Transistor and method of fabricating the same
    3.
    发明授权
    Transistor and method of fabricating the same 有权
    晶体管及其制造方法

    公开(公告)号:US08901608B2

    公开(公告)日:2014-12-02

    申请号:US13908076

    申请日:2013-06-03

    摘要: A high electron mobility transistor includes a T-type gate electrode disposed on a substrate between source and drain electrodes and insulating layers disposed between the substrate and the T-type gate electrode. The insulating layers include first, second, and third insulating layers. The third insulating layer is disposed between the substrate and a head portion of the T-type gate electrode such that a portion of the third insulating layer is in contact with a foot portion of the T-type gate electrode. The second insulating layer is disposed between the substrate and the head portion of the T-type gate electrode to be in contact with the third insulating layer. The first insulating layer and another portion of the third insulating layer are sequentially stacked between the substrate and the head portion of the T-type gate electrode to be in contact with the second insulating layer.

    摘要翻译: 高电子迁移率晶体管包括设置在源极和漏极之间的衬底上的T型栅电极和设置在衬底和T型栅电极之间的绝缘层。 绝缘层包括第一绝缘层,第二绝缘层和第三绝缘层。 第三绝缘层设置在基板和T型栅电极的头部之间,使得第三绝缘层的一部分与T型栅极的脚部接触。 第二绝缘层设置在基板与T型栅电极的头部之间以与第三绝缘层接触。 所述第一绝缘层和所述第三绝缘层的另一部分依次层叠在所述基板与所述T型栅电极的头部之间,以与所述第二绝缘层接触。

    Microwave amplification circuit
    4.
    发明授权

    公开(公告)号:US11223333B2

    公开(公告)日:2022-01-11

    申请号:US16941691

    申请日:2020-07-29

    IPC分类号: H03F1/56 H03F3/19 H03G3/30

    摘要: Provided is an amplification circuit for amplifying an input signal. The amplification circuit includes an input stage including an input matching circuit that receives the input signal and an input attenuation circuit that attenuates a gain for the input signal outside an operating frequency band of the amplification circuit, a transistor that amplifies the input signal provided from the input stage, and an output stage including an output matching circuit that receives a signal amplified by the transistor and an output attenuation circuit that attenuates the gain for the input signal outside the operating frequency band of the amplification circuit, and the input attenuation circuit includes a first resistor and a second resistor that are connected to a ground voltage, a first passive element connected between the input matching circuit and the second resistor, and a second passive element connected between the first passive element and the first resistor.

    Automatic gain control feedback amplifier
    6.
    发明授权
    Automatic gain control feedback amplifier 有权
    自动增益控制反馈放大器

    公开(公告)号:US08841969B2

    公开(公告)日:2014-09-23

    申请号:US13670016

    申请日:2012-11-06

    IPC分类号: H03G3/12

    摘要: Disclosed is an automatic gain control feedback amplifier that can arbitrarily control a gain even when a difference in input signal is large. The automatic gain control feedback amplifier includes: an amplification circuit unit configured to amplify voltage input from an input terminal and output the amplified voltage to an output terminal; a feedback circuit unit connected between the input terminal and the output terminal and including a feedback resistor unit of which a total resistance value is determined by one or more control signals and a feedback transistor connected to the feedback resistor unit in parallel; and a bias circuit unit configured to supply predetermined bias voltage to the feedback transistor.

    摘要翻译: 公开了一种自动增益控制反馈放大器,其即使当输入信号的差异大时也可以任意地控制增益。 自动增益控制反馈放大器包括:放大电路单元,被配置为放大从输入端输入的电压,并将放大的电压输出到输出端; 连接在输入端子和输出端子之间的反馈电路单元,包括反馈电阻器单元,其总电阻值由一个或多个控制信号确定,反馈晶体管并联连接到反馈电阻器单元; 以及偏置电路单元,被配置为向所述反馈晶体管提供预定的偏置电压。

    IMPEDANCE MATCHING CIRCUIT, POWER AMPLIFIER AND MANUFACTURING METHOD FOR VARIABLE CAPACITOR
    8.
    发明申请
    IMPEDANCE MATCHING CIRCUIT, POWER AMPLIFIER AND MANUFACTURING METHOD FOR VARIABLE CAPACITOR 审中-公开
    阻抗匹配电路,功率放大器和可变电容器的制造方法

    公开(公告)号:US20130207730A1

    公开(公告)日:2013-08-15

    申请号:US13743667

    申请日:2013-01-17

    IPC分类号: H03H7/38 H01G7/00 H03F3/21

    摘要: Disclosed is an impedance matching circuit capable of wideband matching. The impedance matching circuit includes: a first variable inductor unit of which one end is connected to the first node and an inductance value varies; a second inductor unit connected between the first node and a second node and having a variable inductance value; a first variable capacitor unit of which one end is connected to the first node and a capacitance value varies; and a second variable capacitor unit of which one end is connected to the second node and a capacitance value varies, and the other end of the first variable capacitor unit and the other end of the second variable capacitor unit are connected to a ground voltage terminal to perform the impedance matching between a circuit connected to the other end of the first variable inductor unit and a circuit connected to the second node.

    摘要翻译: 公开了能够进行宽带匹配的阻抗匹配电路。 阻抗匹配电路包括:第一可变电感器单元,其一端连接到第一节点,电感值变化; 连接在第一节点和第二节点之间并具有可变电感值的第二电感器单元; 第一可变电容器单元,其一端连接到第一节点,电容值变化; 以及第二可变电容器单元,其一端连接到第二节点并且电容值变化,并且第一可变电容器单元的另一端和第二可变电容器单元的另一端连接到接地电压端子 执行连接到第一可变电感器单元的另一端的电路与连接到第二节点的电路之间的阻抗匹配。