公开(公告)号：US20110285464A1

公开(公告)日：2011-11-24

申请号：US12782237

申请日：2010-05-18

申请人： Antonio Montalvo ,  David McLaurin ,  Carl Grace

发明人： Antonio Montalvo ,  David McLaurin ,  Carl Grace

IPC分类号： H03F3/45

CPC分类号： H03F1/223 ,  H03F1/26 ,  H03F3/193 ,  H03F2200/294

摘要： Apparatus and methods are disclosed, such as those involving a low noise amplifier. One such apparatus includes a low noise amplifier circuit configured to receive a signal at an input node and to output an amplified signal at an output node. The low noise amplifier circuit includes a first transistor of a first polarity; and a second transistor of a second polarity complementary to the first polarity. The first and second transistors are connected in series between first and second supply voltage nodes via the output node. The circuit further includes a third transistor cascoded with one of the first transistor or the second transistor, but does not include a transistor cascoded with the other transistor. This configuration allows the low noise amplifier circuit to provide an increased high-frequency gain and linearity while having improved high-frequency system noise figure in, for example, deep submicron CMOS technology.

摘要翻译： 公开了诸如涉及低噪声放大器的装置和方法。 一种这样的装置包括低噪声放大器电路，其被配置为在输入节点处接收信号并在输出节点输出放大的信号。 低噪声放大器电路包括第一极性的第一晶体管; 以及与第一极性互补的第二极性的第二晶体管。 第一和第二晶体管经由输出节点串联连接在第一和第二电源电压节点之间。 电路还包括与第一晶体管或第二晶体管中的一个晶体管串联的第三晶体管，但不包括与另一晶体管级联的晶体管。 该配置允许低噪声放大器电路提供增加的高频增益和线性，同时在例如深亚微米CMOS技术中具有改善的高频系统噪声系数。

公开(公告)号：US08120428B2

公开(公告)日：2012-02-21

申请号：US12782237

申请日：2010-05-18

申请人： Antonio Montalvo ,  David McLaurin ,  Carl Grace

发明人： Antonio Montalvo ,  David McLaurin ,  Carl Grace

IPC分类号： H03F3/68

CPC分类号： H03F1/223 ,  H03F1/26 ,  H03F3/193 ,  H03F2200/294

摘要： Apparatus and methods are disclosed, such as those involving a low noise amplifier. One such apparatus includes a low noise amplifier circuit configured to receive a signal at an input node and to output an amplified signal at an output node. The low noise amplifier circuit includes a first transistor of a first polarity; and a second transistor of a second polarity complementary to the first polarity. The first and second transistors are connected in series between first and second supply voltage nodes via the output node. The circuit further includes a third transistor cascoded with one of the first transistor or the second transistor, but does not include a transistor cascoded with the other transistor. This configuration allows the low noise amplifier circuit to provide an increased high-frequency gain and linearity while having improved high-frequency system noise figure in, for example, deep submicron CMOS technology.

摘要翻译： 公开了诸如涉及低噪声放大器的装置和方法。 一种这样的装置包括低噪声放大器电路，其被配置为在输入节点处接收信号并在输出节点输出放大的信号。 低噪声放大器电路包括第一极性的第一晶体管; 以及与第一极性互补的第二极性的第二晶体管。 第一和第二晶体管经由输出节点串联连接在第一和第二电源电压节点之间。 电路还包括与第一晶体管或第二晶体管中的一个晶体管串联的第三晶体管，但不包括与另一晶体管级联的晶体管。 该配置允许低噪声放大器电路提供增加的高频增益和线性，同时在例如深亚微米CMOS技术中具有改善的高频系统噪声系数。

公开(公告)号：US08594583B2

公开(公告)日：2013-11-26

申请号：US12964479

申请日：2010-12-09

申请人： Antonio Montalvo ,  David McLaurin ,  Oliver Gysel

发明人： Antonio Montalvo ,  David McLaurin ,  Oliver Gysel

IPC分类号： H04B1/00

CPC分类号： H04B1/30

摘要： Apparatus and methods are disclosed, such as those involving an RF receiver. One such apparatus includes a front end having an input and an output. The front end forms part of an RF signal receive path. The front end includes a front-end resistor configured to receive an input signal; and a passive mixer downstream of the front-end resistor on the receive path. The passive mixer mixes the input signal with a local oscillation signal. The front-end includes a transimpedance amplifier located downstream of the passive mixer on the receive path. The transimpedance amplifier includes an input and an output. The front end further includes a feedback resistor coupled between the input and output of the transimpedance amplifier. The gain of the front end is a ratio of the feedback resistance to the front-end resistance, and is temperature- and frequency-insensitive. The apparatus also provides relatively constant input impedance and high linearity.

摘要翻译： 公开了诸如涉及RF接收机的装置和方法。 一种这样的装置包括具有输入和输出的前端。 前端形成RF信号接收路径的一部分。 前端包括被配置为接收输入信号的前端电阻器; 以及在接收路径上的前端电阻器下游的无源混频器。 无源混频器将输入信号与本地振荡信号混频。 前端包括位于接收路径上无源混频器下游的跨阻放大器。 跨阻放大器包括输入和输出。 前端还包括耦合在跨阻放大器的输入和输出之间的反馈电阻器。 前端的增益是反馈电阻与前端电阻的比值，是温度和频率不敏感的。 该装置还提供相对恒定的输入阻抗和高线性度。

公开(公告)号：US20120149321A1

公开(公告)日：2012-06-14

申请号：US12964479

申请日：2010-12-09

申请人： Antonio Montalvo ,  David McLaurin ,  Oliver Gysel

发明人： Antonio Montalvo ,  David McLaurin ,  Oliver Gysel

IPC分类号： H04B1/26 ,  H04B7/00

CPC分类号： H04B1/30

摘要： Apparatus and methods are disclosed, such as those involving an RF receiver. One such apparatus includes a front end having an input and an output. The front end forms part of an RF signal receive path. The front end includes a front-end resistor configured to receive an input signal; and a passive mixer downstream of the front-end resistor on the receive path. The passive mixer mixes the input signal with a local oscillation signal. The front-end includes a transimpedance amplifier located downstream of the passive mixer on the receive path. The transimpedance amplifier includes an input and an output. The front end further includes a feedback resistor coupled between the input and output of the transimpedance amplifier. The gain of the front end is a ratio of the feedback resistance to the front-end resistance, and is temperature- and frequency-insensitive. The apparatus also provides relatively constant input impedance and high linearity.

摘要翻译： 公开了诸如涉及RF接收机的装置和方法。 一种这样的装置包括具有输入和输出的前端。 前端形成RF信号接收路径的一部分。 前端包括被配置为接收输入信号的前端电阻器; 以及在接收路径上的前端电阻器下游的无源混频器。 无源混频器将输入信号与本地振荡信号混频。 前端包括位于接收路径上无源混频器下游的跨阻放大器。 跨阻放大器包括输入和输出。 前端还包括耦合在跨阻放大器的输入和输出之间的反馈电阻器。 前端的增益是反馈电阻与前端电阻的比值，是温度和频率不敏感的。 该装置还提供相对恒定的输入阻抗和高线性度。

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。