公开(公告)号：US20150244401A1

公开(公告)日：2015-08-27

申请号：US14617938

申请日：2015-02-10

Applicant: Mediatek Inc.

Inventor： Yuan-Hung Chung ,  Meng-Hsiung Hung ,  Chun-Wei Lin ,  Wei-Kai Hong ,  Keng Leong Fong ,  George Chien ,  Ming-Yeh Hsu

IPC: H04B1/02 ,  H04W4/00 ,  H03F1/02 ,  H03F3/189 ,  H03F3/20

CPC classification number: H04W4/80 ,  H03F1/565 ,  H03F3/19 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/09 ,  H03F2200/222 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/541 ,  H04B1/0458 ,  H04B2001/0408 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/26 ,  Y02D70/40

Abstract: A transmitting device includes a transmitting chain, a configurable power amplifier device and an impedance tuning circuit. The transmitting chain is arranged to generate a radio frequency signal. The configurable power amplifier device is arranged to support at least a first power amplifier configuration and a second power amplifier configuration, wherein the configurable power amplifier device employs the first power amplifier configuration to receive and amplify the radio frequency signal when the transmitting device is operated in a first operation mode, and employs the second power amplifier configuration to receive and amplify the radio frequency signal when the transmitting device is operated in a second operation mode. The impedance tuning circuit is arranged to adjust an output impedance of the configurable power amplifier device employing the second power amplifier configuration when the transmitting device is operated in the second operation mode.

Abstract translation: 发送装置包括发送链，可配置功率放大器装置和阻抗调谐电路。 发射链被设置成产生射频信号。 配置的功率放大器装置被布置成支持至少第一功率放大器配置和第二功率放大器配置，其中可配置功率放大器设备采用第一功率放大器配置来在发射设备操作时接收和放大射频信号 第一操作模式，并且当发送装置在第二操作模式下操作时采用第二功率放大器配置来接收和放大射频信号。 阻抗调谐电路被布置为当发射装置在第二操作模式下操作时，调整采用第二功率放大器配置的可配置功率放大器装置的输出阻抗。

公开(公告)号：US09118288B2

公开(公告)日：2015-08-25

申请号：US14275880

申请日：2014-05-13

Applicant: MEDIATEK INC.

Inventor： Jie-Wei Lai ,  Meng-Hsiung Hung ,  Robert Bogdan Staszewski

IPC: H03F1/00 ,  H03F3/68 ,  H03F3/217 ,  H03F3/21

CPC classification number: H03F3/68 ,  H03F3/193 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2176 ,  H03F3/2178

Abstract: A digitally-controlled power amplifier (DPA) includes a radio-frequency (RF) clock input, an amplitude control word (ACW) input, and a plurality of DPA cells. The RF clock input is arranged for receiving an RF clock. The ACW input is arranged for receiving a digital ACW signal. The DPA cells are coupled to the RF clock and the digital ACW signal, wherein at least one of the DPA cells is gradually turned on and off in response to at least one bit of the digital ACW signal.

Abstract translation: 数字控制功率放大器（DPA）包括射频（RF）时钟输入，幅度控制字（ACW）输入和多个DPA信元。 RF时钟输入被布置用于接收RF时钟。 ACW输入被安排用于接收数字ACW信号。 DPA单元耦合到RF时钟和数字ACW信号，其中响应于数字ACW信号的至少一位，DPA单元中的至少一个逐渐导通和截止。

公开(公告)号：US20140240047A1

公开(公告)日：2014-08-28

申请号：US14275880

申请日：2014-05-13

Applicant: MEDIATEK INC.

Inventor： Jie-Wei Lai ,  Meng-Hsiung Hung ,  Robert Bogdan Staszewski

IPC: H03F3/68

CPC classification number: H03F3/68 ,  H03F3/193 ,  H03F3/211 ,  H03F3/2171 ,  H03F3/2176 ,  H03F3/2178

Abstract: A digitally-controlled power amplifier (DPA) includes a radio-frequency (RF) clock input, an amplitude control word (ACW) input, and a plurality of DPA cells. The RF clock input is arranged for receiving an RF clock. The ACW input is arranged for receiving a digital ACW signal. The DPA cells are coupled to the RF clock and the digital ACW signal, wherein at least one of the DPA cells is gradually turned on and off in response to at least one bit of the digital ACW signal.

Abstract translation: 数字控制功率放大器（DPA）包括射频（RF）时钟输入，幅度控制字（ACW）输入和多个DPA信元。 RF时钟输入被布置用于接收RF时钟。 ACW输入被安排用于接收数字ACW信号。 DPA单元耦合到RF时钟和数字ACW信号，其中响应于数字ACW信号的至少一位，DPA单元中的至少一个逐渐导通和截止。