公开(公告)号：US20140266518A1

公开(公告)日：2014-09-18

申请号：US13826265

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Xinwei Wang ,  Xiangdong Zhang ,  Marc Gerald Dicicco

IPC: H03H11/24

CPC classification number: H03H7/25 ,  H01P1/22

Abstract: A step attenuator with constant input capacitance and having good performance is disclosed. In an exemplary design, an apparatus includes a step attenuator having a constant input capacitance for different amounts of attenuation. The step attenuator receives an input signal, provides a variable amount of attenuation for the input signal, and provides an output signal. The step attenuator may include a plurality of attenuator sections coupled in series. Each attenuator section may include a plurality of capacitors and may have the constant input capacitance. At least one of the plurality of attenuator sections may be selected or unselected to obtain a selected amount of attenuation for the step attenuator. An attenuator section may provide a predetermined amount of attenuation or a variable amount of attenuation when selected. The apparatus may further include a power detector that receives and determines the power of the output signal from the step attenuator.

Abstract translation: 公开了具有恒定输入电容并具有良好性能的阶梯衰减器。 在示例性设计中，装置包括具有用于不同衰减量的恒定输入电容的阶梯衰减器。 步进衰减器接收输入信号，为输入信号提供可变量的衰减，并提供输出信号。 阶梯衰减器可以包括串联耦合的多个衰减器部分。 每个衰减器部分可以包括多个电容器并且可以具有恒定的输入电容。 可以选择或取消选择多个衰减器部分中的至少一个以获得用于步进衰减器的选定量的衰减。 衰减器部分可以在选择时提供预定量的衰减或可变量的衰减。 该装置还可以包括功率检测器，其接收并确定来自阶梯衰减器的输出信号的功率。

公开(公告)号：US09467196B2

公开(公告)日：2016-10-11

申请号：US14173085

申请日：2014-02-05

Applicant: QUALCOMM Incorporated

Inventor： James Francis Imbornone ,  Xinwei Wang ,  Marc Gerald Dicicco ,  Frederic Carrez ,  Zhenying Luo ,  Xiangdong Zhang

IPC: H04B1/40 ,  H04B1/48 ,  H04B1/04 ,  H04B1/00

CPC classification number: H04B1/48 ,  H04B1/0057 ,  H04B1/0475 ,  H04B2001/485

Abstract: A device includes a first circuit path coupled to a first node and a second node, the first circuit path having at least one first varactor circuit configured to receive a first tuning voltage, the first circuit path having a resistor with a selectable value, and a second circuit path coupled to the first node and the second node, the second circuit path having at least one second varactor circuit configured to receive a second tuning voltage, the second circuit path having a capacitor with a selectable value.

Abstract translation: 一种设备包括耦合到第一节点和第二节点的第一电路路径，第一电路路径具有被配置为接收第一调谐电压的至少一个第一变容二极管电路，第一电路路径具有可选择值的电阻器，以及 第二电路路径，其耦合到第一节点和第二节点，第二电路路径具有被配置为接收第二调谐电压的至少一个第二变容二极管电路，第二电路路径具有具有可选择值的电容器。

公开(公告)号：US09985601B2

公开(公告)日：2018-05-29

申请号：US13826265

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Xinwei Wang ,  Xiangdong Zhang ,  Marc Gerald Dicicco

IPC: H01P1/22 ,  H03H7/25

CPC classification number: H03H7/25 ,  H01P1/22

Abstract: A step attenuator with constant input capacitance and having good performance is disclosed. In an exemplary design, an apparatus includes a step attenuator having a constant input capacitance for different amounts of attenuation. The step attenuator receives an input signal, provides a variable amount of attenuation for the input signal, and provides an output signal. The step attenuator may include a plurality of attenuator sections coupled in series. Each attenuator section may include a plurality of capacitors and may have the constant input capacitance. At least one of the plurality of attenuator sections may be selected or unselected to obtain a selected amount of attenuation for the step attenuator. An attenuator section may provide a predetermined amount of attenuation or a variable amount of attenuation when selected. The apparatus may further include a power detector that receives and determines the power of the output signal from the step attenuator.

公开(公告)号：US20150222319A1

公开(公告)日：2015-08-06

申请号：US14173085

申请日：2014-02-05

Applicant: QUALCOMM Incorporated

Inventor： James Francis Imbornone ,  Xinwei Wang ,  Marc Gerald Dicicco ,  Frederic Carrez ,  Zhenying Luo ,  Xiangdong Zhang

IPC: H04B1/48

CPC classification number: H04B1/48 ,  H04B1/0057 ,  H04B1/0475 ,  H04B2001/485

Abstract: A device includes a first circuit path coupled to a first node and a second node, the first circuit path having at least one first varactor circuit configured to receive a first tuning voltage, the first circuit path having a resistor with a selectable value, and a second circuit path coupled to the first node and the second node, the second circuit path having at least one second varactor circuit configured to receive a second tuning voltage, the second circuit path having a capacitor with a selectable value.

Abstract translation: 一种设备包括耦合到第一节点和第二节点的第一电路路径，第一电路路径具有被配置为接收第一调谐电压的至少一个第一变容二极管电路，第一电路路径具有可选择值的电阻器，以及 第二电路路径，其耦合到第一节点和第二节点，第二电路路径具有被配置为接收第二调谐电压的至少一个第二变容二极管电路，第二电路路径具有具有可选择值的电容器。

公开(公告)号：US20150022024A1

公开(公告)日：2015-01-22

申请号：US13944709

申请日：2013-07-17

Applicant: Qualcomm Incorporated

Inventor： Marc Gerald Dicicco ,  Xiangdong Zhang ,  Xinwei Wang

IPC: H03K17/16

CPC classification number: H03K17/16 ,  H03K17/162

Abstract: Exemplary embodiments are related to switch linearizer. A device may include at least one switch. The device may further include a linearizer coupled to the at least one switch and configured to cancel at least a portion of distortion generated by the at least one switch in an off-state.

Abstract translation: 示例性实施例涉及开关线性化器。 设备可以包括至少一个开关。 该装置还可以包括耦合到该至少一个开关的线性化装置，并且被配置为在断开状态下消除由至少一个开关产生的失真的至少一部分。