Active load circuit for low-voltage CMOS voltage gain amplifier with wide bandwidth and high gain characteristic
    1.
    发明授权
    Active load circuit for low-voltage CMOS voltage gain amplifier with wide bandwidth and high gain characteristic 失效
    用于具有宽带宽和高增益特性的低压CMOS电压增益放大器的有源负载电路

    公开(公告)号:US07193468B2

    公开(公告)日:2007-03-20

    申请号:US10846082

    申请日:2004-05-14

    IPC分类号: H03F3/45

    摘要: Provided is an active load circuit of a voltage gain amplifier, which allows a high voltage gain with a low supply voltage operation in high-frequency range. The active load circuit includes a PMOS transistor which is connected between the amplifying unit and a power supply voltage and functions as a load element in a low frequency range; a negative feedback buffering unit which is connected to the gate of the PMOS transistor and functions as a common drain amplifier to stabilize the output voltage of the voltage gain amplifier and drive the voltage gain amplifier at a low voltage; and a capacitor which is connected to the negative feedback buffering unit and compensates for both an impedance and a frequency characteristics when the voltage gain amplifier operates in a high frequency range.

    摘要翻译: 提供了一种电压增益放大器的有源负载电路,其允许在高频范围内具有低电源电压操作的高电压增益。 有源负载电路包括连接在放大单元和电源电压之间并用作低频范围内的负载元件的PMOS晶体管; 负反馈缓冲单元,其连接到PMOS晶体管的栅极并用作公共漏极放大器,以稳定电压增益放大器的输出电压并以低电压驱动电压增益放大器; 以及电容器,其连接到负反馈缓冲单元,并且当电压增益放大器在高频范围内工作时,补偿阻抗和频率特性两者。

    CMOS exponential function generating circuit with temperature compensation technique
    2.
    发明授权
    CMOS exponential function generating circuit with temperature compensation technique 失效
    具有温度补偿技术的CMOS指数函数发生电路

    公开(公告)号:US07180358B2

    公开(公告)日:2007-02-20

    申请号:US11004432

    申请日:2004-12-03

    IPC分类号: G06G7/20

    摘要: Provided is a CMOS exponential function generating circuit capable of compensating for the exponential function characteristic according to temperature variations. The exponential function generating circuit includes an voltage scaler scaling the value of an external gain control voltage signal, an exponential function generating unit generating exponential function current and voltage in response to a signal output from the voltage scaler, a reference voltage generator providing a reference voltage to the exponential function generating unit, and a temperature compensator compensating for the exponential function characteristic according to temperature variations.

    摘要翻译: 提供了能够根据温度变化补偿指数函数特性的CMOS指数函数发生电路。 指数函数发生电路包括缩放外部增益控制电压信号的值的电压缩放器,响应于从电压调节器输出的信号产生指数函数电流和电压的指数函数产生单元,提供参考电压的参考电压发生器 到指数函数产生单元,以及根据温度变化补偿指数函数特性的温度补偿器。

    Variable gain amplifier
    3.
    发明授权
    Variable gain amplifier 失效
    可变增益放大器

    公开(公告)号:US07199660B2

    公开(公告)日:2007-04-03

    申请号:US10730832

    申请日:2003-12-08

    IPC分类号: H03F3/45

    CPC分类号: H03F3/45179 H03G1/0023

    摘要: Disclosed is a CMOS variable gain amplifier (VGA). The variable gain amplifier comprises a voltage-current converter for converting voltages of a wide input range into currents, a current shared circuit for receiving the currents from the voltage-current converter and controlling values of output currents depending on first and second control voltages, and a current-voltage converter for converting the output currents from the current shared circuit into differential voltages depending on a bias voltage in order to obtain a variable gain. The voltage amplifier having a variable gain is provided by controlling the value of the output current of the drain terminal against the gate voltage of the NMOS transistor constituting the current shared circuit. Therefore, an integrated circuit (IC) type variable gain amplifier operating a high speed at a low supply voltage can be obtained.

    摘要翻译: 公开了一种CMOS可变增益放大器(VGA)。 可变增益放大器包括用于将宽输入范围的电压转换为电流的电压 - 电流转换器,用于接收来自电压 - 电流转换器的电流的电流共享电路,以及根据第一和第二控制电压控制输出电流的值;以及 电流 - 电压转换器,用于根据偏置电压将来自当前共享电路的输出电流转换成差分电压,以获得可变增益。 具有可变增益的电压放大器是通过根据构成当前共享电路的NMOS晶体管的栅极电压控制漏极端子的输出电流的值来提供的。 因此,可以获得在低电源电压下高速运行的集成电路(IC)型可变增益放大器。

    Variable gain amplifier
    4.
    发明授权
    Variable gain amplifier 失效
    可变增益放大器

    公开(公告)号:US06989716B2

    公开(公告)日:2006-01-24

    申请号:US10732720

    申请日:2003-12-09

    IPC分类号: H03F3/45

    CPC分类号: H03G1/0023 H03F3/4508

    摘要: Disclosed is a variable gain amplifier having low voltage, low distortion, high linearity and wideband operating characteristics. The variable gain amplifier comprises an input signal provision and variable gain controller for receiving first and second input signals via a differential pair of a cascode shape and amplifying a difference signal of the first and second input signals to output first and second differential signals, wherein the controller controls a variable voltage gain of the difference signal according to a gain control voltage signal, and a current/voltage converter for receiving the first and second differential signals outputted from the input signal provision and variable gain controller and converting the first and second differential signals into first and second output voltages of a voltage inputted type depending on first and second bias voltages, wherein the input signal provision and variable gain controller has a construction of a current inputted type or a voltage inputted type along with negative feedback connection.

    摘要翻译: 公开了具有低电压,低失真,高线性度和宽带工作特性的可变增益放大器。 可变增益放大器包括输入信号提供和可变增益控制器,用于通过级联形状的差分对接收第一和第二输入信号,并且放大第一和第二输入信号的差分信号以输出第一和第二差分信号,其中, 控制器根据增益控制电压信号控制差分信号的可变电压增益;以及电流/电压转换器,用于接收从输入信号提供和可变增益控制器输出的第一和第二差分信号,并将第一和第二差分信号 根据第一和第二偏置电压,输入电压输入型的第一和第二输出电压,其中输入信号提供和可变增益控制器具有电流输入类型或电压输入类型以及负反馈连接的结构。

    Variable gain amplifier
    5.
    发明授权
    Variable gain amplifier 失效
    可变增益放大器

    公开(公告)号:US07046089B2

    公开(公告)日:2006-05-16

    申请号:US10731610

    申请日:2003-12-08

    IPC分类号: H03F3/45

    摘要: Disclosed is a CMOS variable gain amplifier. The variable gain amplifier comprises a first means for first and second differential input voltages, a second means for controlling its transconductance to generate an output current according to a control voltage, a third means for a bias voltage to generate bias current by current mirror, and to supply a stabilized bias current to the second means using the replica current, and a fourth means for generating an output voltage with a variable gain according to control voltage by its output current generated in the second means. Therefore, the present invention provides a function of controlling low distortion and high linearity in low voltage and a high-speed operation by the supply of a stabilized sharing current bias, and can control a voltage gain in a wide range by the control voltage.

    摘要翻译: 公开了一种CMOS可变增益放大器。 可变增益放大器包括用于第一和第二差分输入电压的第一装置,用于根据控制电压控制其跨导以产生输出电流的第二装置,用于由电流镜产生偏置电流的偏置电压的第三装置,以及 使用复制电流向第二装置提供稳定的偏置电流;以及第四装置,用于根据控制电压通过其在第二装置中产生的输出电流产生具有可变增益的输出电压。 因此,本发明提供了通过提供稳定的共享电流偏压来控制低电压和高速操作的低失真和高线性度的功能,并且可以通过控制电压来控制宽范围内的电压增益。

    Digital radio frequency (RF) receiver
    6.
    发明授权
    Digital radio frequency (RF) receiver 有权
    数字射频(RF)接收机

    公开(公告)号:US09294135B2

    公开(公告)日:2016-03-22

    申请号:US13609638

    申请日:2012-09-11

    IPC分类号: H04B1/00

    CPC分类号: H04B1/0021

    摘要: A digital RF receiver does not use a separate receiver according to a mode and a band for multi-mode reception, MIMO reception, and bandwidth extension reception, and changes only setting variables in a single receiver structure so as to implement multi-mode reception, MIMO reception, bandwidth extension reception, and/or simultaneous multi-mode operation, such that complexity of the receiver, development cost, and power consumption can be reduced.

    摘要翻译: 数字RF接收机根据用于多模式接收,MIMO接收和带宽扩展接收的模式和频带不使用单独的接收机,并且仅改变单个接收机结构中的设置变量以便实现多模式接收, MIMO接收,带宽扩展接收和/或同时多模式操作,从而可以减少接收机的复杂性,开发成本和功耗。

    Apparatus and method for I/Q mismatch calibration
    7.
    发明授权
    Apparatus and method for I/Q mismatch calibration 有权
    用于I / Q不匹配校准的装置和方法

    公开(公告)号:US08295405B2

    公开(公告)日:2012-10-23

    申请号:US12629018

    申请日:2009-12-01

    IPC分类号: H04L27/22

    CPC分类号: H04L27/3863

    摘要: There is provided an apparatus and method for In-phase/Quadrature-phase (I/Q) mismatch calibration. The apparatus includes: a symmetrical point extracting part receiving continuous wave signals and extracting an I/Q channel average locus of the continuous wave signals; an error extracting part extracting a degree of distortion of the continuous wave signals from the extracted I/Q channel average locus; and a calibrating part calibrating a mismatch between I-channel signals and Q-channel signals of the continuous wave signals using the degree of distortion of the continuous wave signals.

    摘要翻译: 提供了用于同相/正交相(I / Q)不匹配校准的装置和方法。 该装置包括:对称点提取部分,接收连续波信号并提取连续波信号的I / Q信道平均轨迹; 从所提取的I / Q通道平均轨迹提取连续波信号的失真程度的误差提取部分; 以及使用连续波信号的失真程度来校准连续波信号的I信道信号和Q信道信号之间的失配的校准部分。

    Multi-metal coplanar waveguide
    8.
    发明授权
    Multi-metal coplanar waveguide 有权
    多金属共面波导

    公开(公告)号:US07626476B2

    公开(公告)日:2009-12-01

    申请号:US11690219

    申请日:2007-03-23

    IPC分类号: H01P3/08

    CPC分类号: H01P3/003

    摘要: A coplanar waveguide CPW using multi-layer interconnection CMOS technology is provided. In the CPW including an interlayer insulator disposed on a substrate, metal multilayers disposed on the interlayer insulator, and a ground line-a signal line-a ground line formed of an uppermost metal layer, when a ground line of a lowermost layer is connected to the ground line of the uppermost layer, intermediate metal layers are designed to gradually increase or decrease in width, or to be uneven so as to maximize an area where an ultra-high frequency spreads, thereby minimizing CPW loss and maximizing a slow wave effect. As a result, it is possible to improve performance of an ultra-high frequency circuit and miniaturize the circuit.

    摘要翻译: 提供了一种使用多层互连CMOS技术的共面波导CPW。 在包括设置在基板上的层间绝缘体的CPW中,设置在层间绝缘体上的金属多层和最下层的接地线的接地线 - 信号线 - 由最上层金属层形成的接地线连接到 最上层的地线,中间金属层被设计成逐渐增加或减小宽度或不均匀,以便使超高频率扩展的面积最大化,由此最小化CPW损耗并最大化慢波效应。 结果,可以提高超高频电路的性能并使电路小型化。

    High voltage driving circuit reducing a transient current
    9.
    发明授权
    High voltage driving circuit reducing a transient current 有权
    高压驱动电路减少瞬态电流

    公开(公告)号:US06043970A

    公开(公告)日:2000-03-28

    申请号:US136611

    申请日:1998-08-20

    IPC分类号: G09G3/28 H03K19/003 H02H3/00

    摘要: The present invention relates to a high voltage driving circuit for preventing an transient current. The high voltage driving circuit including a non-overlap signal generator for generating the first and second non-overlap signals in response to the logic level signal, a satge for generating a first driving signal in response to the logic level signal and the first and second non-overlap signals, a pre-driving circuit which is driven in response to the first non-overlap signal and the first driving signal, and a complementary output circuit for controlling a current flowing toward the output terminal in response to the output signal of the pre-driving circuit and the second non-overlap signal.

    摘要翻译: 本发明涉及一种用于防止瞬态电流的高压驱动电路。 高电压驱动电路包括:非重叠信号发生器,用于响应于逻辑电平信号产生第一和第二非重叠信号;响应于逻辑电平信号产生第一驱动信号的第一和第二 非重叠信号,响应于第一非重叠信号和第一驱动信号而被驱动的预驱动电路,以及互补输出电路,用于响应于输出端的输出信号控制流向输出端的电流 预驱动电路和第二非重叠信号。

    PROGRAMMABLE COMPLEX MIXER
    10.
    发明申请
    PROGRAMMABLE COMPLEX MIXER 审中-公开
    可编程复合混合器

    公开(公告)号:US20130063199A1

    公开(公告)日:2013-03-14

    申请号:US13615423

    申请日:2012-09-13

    IPC分类号: G06G7/14

    CPC分类号: H03D7/165

    摘要: Disclosed is a programmable complex mixer. In accordance with the embodiments of the present invention, it is possible to control an output by programming paths and signs of internal signals in a complex mixer to reduce a processing bandwidth, power consumption, and a chip area in a transceiver, thereby improving performance of a transceiver.

    摘要翻译: 公开了一种可编程复合混合器。 根据本发明的实施例,可以通过在复合混频器中编程内部信号的路径和符号来控制输出,以减少收发器中的处理带宽,功耗和芯片面积,从而提高 收发器