公开(公告)号：US10790786B2

公开(公告)日：2020-09-29

申请号：US16490230

申请日：2017-09-27

Applicant: Intel Corporation

Inventor： Stephan Henzler ,  Andreas Langer ,  Bernhard Raaf

IPC: H03F1/30 ,  H03F1/02 ,  H03F3/19 ,  H03F3/21 ,  H02M3/07 ,  H03M1/66 ,  H03F3/189 ,  H03F3/24 ,  H03F3/68 ,  H02M3/158

Abstract: Systems, methods, and circuitries are provided for generating a power amplifier supply voltage based on a target envelope signal for a radio frequency (RF) transmit signal. An envelope tracking system includes a first selector circuitry and predistortion circuitry. The first selector circuitry is disposed in a selector module and is configured to input a plurality of voltages conducted on a first plurality of power lanes, wherein the first plurality of power lanes is part of a power distribution network; select a voltage from the plurality of voltages based on the target envelope signal; and provide the selected voltage to a supply lane connected to an input of the power amplifier that amplifies the RF transmit signal. The predistortion circuitry is configured to modify the RF transmit signal based on a selected power lane of the first plurality of power lanes that conducts the selected voltage.

公开(公告)号：US20160173030A1

公开(公告)日：2016-06-16

申请号：US14565617

申请日：2014-12-10

Applicant: Intel Corporation

Inventor： Andreas Langer ,  Simon Hughes

IPC: H03F1/02 ,  H03F3/21 ,  H03F3/19

CPC classification number: H03F1/0205 ,  H03F1/0222 ,  H03F1/30 ,  H03F1/56 ,  H03F3/19 ,  H03F3/195 ,  H03F3/21 ,  H03F3/245 ,  H03F2200/102 ,  H03F2200/171 ,  H03F2200/336 ,  H03F2200/387 ,  H03F2200/447 ,  H03F2200/451 ,  H03H7/40 ,  H03H11/30

Abstract: A tunable matching network is configured to couple at least one filter with a power amplifier that is configured to operate in an envelope tracking (ET) mode of operation over a transmit band. A control component is configured to detect a present set of operating conditions of the power amplifier when the power amplifier operates in the ET mode of operation. The present set of operating conditions comprises a present frequency of operation, and the control component is further configured to transmit a control signal to the tunable matching network in response to the detected present set of operating conditions. The tunable matching network is further configured to adjust an impedance of the tunable matching network in response to the transmitted control signal such that one or more ET characteristics are optimized based at least in part on the present set of operating conditions.

Abstract translation: 可配置匹配网络被配置为将至少一个滤波器与功率放大器耦合，功率放大器被配置为在发射频带上以包络跟踪（ET）操作模式操作。 控制部件被配置为当功率放大器在ET操作模式下操作时，检测功率放大器的当前工作状态集合。 当前的操作条件集合包括当前的操作频率，并且控制组件还被配置为响应于检测到的当前操作条件而将控制信号发送到可调谐匹配网络。 可调谐匹配网络还被配置为响应于所发送的控制信号来调整可调匹配网络的阻抗，使得至少部分地基于当前的操作条件集合优化一个或多个ET特性。