公开(公告)号：US06985551B1

公开(公告)日：2006-01-10

申请号：US09580632

申请日：2000-05-30

申请人： Sven Mattisson ,  Hans Hagberg ,  Magnus Nilsson

发明人： Sven Mattisson ,  Hans Hagberg ,  Magnus Nilsson

IPC分类号： H03D3/24

CPC分类号： H03L7/1976 ,  H03D13/004 ,  H03L7/0891

摘要： A phase-locked loop includes a phase detector, a loop filter, a voltage controlled oscillator and a frequency divider arranged such that the phase detector generates a phase detector output signal as a function of a phase difference between the reference clock signal and the feedback signal; the loop filter generates a frequency control signal from the phase detector output signal; the voltage controlled oscillator generates a phase-locked loop output signal that has a frequency that is controlled by the frequency control signal; and the frequency divider generates the feedback signal from the phase-locked loop output signal. The phase-locked loop further includes one or more circuit elements that maintain an operating point of the phase detector such that, for a predetermined range of both positive and negative phase differences between the reference clock signal and the feedback signal, the output signal is generated as a substantially linear function of the phase difference between the reference clock signal and the feedback signal.

摘要翻译： 锁相环包括相位检测器，环路滤波器，压控振荡器和分频器，其被布置成使得相位检测器产生作为参考时钟信号和反馈信号之间的相位差的函数的相位检测器输出信号 ; 环路滤波器从相位检测器输出信号产生频率控制信号; 压控振荡器产生具有由频率控制信号控制的频率的锁相环输出信号; 并且分频器从锁相环输出信号产生反馈信号。 锁相环还包括保持相位检测器的工作点的一个或多个电路元件，使得在参考时钟信号和反馈信号之间的正和负相位差的预定范围内，产生输出信号 作为参考时钟信号和反馈信号之间的相位差的基本线性函数。

公开(公告)号：US20070142019A1

公开(公告)日：2007-06-21

申请号：US11551464

申请日：2006-10-20

申请人： Sven Mattisson ,  Magnus Nilsson ,  Andreas Nydahl ,  Thomas Mattsson

发明人： Sven Mattisson ,  Magnus Nilsson ,  Andreas Nydahl ,  Thomas Mattsson

IPC分类号： H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0023 ,  H03D2200/0084 ,  H03H19/008

摘要： A method of providing an input signal to a mixer circuit comprises coupling an output signal from a low-noise amplifier circuit to a mixer input of the mixer circuit via an AC coupling circuit, comprising an inductive of capacitive coupling circuit. For capacitive coupling configurations, a coupling capacitor is configured to have a capacitance value determined as a function of a transconductance sensitivity of the mixer circuit. For balanced output configurations of the low-noise amplifier circuit, matched coupling capacitors are used for coupling the balanced output signals to respective inputs of the mixer circuit. In one embodiment, the mixer circuit comprises a quadrature mixer circuit, which may be in a balanced or double-balanced configuration. In another embodiment, the mixer circuit comprises a four-phase mixer circuit, which may be configured as a balanced four-phase mixer circuit coupled to the low-noise amplifier circuit via inductive or capacitive embodiments of the coupling circuit.

摘要翻译： 一种向混频器电路提供输入信号的方法包括：通过AC耦合电路将来自低噪声放大器电路的输出信号耦合到混频器电路的混频器输入，该AC耦合电路包括电容耦合电路的电感。 对于电容耦合配置，耦合电容器被配置为具有根据混频器电路的跨导灵敏度确定的电容值。 对于低噪声放大器电路的平衡输出配置，匹配的耦合电容用于将平衡输出信号耦合到混频器电路的相应输入。 在一个实施例中，混频器电路包括正交混频器电路，其可以是平衡或双平衡配置。 在另一个实施例中，混频器电路包括四相混频器电路，其可以被配置为通过耦合电路的电感或电容实施例耦合到低噪声放大器电路的平衡四相混频器电路。

公开(公告)号：US20120129474A1

公开(公告)日：2012-05-24

申请号：US13361163

申请日：2012-01-30

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H04B1/04 ,  H03C3/00

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US07904036B2

公开(公告)日：2011-03-08

申请号：US11292488

申请日：2005-12-02

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H01Q11/12 ,  H04B1/04 ,  H03F3/38

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US20070126500A1

公开(公告)日：2007-06-07

申请号：US11292488

申请日：2005-12-02

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H03F3/38

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US07102447B2

公开(公告)日：2006-09-05

申请号：US10837573

申请日：2004-05-04

申请人： Sven Mattisson ,  Hans Hagberg

发明人： Sven Mattisson ,  Hans Hagberg

IPC分类号： H01L7/00

CPC分类号： H03B5/04

摘要： Disclosed are methods and circuit configurations for reference frequency signal distribution circuitry that suppress unwanted spurious components introduced by way of RF signal leakage. The methods and circuitry may include relocating components of a buffer along a reference frequency signal path, thereby suppressing conductive and inductive components associated with RF leakage paths entering the circuitry. A filter also may be used after the buffer to suppress spurious components resulting from subsampling of unwanted tones in a phase frequency detector or intermodulation between the reference signal and interference tones in the signal-path of the buffer.

摘要翻译： 公开了用于抑制通过RF信号泄漏引入的不想要的杂散分量的参考频率信号分配电路的方法和电路配置。 方法和电路可以包括沿着参考频率信号路径重新定位缓冲器的部件，从而抑制与进入电路的RF泄漏路径相关联的导电和感应部件。 也可以在缓冲器之后使用滤波器来抑制由相位频率检测器中的不想要的音调的二次采样引起的杂散分量或者在缓冲器的信号路径中的参考信号和干扰音调之间的互调。

公开(公告)号：US20110124302A1

公开(公告)日：2011-05-26

申请号：US13015157

申请日：2011-01-27

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H04B1/04 ,  H03C3/00

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US08588712B2

公开(公告)日：2013-11-19

申请号：US13361163

申请日：2012-01-30

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H01Q11/12 ,  H04B1/04 ,  H03F3/38

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管，并将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US08185067B2

公开(公告)日：2012-05-22

申请号：US13015157

申请日：2011-01-27

申请人： Sven Mattisson ,  Magnus Nilsson

发明人： Sven Mattisson ,  Magnus Nilsson

IPC分类号： H01Q11/12 ,  H04B1/04 ,  H03F3/38

CPC分类号： H03C3/40

摘要： A modulation circuit for use in a radiofrequency transmitter includes a local oscillator circuit configured to generate one or more local oscillator signals at a desired frequency and with a duty cycle at or about twenty-five percent, and a modulator configured to generate one or more modulated signals responsive to the one or more local oscillator signals and one or more baseband information signals. In at least one embodiment, the modulation circuit includes a modulator comprising a combined mixing and transconductance circuit that includes a transistor circuit for each baseband information signal serving as a modulation input to the modulator. Each transistor circuit comprises a first transistor driven by the baseband information signal and coupling a modulator output node to a corresponding transconductance element, and a second transistor driven by one of the one or more local oscillator signals and coupling the corresponding transconductance element to a signal ground node.

摘要翻译： 用于射频发射机的调制电路包括本地振荡器电路，其被配置为以期望的频率产生一个或多个本地振荡器信号，占空比为或约为百分之二十五，而调制器被配置为产生一个或多个调制 响应于一个或多个本地振荡器信号的信号和一个或多个基带信息信号。 在至少一个实施例中，调制电路包括一个调制器，该调制器包括组合的混合和跨导电路，其包括用作每个基带信息信号的晶体管电路，用作调制器的调制输入。 每个晶体管电路包括由基带信息信号驱动的第一晶体管和将调制器输出节点耦合到对应的跨导元件，以及由一个或多个本地振荡器信号之一驱动的第二晶体管，并将相应的跨导元件耦合到信号地 节点。

公开(公告)号：US07890076B2

公开(公告)日：2011-02-15

申请号：US11551464

申请日：2006-10-20

申请人： Sven Mattisson ,  Magnus Nilsson ,  Andreas Nydahl ,  Thomas Mattsson

发明人： Sven Mattisson ,  Magnus Nilsson ,  Andreas Nydahl ,  Thomas Mattsson

IPC分类号： H04B1/26

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/165 ,  H03D2200/0023 ,  H03D2200/0084 ,  H03H19/008

摘要： A method of providing an input signal to a mixer circuit comprises coupling an output signal from a low-noise amplifier circuit to a mixer input of the mixer circuit via an AC coupling circuit, comprising an inductive of capacitive coupling circuit. For capacitive coupling configurations, a coupling capacitor is configured to have a capacitance value determined as a function of a transconductance sensitivity of the mixer circuit. For balanced output configurations of the low-noise amplifier circuit, matched coupling capacitors are used for coupling the balanced output signals to respective inputs of the mixer circuit. In one embodiment, the mixer circuit comprises a quadrature mixer circuit, which may be in a balanced or double-balanced configuration. In another embodiment, the mixer circuit comprises a four-phase mixer circuit, which may be configured as a balanced four-phase mixer circuit coupled to the low-noise amplifier circuit via inductive or capacitive embodiments of the coupling circuit.

摘要翻译： 一种向混频器电路提供输入信号的方法包括：通过AC耦合电路将来自低噪声放大器电路的输出信号耦合到混频器电路的混频器输入，该AC耦合电路包括电容耦合电路的电感。 对于电容耦合配置，耦合电容器被配置为具有根据混频器电路的跨导灵敏度确定的电容值。 对于低噪声放大器电路的平衡输出配置，匹配的耦合电容用于将平衡输出信号耦合到混频器电路的相应输入。 在一个实施例中，混频器电路包括正交混频器电路，其可以是平衡或双平衡配置。 在另一个实施例中，混频器电路包括四相混频器电路，其可以被配置为通过耦合电路的电感或电容实施例耦合到低噪声放大器电路的平衡四相混频器电路。