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    • 2. 发明申请
    • SEMICONDUCTOR DEVICE
    • 半导体器件
    • US20110316062A1
    • 2011-12-29
    • US13151306
    • 2011-06-02
    • Masao KONDOMasatoshi MORIKAWASatoshi GOTO
    • Masao KONDOMasatoshi MORIKAWASatoshi GOTO
    • H01L29/94
    • H01L29/93H04B1/48
    • In terms of achieving a reduction in the cost of an antenna switch, there is provided a technology capable of minimizing harmonic distortion generated in the antenna switch even when the antenna switch is particularly formed of field effect transistors formed over a silicon substrate. Between the source region and the drain region of each of a plurality of MISFETs coupled in series, a distortion compensating capacitance circuit is coupled which has a voltage dependency such that, in either of the cases where a positive voltage is applied to the drain region based on the potential of the source region and where a negative voltage is applied to the drain region based on the potential of the source region, the capacitance decreases to a value smaller than that in a state where the potential of the source region and the potential of the drain region are at the same level.
    • 在实现天线开关的成本降低方面,提供了一种能够最小化在天线开关中产生的谐波失真的技术,即使天线开关特别地由形成在硅衬底上的场效应晶体管形成。 在串联耦合的多个MISFET的源极区域和漏极区域之间,耦合失真补偿电容电路,其具有电压依赖性,使得在基于漏极区域施加正电压的情况下, 基于源极区域的电位,并且基于源极区域的电位将负电压施加到漏极区域,电容降低到比源极区域的电位和电位区域的电位小的值 漏极区域处于相同的电平。
    • 6. 发明申请
    • SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 半导体集成电路设备
    • US20130002338A1
    • 2013-01-03
    • US13606756
    • 2012-09-07
    • Masao KONDOSatoshi GOTOMasatoshi MORIKAWA
    • Masao KONDOSatoshi GOTOMasatoshi MORIKAWA
    • H03K17/56H01L29/92
    • H01L27/0207H01L27/1203H01L28/86H01L29/94H04B1/48
    • SOI MOSFETs are used for the transistors for switching of an antenna switch and yet harmonic distortion is significantly reduced. Capacitance elements are respectively added to either the respective drains or gates of the transistors comprising the through MOSFET group of reception branch of the antenna switch. This makes the voltage amplitude between source and gate and that between drain and gate different from each other. As a result, the voltage dependence of source-drain parasitic capacitance becomes asymmetric with respect to the polarity of voltage. This asymmetry property produces signal distortion having similar asymmetry property. Therefore, the following can be implemented by setting it so that it has the same amplitude as that of second-harmonic waves arising from the voltage dependence of substrate capacitance and a phase opposite to that of the same: second-order harmonic distortion can be canceled out and thus second-order harmonic distortion can be reduced.
    • SOI MOSFET用于切换天线开关的晶体管,但谐波失真明显减少。 电容元件分别添加到包括天线开关的接收支路的通过MOSFET组的晶体管的相应的漏极或栅极。 这使得源极和栅极之间的电压幅度以及漏极和栅极之间的电压幅度彼此不同。 结果,源极 - 漏极寄生电容的电压相对于电压的极性变得不对称。 该不对称性产生具有相似不对称性质的信号失真。 因此,可以通过将其设置为与基板电容的电压依赖性相反的二次谐波的振幅和与其相反的相位的振幅相同的幅度来实现以下:可以取消二阶谐波失真 从而可以减少二次谐波失真。
    • 8. 发明申请
    • HIGH-FREQUENCY POWER AMPLIFYING DEVICE
    • 高频功率放大器件
    • US20130057343A1
    • 2013-03-07
    • US13557643
    • 2012-07-25
    • Masao KONDO
    • Masao KONDO
    • H03F3/45H03F3/68
    • H03F1/0277H03F3/211H03F3/245H03F3/72H03F2200/537H03F2200/541
    • The present invention provides a high-frequency power amplifying device capable of transmitting output power at high efficiency. For example, a high-frequency power amplifying device has first and second differential amplifiers and a transformer for matching output impedances of the differential amplifiers. Between differential output nodes of the first differential amplifier, an inductor, a switch, and an inductor are coupled in series. When the second differential amplifier is in an operating state and the first differential amplifier is in a non-operating state, the switch is controlled to be on. In this case, due to “off capacitance” in transistors of a differential pair included in the first differential amplifier, impedance on the first differential amplifier side seen from both ends of primary coils becomes a high impedance state (parallel resonance state) and, equivalently, the primary coils do not exert influence on the operation of the second differential amplifier.
    • 本发明提供能够高效率地发送输出功率的高频功率放大装置。 例如,高频功率放大装置具有第一和第二差分放大器和用于匹配差分放大器的输出阻抗的变压器。 在第一差分放大器的差分输出节点之间,电感器,开关和电感器串联耦合。 当第二差分放大器处于工作状态并且第一差分放大器处于非工作状态时,开关被控制为接通。 在这种情况下,由于包含在第一差分放大器中的差动对的晶体管中的关断电容,从初级线圈的两端看到的第一差分放大器侧的阻抗成为高阻抗状态(并联谐振状态),相当于 初级线圈不会对第二差分放大器的工作产生影响。
    • 10. 发明申请
    • SEMICONDUCTOR INTEGRATED CIRCUIT DEVICE
    • 半导体集成电路设备
    • US20110001543A1
    • 2011-01-06
    • US12813852
    • 2010-06-11
    • Masao KONDOSatoshi GOTOMasatoshi MORIKAWA
    • Masao KONDOSatoshi GOTOMasatoshi MORIKAWA
    • H03K17/56H01L27/12
    • H01L27/0207H01L27/1203H01L28/86H01L29/94H04B1/48
    • SOI MOSFETs are used for the transistors for switching of an antenna switch and yet harmonic distortion is significantly reduced. Capacitance elements are respectively added to either the respective drains or gates of the transistors comprising the through MOSFET group of reception branch of the antenna switch. This makes the voltage amplitude between source and gate and that between drain and gate different from each other. As a result, the voltage dependence of source-drain parasitic capacitance becomes asymmetric with respect to the polarity of voltage. This asymmetry property produces signal distortion having similar asymmetry property. Therefore, the following can be implemented by setting it so that it has the same amplitude as that of second-harmonic waves arising from the voltage dependence of substrate capacitance and a phase opposite to that of the same: second-order harmonic distortion can be canceled out and thus second-order harmonic distortion can be reduced.
    • SOI MOSFET用于切换天线开关的晶体管,但谐波失真明显减少。 电容元件分别添加到包括天线开关的接收支路的通过MOSFET组的晶体管的相应的漏极或栅极。 这使得源极和栅极之间以及漏极和栅极之间的电压幅度彼此不同。 结果,源极 - 漏极寄生电容的电压相对于电压的极性变得不对称。 该不对称性产生具有相似不对称性质的信号失真。 因此,可以通过将其设置为与基板电容的电压依赖性相反的二次谐波的振幅和与其相反的相位的振幅相同的幅度来实现以下:可以取消二阶谐波失真 从而可以减少二次谐波失真。