专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20070142019A1 Mixer Circuit and Method 有权
标题翻译：混频器电路和方法
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。

2. 发明授权

US07890076B2 Mixer circuit and method 有权
标题翻译：混频器电路及方法
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。

3. 发明申请

US20120129474A1 Modulation Method and Apparatus 有权
标题翻译：调制方法和装置
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。

4. 发明授权

US07904036B2 Modulation method and apparatus 有权
标题翻译：调制方法和装置
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。

5. 发明申请

US20070126500A1 Modulation method and apparatus 有权
标题翻译：调制方法和装置
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。

6. 发明申请

US20110124302A1 Modulation Method and Apparatus 有权
标题翻译：调制方法和装置
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。

7. 发明授权

US06985551B1 Linear dead-band-free digital phase detection 失效
标题翻译：线性无死区数字相位检测
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。

8. 发明授权

US08588712B2 Modulation method and apparatus 有权
标题翻译：调制方法和装置
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。

9. 发明授权

US08185067B2 Modulation method and apparatus 有权
标题翻译：调制方法和装置
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。

10. 发明授权

US09825590B2 Passive mixer with reduced second order intermodulation 有权
公开(公告)号：US09825590B2
公开(公告)日：2017-11-21
申请号：US13503168
申请日：2009-10-23
申请人： Sven Mattisson , Pietro Andreani , Daniele Mastantuono
发明人： Sven Mattisson , Pietro Andreani , Daniele Mastantuono
IPC分类号： H03D1/04 , H03D7/12 , H03D7/14 , H03D7/16
CPC分类号： H03D1/04 , H03D7/12 , H03D7/1458 , H03D7/1466 , H03D7/165 , H03D2200/0088
摘要： The present disclosure generally relates to the field of receiver structures in radio communication systems and more specifically to passive mixers in the receiver structure and to a technique for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency. A passive mixer for converting a first signal having a first frequency into a second signal having a second frequency by using a third signal having a third frequency comprises a cancellation component 220 for generating a first cancellation signal for cancelling second order intermodulation components by superimposing the first signal weighted by a cancellation value on the third signal; and a mixing component 231 having a first terminal 232 for receiving the first signal, a second terminal 234 for outputting the second signal, and a third terminal 236 for receiving the first cancellation signal, wherein the mixing component 231 is adapted to provide the second signal as output at the second terminal 234 by mixing the first signal provided as input at the first terminal 232 and the first cancellation signal provided as input at the third terminal 236.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式