuki MatsuzukaTakayuki Katoh
    • Takayuki MatsuzukaTakayuki Katoh
    • H01P308
    • H01P5/187H01L2224/48091H01L2224/48227H01L2924/1423H01L2924/3011H01L2924/00014H01L2924/00
    • A compact high-frequency circuit device including a signal distribution circuit and a signal combining circuit. The high-frequency circuit device has a multilayer circuit, and the multilayer circuit includes a first conductor for transmitting a signal; a first dielectric layer in which the first conductor is embedded; a first ground conductor layer on one surface of the first dielectric layer and having a first opening; a second ground conductor layer on the other surface of the first dielectric layer and having another first opening, the first openings of the first and second ground conductor layers being mutually opposed; second dielectric layers, one being provided on the surface of the first ground conductor layer, and the other on the surface of the second ground conductors layer; and a pair of second conductors for transferring a signal, one being provided on the surface of one of the dielectric layers and the other on the surface of the other second dielectric layer, portions of the second conductors being mutually opposed at the first openings.
    • 一种紧凑型高频电路装置,包括信号分配电路和信号组合电路。 高频电路器件具有多层电路,多层电路包括用于发送信号的第一导体; 第一电介质层,其中第一导体被嵌入其中; 第一接地导体层,在第一电介质层的一个表面上并具有第一开口; 在第一介电层的另一个表面上的第二接地导体层,并具有另一个第一开口,第一和第二接地导体层的第一开口相互相对; 第二电介质层,一个设置在第一接地导体层的表面上,另一个设置在第二接地导体层的表面上; 以及用于传送信号的一对第二导体,一个设置在一个电介质层的表面上,另一个设置在另一个第二介电层的表面上,第二导体的部分在第一开口处相互对置。