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公开(公告)号：US08618876B2
公开(公告)日：2013-12-31
申请号：US12130729
申请日：2008-05-30
IPC分类号： H03F1/14
CPC分类号： H04B1/04 , H03F1/0261 , H03F3/24 , H03F2200/321 , H03F2200/336 , H03F2200/451 , H03F2200/537
摘要： An exemplary embodiment discloses a digital control block for dynamically regulating power consumption of the transmitter; and a first driver amplifier circuit comprising a plurality of bias-modes each corresponding to a power consumption level in the transmitter, the digital control block to instruct the first driver amplifier circuit to operate in a selected bias-mode to regulate power consumption of the transmitter.
摘要翻译： 示例性实施例公开了一种用于动态调节发射机的功率消耗的数字控制块; 以及第一驱动器放大器电路，其包括多个偏置模式，每个偏置模式对应于所述发射器中的功率消耗水平，所述数字控制块指示所述第一驱动器放大器电路以选定的偏置模式操作以调节所述发射器的功率消耗 。
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公开(公告)号：US20120236958A1
公开(公告)日：2012-09-20
申请号：US12130729
申请日：2008-05-30
IPC分类号： H04L27/00
CPC分类号： H04B1/04 , H03F1/0261 , H03F3/24 , H03F2200/321 , H03F2200/336 , H03F2200/451 , H03F2200/537
摘要： An exemplary embodiment discloses a digital control block for dynamically regulating power consumption of the transmitter; and a first driver amplifier circuit comprising a plurality of bias-modes each corresponding to a power consumption level in the transmitter, the digital control block to instruct the first driver amplifier circuit to operate in a selected bias-mode to regulate power consumption of the transmitter.
摘要翻译： 示例性实施例公开了一种用于动态调节发射机的功率消耗的数字控制块; 以及第一驱动器放大器电路，其包括多个偏置模式，每个偏置模式对应于所述发射器中的功率消耗水平，所述数字控制块指示所述第一驱动器放大器电路以选定的偏置模式操作以调节所述发射器的功率消耗 。
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公开(公告)号：US07936217B2
公开(公告)日：2011-05-03
申请号：US11947570
申请日：2007-11-29
IPC分类号： H03F3/18
CPC分类号： H03F1/3205 , H03F1/0261 , H03F1/086 , H03F1/3211 , H03F1/56 , H03F3/19 , H03F3/3022 , H03F3/45179 , H03F2200/18 , H03F2200/294 , H03F2200/354 , H03F2200/451
摘要： A complementary amplifier includes an NMOS transistor coupled to a PMOS transistor in a stacked configuration. The NMOS transistor and the PMOS transistor receive and amplify an input signal. The NMOS and PMOS transistors operate as a linear complementary amplifier and provide an output signal. The NMOS and PMOS transistors may have separate bias voltages, which may be selected to overlap the low-to-high and high-to-low transitions of the transconductances of these transistors. The width and length dimensions of the NMOS and PMOS transistors may be selected to match the change in input capacitance and the change in transconductance of the NMOS transistor in moderate inversion region with the change in input capacitance and the change in transconductance of the PMOS transistor in moderate inversion region. The complementary amplifier may have an approximately constant total input capacitance and an approximately constant total transconductance over a range of voltages.
摘要翻译： 互补放大器包括以堆叠配置耦合到PMOS晶体管的NMOS晶体管。 NMOS晶体管和PMOS晶体管接收和放大输入信号。 NMOS和PMOS晶体管作为线性互补放大器工作并提供输出信号。 NMOS和PMOS晶体管可以具有单独的偏置电压，其可以被选择为与这些晶体管的跨导的低到高和高到低的跃迁重叠。 可以选择NMOS和PMOS晶体管的宽度和长度尺寸以匹配输入电容的变化和中等反转区中NMOS晶体管的跨导变化，随着输入电容的变化和PMOS晶体管的跨导变化 中等反转区。 互补放大器可以具有近似恒定的总输入电容和在一定范围的电压上的近似恒定的总跨导。
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公开(公告)号：US20090140812A1
公开(公告)日：2009-06-04
申请号：US11947570
申请日：2007-11-29
IPC分类号： H03F3/16
CPC分类号： H03F1/3205 , H03F1/0261 , H03F1/086 , H03F1/3211 , H03F1/56 , H03F3/19 , H03F3/3022 , H03F3/45179 , H03F2200/18 , H03F2200/294 , H03F2200/354 , H03F2200/451
摘要： A complementary amplifier includes an NMOS transistor coupled to a PMOS transistor in a stacked configuration. The NMOS transistor and the PMOS transistor receive and amplify an input signal. The NMOS and PMOS transistors operate as a linear complementary amplifier and provide an output signal. The NMOS and PMOS transistors may have separate bias voltages, which may be selected to overlap the low-to-high and high-to-low transitions of the transconductances of these transistors. The width and length dimensions of the NMOS and PMOS transistors may be selected to match the change in input capacitance and the change in transconductance of the NMOS transistor in moderate inversion region with the change in input capacitance and the change in transconductance of the PMOS transistor in moderate inversion region. The complementary amplifier may have an approximately constant total input capacitance and an approximately constant total transconductance over a range of voltages.
摘要翻译： 互补放大器包括以堆叠配置耦合到PMOS晶体管的NMOS晶体管。 NMOS晶体管和PMOS晶体管接收和放大输入信号。 NMOS和PMOS晶体管作为线性互补放大器工作并提供输出信号。 NMOS和PMOS晶体管可以具有单独的偏置电压，其可以被选择为与这些晶体管的跨导的低到高和高到低的跃迁重叠。 可以选择NMOS和PMOS晶体管的宽度和长度尺寸以匹配输入电容的变化和中等反转区中NMOS晶体管的跨导变化，随着输入电容的变化和PMOS晶体管的跨导变化 中等反转区。 互补放大器可以具有近似恒定的总输入电容和在一定范围的电压上的近似恒定的总跨导。
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公开(公告)号：US08095082B2
公开(公告)日：2012-01-10
申请号：US11870365
申请日：2007-10-10
CPC分类号： H04B1/0067 , H04B1/0458 , H04B1/0483
摘要： A transmitter includes a transformer and a transformer tuning circuit. The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal. The transformer tuning circuit tunes the transformer to permit the transmitter to transmit the single-ended RF signal in a first frequency band (e.g., cellular frequency band) or a second frequency band (e.g., PCS frequency band).
摘要翻译： 变送器包括变压器和变压器调谐电路。 变压器将差分射频（RF）信号转换为单端RF信号。 变压器调谐电路调谐变压器以允许发射机在第一频带（例如，蜂窝频带）或第二频带（例如，PCS频带）中发送单端RF信号。
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公开(公告)号：US20090098831A1
公开(公告)日：2009-04-16
申请号：US11870365
申请日：2007-10-10
IPC分类号： H04B1/38
CPC分类号： H04B1/0067 , H04B1/0458 , H04B1/0483
摘要： A transmitter includes a transformer and a transformer tuning circuit. The transformer transforms a differential radio frequency (RF) signal to a single-ended RF signal. The transformer tuning circuit tunes the transformer to permit the transmitter to transmit the single-ended RF signal in a first frequency band (e.g., cellular frequency band) or a second frequency band (e.g., PCS frequency band).
摘要翻译： 变送器包括变压器和变压器调谐电路。 变压器将差分射频（RF）信号转换为单端RF信号。 变压器调谐电路调谐变压器以允许发射机在第一频带（例如，蜂窝频带）或第二频带（例如，PCS频带）中发送单端RF信号。
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7.发明授权Systems and methods for reducing average current consumption in a local oscillator path 有权用于降低本地振荡器路径中的平均电流消耗的系统和方法公开(公告)号：US08791740B2
公开(公告)日：2014-07-29
申请号：US12724337
申请日：2010-03-15
IPC分类号： H03K3/289
CPC分类号： H04B1/408 , H03B19/00 , H03L7/0812 , H04B1/109
摘要： A method for reducing average current consumption in a local oscillator (LO) path is disclosed. An LO signal is received at a master frequency divider and a slave frequency divider. Output from the master frequency divider is mixed with an input signal to produce a first mixed output. Output from the slave frequency divider is mixed with the input signal to produce a second mixed output. The second mixed output is forced to be in phase with the first mixed output.
摘要翻译： 公开了一种用于降低本地振荡器（LO）路径中的平均电流消耗的方法。 在主分频器和从分频器处接收LO信号。 主分频器的输出与输入信号混合，产生第一个混合输出。 来自从分频器的输出与输入信号混合，产生第二个混合输出。 第二个混合输出被强制与第一个混合输出同相。
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公开(公告)号：US07899426B2
公开(公告)日：2011-03-01
申请号：US11936305
申请日：2007-11-07
申请人： Aleksandar Tasic , Junxiong Deng , Namsoo Kim
发明人： Aleksandar Tasic , Junxiong Deng , Namsoo Kim
摘要： In a SAW-less receiver involving a passive mixer, novel degenerative impedance elements having substantial impedances are disposed in incoming signal paths between the differential signal output leads of a low-noise amplifier (LNA) and the differential signal input leads of the passive mixer. The passive mixer outputs signals to a transimpedance amplifier and baseband filter (TIA). Providing the novel degenerative impedance elements decreases noise in the overall receiver as output from the TIA, with only minimal degradation of other receiver performance characteristics. In some examples, the passive mixer receives local oscillator signals having duty cycles of substantially less than fifty percent. In some examples, the degenerative impedance elements can have one of several impedances.
摘要翻译： 在涉及无源混频器的无SAW接收机中，具有实质阻抗的新型退化阻抗元件设置在低噪声放大器（LNA）的差分信号输出引线与无源混频器的差分信号输入引线之间的输入信号路径中。 无源混频器将信号输出到跨阻抗放大器和基带滤波器（TIA）。 提供新颖的退化阻抗元件降低了总体接收机中的噪声，作为TIA的输出，只有其他接收机性能特性的降低最小。 在一些示例中，无源混频器接收具有基本上小于百分之五十的占空比的本地振荡器信号。 在一些示例中，退化阻抗元件可以具有几个阻抗之一。
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9.发明申请METHOD AND APPARATUS FOR REDUCING INTERMODULATION DISTORTION IN AN ELECTRONIC DEVICE HAVING AN AMPLIFIER CIRCUIT 有权用于减小具有放大器电路的电子设备中的互调失真的方法和装置公开(公告)号：US20090189691A1
公开(公告)日：2009-07-30
申请号：US12021061
申请日：2008-01-28
申请人： Junxiong Deng , Li Liu , Prasad S. Gudem
发明人： Junxiong Deng , Li Liu , Prasad S. Gudem
IPC分类号： H03F1/26
CPC分类号： H03F3/193 , H03F1/223 , H03F1/3205 , H03F1/34 , H03F2200/294 , H03F2201/3206
摘要： An electronic device includes an amplifier circuit coupled to a linearizer. The amplifier circuit may receive a first input signal including first and second frequencies and generate a first output signal including a delta frequency signal at a delta frequency, which is the difference between the first frequency and the second frequency. The linearizer includes a signal detector circuit, a current-mirror circuit, a low pass filter, a phase shifter, and a bias circuit. The signal detector circuit may generate a second output signal. The current-mirror circuit may adjust an amplitude of a signal. The low pass filter may eliminate a portion of the second output signal having frequencies greater than the delta frequency. The phase shifter may generate a feedback signal corresponding to the delta frequency signal. An amplitude and/or a phase of the feedback signal is different from an amplitude and/or a phase of the delta frequency signal.
摘要翻译： 电子设备包括耦合到线性化器的放大器电路。 放大器电路可以接收包括第一和第二频率的第一输入信号，并产生第一输出信号，该第一输出信号包括第一频率和第二频率之间的差异的增量频率的增量频率信号。 线性化器包括信号检测器电路，电流镜电路，低通滤波器，移相器和偏置电路。 信号检测器电路可以产生第二输出信号。 电流镜电路可以调节信号的幅度。 低通滤波器可以消除具有大于Δ频率的频率的第二输出信号的一部分。 移相器可以产生对应于Δ频率信号的反馈信号。 反馈信号的幅度和/或相位与增量频率信号的振幅和/或相位不同。
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公开(公告)号：US08639205B2
公开(公告)日：2014-01-28
申请号：US12052657
申请日：2008-03-20
IPC分类号： H04B1/26
CPC分类号： H04W52/0206 , H03G3/20 , H04B1/16
摘要： An exemplary embodiment disclosed comprises a mixer having a plurality of input leads; a first degenerative impedance element coupled to a first input lead of the mixer; a second degenerative impedance element coupled to a second input lead of the mixer; and a local oscillator (LO) system comprising a plurality of duty cycle modes to generate a LO signal for the mixer, the local oscillator system operates in a first duty cycle based on a first gain state of the mixer, and in a second duty cycle based on a second gain state of the mixer.
摘要翻译： 公开的示例性实施例包括具有多个输入引线的混合器; 耦合到混合器的第一输入引线的第一退化阻抗元件; 耦合到混合器的第二输入引线的第二退化阻抗元件; 以及本地振荡器（LO）系统，其包括多个占空比模式以产生混频器的LO信号，本地振荡器系统基于混频器的第一增益状态在第一占空比中工作，并且在第二占空比 基于混频器的第二增益状态。
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