公开(公告)号：US20110151821A1

公开(公告)日：2011-06-23

申请号：US13040570

申请日：2011-03-04

申请人： David F. SORRELLS ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

发明人： David F. SORRELLS ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

IPC分类号： H04B1/26

CPC分类号： H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

公开(公告)号：US20100171542A1

公开(公告)日：2010-07-08

申请号：US12348606

申请日：2009-01-05

申请人： Geoffrey C. Dawe ,  Krenar Komoni

发明人： Geoffrey C. Dawe ,  Krenar Komoni

IPC分类号： G06G7/12

CPC分类号： H03D7/14 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/1475 ,  H03D2200/0025 ,  H03D2200/0043 ,  H03D2200/0084

摘要： A frequency mixer or modulator circuit that is reconfigurable through electronic programming among active and passive operation, and/or harmonic and sub-harmonic operation, and/or up-conversion and down-conversion, and/or no-overlap, off-overlap, and on-overlap mixing, and/or upper-sideband modulation and lower-sideband modulation. In one example, the frequency mixer or modulator circuit also includes automatic gain control.

摘要翻译： 可以通过有源和无源操作之间的电子编程，和/或谐波和次谐波操作，和/或上转换和下变频，和/或不重叠，非重叠的重叠来重配置的混频器或调制器电路， 和重叠混合，和/或上边带调制和下边带调制。 在一个示例中，混频器或调制器电路还包括自动增益控制。

公开(公告)号：US07657246B2

公开(公告)日：2010-02-02

申请号：US11764095

申请日：2007-06-15

申请人： David H. Shen ,  Ann P. Shen

发明人： David H. Shen ,  Ann P. Shen

IPC分类号： H04B1/28

CPC分类号： H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1466 ,  H03D7/1475 ,  H03D7/165

摘要： Particular embodiments of mixer designs permit greater integration on standard chips with an improvement in power and linearity to enable low-power, high-performance reception. Some embodiments feature a method of frequency conversion using at least two stages of switches to mix an input signal with reference signals. The method involves mixing a differential input signal with a first differential reference signal through a first stage of switches, generating from the first stage of switches a first frequency converted differential signal, and mixing the first frequency converted differential signal with a second differential reference signal through a second stage of switches. The method includes generating from the second stage of switches a second frequency converted differential signal. The first differential reference signal can be phase shifted from the second differential reference signal and can have a different frequency. The mixer designs can have multiple stages of switches in a low-supply voltage design.

摘要翻译： 混频器设计的特定实施例允许在标准芯片上进行更大的集成，同时具有功率和线性度的改善以实现低功率，高性能的接收。 一些实施例的特征在于使用至少两级开关的频率转换方法来将输入信号与参考信号混合。 该方法包括通过第一级开关将差分输入信号与第一差分参考信号混合，从开关的第一级产生第一变频差分信号，并将第一频率转换的差分信号与第二差分参考信号通过 第二级开关。 该方法包括从第二级切换产生第二频率转换的差分信号。 第一差分参考信号可以从第二差分参考信号相移并且可以具有不同的频率。 混频器设计可以在低电压电压设计中具有多级开关。

公开(公告)号：US20090111394A1

公开(公告)日：2009-04-30

申请号：US12208198

申请日：2008-09-10

申请人： Sasidhar Vajha ,  Timothy T. Childs ,  Daniel C. Eller

发明人： Sasidhar Vajha ,  Timothy T. Childs ,  Daniel C. Eller

IPC分类号： H04B1/40

CPC分类号： H03B5/1852 ,  H03D7/1441 ,  H03D7/1475 ,  H03D2200/0084 ,  H04B1/40

摘要： A variable operational mode transceiver device formed with an integrated circuit having a semiconductor material substrate supporting a feedback oscillator having a signal power divider electrically coupled to said feedback oscillator output, and a signal frequency multiplier electrically coupled to said signal power divider. A signal mixer has a pair of inputs of which one is electrically coupled to that remaining one of said pair of outputs of said signal power divider.

摘要翻译： 一种可变操作模式收发器装置，其形成有具有支撑具有电耦合到所述反馈振荡器输出的信号功率分配器的反馈振荡器的半导体材料基板的集成电路，以及电耦合到所述信号功率分配器的信号倍频器。 信号混合器具有一对输入，其中一个输入电耦合到所述信号功率分配器的所述一对输出中的剩余的一个。

公开(公告)号：US07389100B2

公开(公告)日：2008-06-17

申请号：US10394069

申请日：2003-03-24

申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr. ,  Michael W. Rawlins ,  Gregory S. Rawlins

发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr. ,  Michael W. Rawlins ,  Gregory S. Rawlins

IPC分类号： H04B1/16

CPC分类号： H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

公开(公告)号：US07324798B2

公开(公告)日：2008-01-29

申请号：US10899148

申请日：2004-07-27

申请人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Kuk Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

发明人： Hae-Moon Seo ,  Kwang-Ho Won ,  Yong Kuk Park ,  Myung-Hyun Yoon ,  June-Jae Yoo

IPC分类号： H04B1/26

CPC分类号： H03C3/40 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/1483 ,  H03D2200/0084

摘要： Disclosed herein is a 2N-order sub-harmonic frequency modulator and direct conversion transmitter using the same. The direct conversion transmitter includes a digital modulation unit, a D/A conversion unit, a DC correction and low pass filter unit, a local oscillator, a poly phase signal generation unit, a 2N-order sub-harmonic I/Q frequency modulation unit, a power amplification unit, and an antenna. The digital modulation unit digitally modulates a base-band signal and then outputs I and Q component signals. The D/A conversion unit converts the I and Q component signals into analog I and Q component signals. The DC correction and low pass filter unit adjusts DC interfaces of the analog I and Q component signals, passes low frequency components of the analog I and Q component signals and generates I and Q components of a base-band signal. The local oscillator generates a sine wave signal with a frequency of FTX/2N. The poly phase signal generation unit generates a poly phase signal with 2N+1 phases. The frequency modulation unit mixes the I and Q components with the poly phase signal with 2N+1 phases to generate an output signal with a frequency of FTX. The power amplification unit amplifies the output of the frequency modulation unit to a required level. The antenna radiates the output signal of the power amplification unit.

摘要翻译： 这里公开了一种使用该二次谐波的二次谐波调制器和直接变换发射机。 直接变换发射机包括数字调制单元，D / A转换单元，DC校正和低通滤波器单元，本地振荡器，多相信号生成单元，2阶N - 和弦I / Q调频单元，功率放大单元和天线。 数字调制单元对基带信号进行数字调制，然后输出I和Q分量信号。 D / A转换单元将I和Q分量信号转换成模拟I和Q分量信号。 DC校正和低通滤波器单元调整模拟I和Q分量信号的DC接口，通过模拟I和Q分量信号的低频分量，并产生基带信号的I和Q分量。 本地振荡器产生频率为F N 2 / N 2的正弦波信号。 多相信号生成单元生成具有2个N + 1个相位的多相信号。 频率调制单元将I和Q分量与具有2个N + 1个相位的多相信号进行混合，以产生频率为F TX的输出信号。 功率放大单元将频率调制单元的输出放大到所要求的水平。 天线辐射功率放大单元的输出信号。

公开(公告)号：US07194246B2

公开(公告)日：2007-03-20

申请号：US11020547

申请日：2004-12-27

申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses

发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses

IPC分类号： H04B1/26 ,  H04B1/16

CPC分类号： H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

公开(公告)号：US07187917B2

公开(公告)日：2007-03-06

申请号：US10811584

申请日：2004-03-29

申请人： Heng-Chih Lin ,  Ranjit Gharpurey

发明人： Heng-Chih Lin ,  Ranjit Gharpurey

IPC分类号： H04B1/26

CPC分类号： H03B27/00 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/1483 ,  H03D7/165 ,  H03D2200/0033 ,  H03D2200/0086

摘要： A circuit provides a reduced harmonic content output signal OUTA and/or OUTB that is modulated according to an input signal 231. The circuit has an oscillator circuit 210 and a harmonic rejection mixer (HRM) 230. The oscillator circuit 210 includes at least one “circuit portion” (FIG. 2A) configured to receive first and second orthogonal oscillator input signals (two of I, I−, Q, Q−) having respective first and second phases, and to provide an arbitrarily large number of oscillator output signals (φM) having respective mutually distinct phases that are interpolated between the first and second phases. Harmonic rejection mixer 230 is configured to use the input signal to modulate a combination of the oscillator output signals, the oscillator output signals being respectively weighted so as to provide an emulated sinusoidal signal constituting the reduced harmonic content output signal.

摘要翻译： 电路提供根据输入信号231调制的减少的谐波含量输出信号OUTA和/或OUTB。 电路具有振荡电路210和谐波抑制混频器（HRM）230。 振荡器电路210包括至少一个“电路部分”（图2A），其被配置为接收具有相应的第一和第二相位的第一和第二正交振荡器输入信号（I，I，I，Q-中的两个），并且 提供任意大量的振荡器输出信号（phiM），其具有在第一和第二相之间插值的各自相互不同的相位。 谐波抑制混频器230被配置为使用输入信号来调制振荡器输出信号的组合，振荡器输出信号被分别加权，以便提供构成还原谐波内容输出信号的仿真正弦信号。

公开(公告)号：US20060270376A1

公开(公告)日：2006-11-30

申请号：US11498803

申请日：2006-08-04

申请人： Takumi Miyashita

发明人： Takumi Miyashita

IPC分类号： H04B1/26

CPC分类号： H03D7/145 ,  H03D7/1458 ,  H03D7/1475 ,  H03D2200/0047 ,  H03D2200/0084 ,  H03D2200/009

摘要： A mixer circuit contains a first terminal and a second terminal to which a first differential input signal is applied, and an active element switching a short-circuit between the first terminal and the second terminal. By driving the active element by a second differential input signal having a predetermined frequency, the first terminal and the second terminal are intermittently short-circuited at twice the frequency of a predetermined frequency.

公开(公告)号：US20060006921A1

公开(公告)日：2006-01-12

申请号：US10885159

申请日：2004-07-06

申请人： Bernard Tenbroek ,  David McLaurin ,  Jonathan Strange

发明人： Bernard Tenbroek ,  David McLaurin ,  Jonathan Strange

IPC分类号： G06F7/44

CPC分类号： H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D2200/0043

摘要： A mixer core is provided which has a pair of CMOS transistors 21 and 22 connected as a matched pair and having a common source node N1. The CMOS transistors have a non-linear parasitic capacitance which degrades the harmonic performance of the mixer core. An inductor is connected to the common source node and optionally to ground, a signal input node or to a further common source node when the mixer core is part of a double balanced mixer. The inductor is chosen such that it co-operates with the parasitic capacitors to form a resonant circuit tuned to the local oscillator frequency or optionally a harmonic of it, such as the second harmonic, or to the input signal frequency.

摘要翻译： 提供了一个混频器核心，其具有连接成匹配对并具有公共源节点N 1 1的一对CMOS晶体管21和22。 CMOS晶体管具有非线性寄生电容，这降低了混频器核心的谐波性能。 当混频器核心是双平衡混频器的一部分时，电感器连接到公共源节点并且可选地接地，信号输入节点或另一公共源节点。 电感器被选择为使得其与寄生电容器协作以形成调谐到本地振荡器频率或可选地其谐波的谐振电路，例如二次谐波或输入信号频率。