公开(公告)号：US20140152399A1

公开(公告)日：2014-06-05

申请号：US13691308

申请日：2012-11-30

Applicant: QUALCOMM Incorporated

Inventor： Danial Ehyaie ,  Muhammad Adnan

IPC: H03H7/20

CPC classification number: H03H7/20 ,  H03H7/185

Abstract: A digitally controlled phase shifter is disclosed. In an exemplary embodiment, an apparatus includes a first component connected between a first terminal and a node, a second component connected between a second terminal and the node, an impedance selectively connected between the first and second terminals by a first switch, and a second switch to connected between the node and a ground. The apparatus is configured to provide a first amount of phase shift when the first and second switches are in an open position, and a second amount of phase shift when the first and second switches are in a closed position.

Abstract translation: 公开了一种数字控制移相器。 在示例性实施例中，一种装置包括连接在第一终端和节点之间的第一组件，连接在第二终端和节点之间的第二组件，通过第一开关选择性地连接在第一和第二终端之间的阻抗，以及第二组件 切换到节点与地之间的连接。 该装置被配置为当第一和第二开关处于打开位置时提供第一相移量，并且当第一和第二开关处于关闭位置时，提供第二相移量。

公开(公告)号：US09258021B1

公开(公告)日：2016-02-09

申请号：US14607775

申请日：2015-01-28

Applicant: QUALCOMM Incorporated

Inventor： Yashar Rajavi ,  Alireza Khalili ,  Muhammad Adnan

IPC: H04B1/40 ,  H04B1/04

CPC classification number: H04W52/028 ,  H04B1/403 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/40

Abstract: An analog front-end (AFE) for a communications device includes a low-power frequency synthesizer with reduced footprint. The AFE includes a first frequency synthesizer and a second frequency synthesizer. The first frequency synthesizer is coupled to a transmit (TX) chain and to a receive (RX) chain of the AFE. The first frequency synthesizer is to generate a first local oscillator (LO) signal for transmitting or receiving carrier signals when the device is in a normal operating mode. The second frequency synthesizer is coupled to the RX chain and shares one or more components of the TX chain. The second frequency synthesizer is to utilize the one or more shared components to generate a second LO signal for receiving carrier signals when the device operates in a low-power mode. For example, the one or more shared components may include a voltage source and/or one or more inductors.

Abstract translation: 用于通信设备的模拟前端（AFE）包括具有减小占位面积的低功率频率合成器。 AFE包括第一频率合成器和第二频率合成器。 第一个频率合成器耦合到AFE的发送（TX）链和接收（RX）链。 当第一频率合成器处于正常操作模式时，产生用于发送或接收载波信号的第一本地振荡器（LO）信号。 第二频率合成器耦合到RX链并共享TX链的一个或多个组件。 第二频率合成器是利用一个或多个共享分量来产生第二LO信号，用于在设备以低功率模式工作时接收载波信号。 例如，一个或多个共享组件可以包括电压源和/或一个或多个电感器。

公开(公告)号：US09319021B2

公开(公告)日：2016-04-19

申请号：US13691308

申请日：2012-11-30

Applicant: QUALCOMM Incorporated

Inventor： Danial Ehyaie ,  Muhammad Adnan

IPC: H03H7/20 ,  H03H7/18

CPC classification number: H03H7/20 ,  H03H7/185

Abstract: A digitally controlled phase shifter is disclosed. In an exemplary embodiment, an apparatus includes a first component connected between a first terminal and a node, a second component connected between a second terminal and the node, an impedance selectively connected between the first and second terminals by a first switch, and a second switch to connected between the node and a ground. The apparatus is configured to provide a first amount of phase shift when the first and second switches are in an open position, and a second amount of phase shift when the first and second switches are in a closed position.

Abstract translation: 公开了一种数字控制移相器。 在示例性实施例中，一种装置包括连接在第一终端和节点之间的第一组件，连接在第二终端和节点之间的第二组件，通过第一开关选择性地连接在第一和第二终端之间的阻抗，以及第二组件 切换到节点与地之间的连接。 该装置被配置为当第一和第二开关处于打开位置时提供第一相移量，并且当第一和第二开关处于关闭位置时，提供第二相移量。