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    • 91. 发明申请
    • ARCHITECTURE AND THE TRAINING METHOD OF A PA DPD SYSTEM WITH SPACE MAPPING APPLIED IN THE PREDISTORTER
    • 建筑与PA DPD系统的训练方法与空间映射应用于预测器
    • WO2013136226A1
    • 2013-09-19
    • PCT/IB2013/051754
    • 2013-03-05
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • BAI, Chunlong
    • H03F1/32H04L27/36
    • H03F1/3247H03F2201/3227H04L27/368
    • Systems and methods are disclosed for compensating for non-linearity of a power amplifier using space mapping based predistortion. In one embodiment, a transmitter includes a power amplifier that amplifies a power amplifier input signal, a predistorter that effects predistortion of the power amplifier input signal to compensate for a non-linear characteristic of the power amplifier using a space mapping based model of an inverse of the non-linear characteristic of the power amplifier, and an adaptation sub-system that adaptively configures the space mapping based model of the non-linear characteristic of the power amplifier. In one embodiment, the adaptation sub-system adaptively configures a space mapping based model of the non-linear characteristic of the power amplifier and adaptively configures the space mapping based model of the inverse of the non-linear characteristic of the power amplifier based on the space mapping based model of the non-linear characteristic of the power amplifier.
    • 公开了用于补偿使用基于空间映射的预失真的功率放大器的非线性度的系统和方法。 在一个实施例中,发射机包括放大功率放大器输入信号的功率放大器,预失真器,其利用功率放大器输入信号的预失真来补偿功率放大器的非线性特性,使用基于空间映射的反相模型 功率放大器的非线性特性的自适应子系统,以及自适应地配置基于功率放大器的非线性特性的基于空间映射的模型的自适应子系统。 在一个实施例中,自适应子系统自适应地配置基于功率放大器的非线性特性的基于空间映射的模型,并且基于功率放大器的非线性特性的逆的自相应自适应地配置基于空间映射的模型 基于空间映射的功率放大器非线性特性模型。
    • 93. 发明申请
    • 電力増幅回路
    • 功率放大电路
    • WO2013108677A1
    • 2013-07-25
    • PCT/JP2013/050156
    • 2013-01-09
    • 株式会社村田製作所
    • 齋藤賢志
    • H03F1/32H03F3/24
    • H03F1/32H03F1/565H03F3/189H03F3/24H03F2200/111
    • 電力増幅回路(10)は、パワーアンプ(11)、マルチバンドアイソレータ(12)、トラップ回路(13)を備える。トラップ回路(13)は、電力増幅回路(10)の出力端とグランドとの間に接続されている。トラップ回路(13)は、インダクタ(131)とキャパシタ(132)の直列回路を備える。キャパシタ(132)には、キャパシタ(133)とスイッチ素子(134)との直列回路からなるトラップ周波数切替用回路が、並列接続されている。第1送信信号を出力する場合、スイッチ素子(134)を開放にする。第2送信信号を出力する場合、スイッチ素子(134)を短絡にする。
    • 提供了配备有功率放大器(11),多频带隔离器(12)和陷波电路(13)的功率放大电路(10)。 陷波电路(13)连接在功率放大电路(10)的输出端子和地之间。 陷波电路(13)配备有由电感器(131)和电容器(132)构成的串联电路。 由电容器(133)和开关元件(134)的串联电路构成的陷波频率切换电路并联连接到电容器(132)。 当输出第一传输信号时,开关元件(134)被打开。 当输出第二传输信号时,开关元件(134)关闭。
    • 96. 发明申请
    • CONTROL SYSTEM FOR A POWER AMPLIFIER
    • 功率放大器的控制系统
    • WO2013053557A1
    • 2013-04-18
    • PCT/EP2012/067779
    • 2012-09-12
    • ASTRIUM LIMITEDGOSS, Martin
    • GOSS, Martin
    • H03F1/32H03F1/34
    • H03G1/0017H03F1/3241H03F1/3247H03F1/3282H03F1/345H03F3/19H03F3/21H03F2200/405H03F2200/438H03F2200/451H03F2200/66H03F2201/3233
    • An apparatus for controlling the gain and phase of an input signal input to a power amplifier comprises a gain control loop configured to control the gain of the input signal based on power levels of the input signal and an amplified signal output by the power amplifier, to obtain a predetermined gain of the amplified signal, and a phase control loop configured to obtain an error signal related to a phase difference between a first signal derived from the input and a second signal derived from the amplified signal, and control the phase based on the error signal, to obtain a predetermined phase of the amplified signal. The phase control loop is arranged to delay the first signal before obtaining the error signal, such that the delayed first signal and the second signal used to obtain the error signal correspond to the same part of the input signal. The gain control loop may compare a power of a third signal derived from the input signal and a power of a fourth signal derived from the amplified signal. The third and fourth signals may be output by first and second couplers, which may have coupling factors that are selected such that the third and fourth signals have the same power level when the amplified signal has the predetermined gain. The current gain and phase of the amplified signal may be dependent on an operational history of the power amplifier, which may be a GaN power amplifier, and the apparatus and power amplifier may be included in a satellite. In another embodiment, a satellite includes a power amplifier control system that uses a feed-forward control loop to control both the gain and phase of a signal input to the power amplifier.
    • 用于控制输入到功率放大器的输入信号的增益和相位的装置包括:增益控制回路,被配置为基于输入信号的功率电平和由功率放大器输出的放大信号来控制输入信号的增益, 获得放大信号的预定增益,以及相位控制回路,其被配置为获得与从输入导出的第一信号和从放大信号导出的第二信号之间的相位差相关的误差信号,并且基于 误差信号,以获得放大信号的预定相位。 相位控制环路被布置成在获得误差信号之前延迟第一信号,使得用于获得误差信号的延迟的第一信号和第二信号对应于输入信号的相同部分。 增益控制环路可以比较从输入信号导出的第三信号的功率和从放大信号导出的第四信号的功率。 第三和第四信号可以由第一和第二耦合器输出,第一和第二耦合器可以具有选择的耦合因子,使得当放大的信号具有预定的增益时,第三和第四信号具有相同的功率电平。 放大信号的当前增益和相位可以取决于功率放大器的操作历史,功率放大器可以是GaN功率放大器,并且该装置和功率放大器可以被包括在卫星中。 在另一个实施例中,卫星包括功率放大器控制系统,其使用前馈控制环来控制输入到功率放大器的信号的增益和相位。
    • 98. 发明申请
    • SPLIT VCC AND COMMON VCC POWER MANAGEMENT ARCHITECTURE FOR ENVELOPE TRACKING
    • 分离VCC和通用VCC电源管理架构进行包络跟踪
    • WO2013033700A1
    • 2013-03-07
    • PCT/US2012/053654
    • 2012-09-04
    • RF MICRO DEVICES, INC.
    • KHLAT, NadimKAY, Michael R.GORISSE, Philippe
    • H03F1/32H03F1/02H03F3/195H03F3/24H04B17/00H03G3/00H03G3/30
    • H03G1/00H03F1/0227
    • An envelope tracking power supply and transmitter control circuitry are disclosed. The transmitter control circuitry receives a first envelope power supply control signal and a second envelope power supply control signal. The envelope tracking power supply operates in one of a group of operating modes, which includes a first operating mode and a second operating mode. During both the first operating mode and the second operating mode, a first envelope power supply signal is provided to a driver stage based on the first envelope power supply control signal. During the first operating mode, a second envelope power supply signal is provided to a final stage based on the first envelope power supply control signal. However, during the second operating mode, the second envelope power supply signal is provided to the final stage based on the second envelope power supply control signal.
    • 公开了一种包络跟踪电源和发射机控制电路。 发射机控制电路接收第一包络电源控制信号和第二包络电源控制信号。 信封跟踪电源以包括第一操作模式和第二操作模式的一组操作模式中的一种操作。 在第一操作模式和第二操作模式期间,基于第一包络电源控制信号将第一包络电源信号提供给驱动器级。 在第一操作模式期间,第二包络电源信号基于第一包络电源控制信号提供到最后级。 然而,在第二操作模式期间,第二包络电源信号基于第二包络电源控制信号提供到最后级。
    • 100. 发明申请
    • MODIFIED SWITCHING RIPPLE FOR ENVELOPE TRACKING SYSTEM
    • 改进的开关跟踪系统
    • WO2013012787A2
    • 2013-01-24
    • PCT/US2012/046887
    • 2012-07-16
    • RF MICRO DEVICES, INC.
    • KHLAT, NadimKAY, Michael, R.
    • H03F1/32
    • H04B1/0475H03F1/0227H03F1/305
    • Radio frequency (RF) transmitter circuitry, which includes an RF power amplifier (PA) and an envelope tracking power supply, is disclosed. The RF PA receives and amplifies an RF input signal to provide an RF transmit signal using an envelope power supply signal. The envelope tracking power supply provides the envelope power supply signal, which has switching ripple. Further, the envelope tracking power supply operates in either a normal switching ripple mode or a modified switching ripple mode, such that during the normal switching ripple mode, the envelope power supply signal has normal switching ripple, and during the modified switching ripple mode, the envelope power supply signal has modified switching ripple. When the modified switching ripple is required, the envelope tracking power supply operates in the modified switching ripple mode.
    • 公开了包括RF功率放大器(PA)和包络跟踪电源的射频(RF)发射机电路。 RF PA接收并放大RF输入信号,以使用包络电源信号提供RF发射信号。 信封跟踪电源提供具有开关纹波的信封电源信号。 此外,包络跟踪电源以正常开关纹波模式或修改的开关纹波模式工作,使得在正常开关纹波模式期间,包络电源信号具有正常的开关纹波,并且在修改的开关纹波模式期间, 信号电源信号改变了开关纹波。 当需要修改的开关纹波时,包络跟踪电源以修改的开关纹波模式运行。