公开(公告)号：US08625820B2

公开(公告)日：2014-01-07

申请号：US12742665

申请日：2007-11-16

Applicant: Ludovic Oddoart ,  Gerhard Trauth ,  Jean-Luc Charlet

Inventor： Ludovic Oddoart ,  Gerhard Trauth ,  Jean-Luc Charlet

IPC: H03F99/00 ,  H04R5/00

CPC classification number: H03F3/68 ,  H03F3/181 ,  H03F3/217 ,  H03F2200/03 ,  H03F2201/3206 ,  H04R5/04 ,  H04R2460/03

Abstract: An amplifier circuit which, includes a first input for receiving a first input signal and a second input for receiving a second input signal. A first amplifier section is connected to the first input and the second input is present. The first amplifier section can combine the first signal and the second signal into a first combined signal, the first amplifier being connected to a first output, for outputting the first combined signal. A second amplifier section is connected to the first input and the second input, for combining the first signal and the second signal into a second combined signal, the second amplifier being connected to a second output, for outputting the second combined signal. A common mode section is connected to the first input and the second input, for generating a common mode signal based on a combination of the first signal and the second signal and outputting the common mode signal at a common output connected to the common mode amplifier. The first combined signal, the second combined signal and the common mode signal satisfy the condition that combining the first combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the first input signal and combining the second combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the second input signal.

Abstract translation: 一种放大器电路，包括用于接收第一输入信号的第一输入端和用于接收第二输入信号的第二输入端。 第一放大器部分连接到第一输入端并且存在第二输入端。 第一放大器部分可以将第一信号和第二信号组合成第一组合信号，第一放大器连接到第一输出端，​​用于输出第一组合信号。 第二放大器部分连接到第一输入端和第二输入端，用于将第一信号和第二信号组合为第二组合信号，第二放大器连接到第二输出端，用于输出第二组合信号。 共模部分连接到第一输入端和第二输入端，用于基于第一信号和第二信号的组合产生共模信号，并在连接到共模放大器的公共输出端输出共模信号。 第一组合信号，第二组合信号和共模信号满足组合第一组合信号和共模信号的条件，其结果是具有与第一输入信号的幅度成比例的幅度的信号，并组合第二组合信号 并且共模信号产生具有与第二输入信号的振幅成比例的幅度的信号。

公开(公告)号：US20110158081A1

公开(公告)日：2011-06-30

申请号：US12928933

申请日：2010-12-21

Applicant: Chengxun Wang ,  Shawn Patrick Stapleton

Inventor： Chengxun Wang ,  Shawn Patrick Stapleton

IPC: H04J3/10

CPC classification number: H03F1/304 ,  H03F1/3241 ,  H03F1/3247 ,  H03F1/3258 ,  H03F3/087 ,  H03F3/19 ,  H03F3/24 ,  H03F2200/18 ,  H03F2200/204 ,  H03F2200/207 ,  H03F2200/447 ,  H03F2200/451 ,  H03F2201/3206 ,  H03F2201/3209 ,  H03F2201/3212 ,  H03F2201/3215 ,  H03F2201/3224 ,  H03F2201/3227 ,  H04L25/067 ,  H04L25/08 ,  H04L27/0008 ,  H04L27/368 ,  H04W24/02

Abstract: A remote radio head unit (RRU) system for multiple operating frequency bands, multi-channels, driven by a single or more wide band power amplifiers. More specifically, the present invention enables multiple-bands RRU to use fewer power amplifers in order to reduce size and cost of the multi-band RRU. The present invention is based on the method of using duplexers and/or interference cancellation system technique to increase the isolation between the transmitter signal and receiver signal of the RRU.

Abstract translation: 用于多个工作频带的远程无线电头单元（RRU）系统，由多个单个或多个宽带功率放大器驱动的多通道。 更具体地，本发明使得多频带RRU能够使用更少的功率放大器，以便减少多频带RRU的尺寸和成本。 本发明基于使用双工器和/或干扰消除系统技术来增加RRU的发射机信号和接收机信号之间的隔离的方法。

公开(公告)号：US20100272293A1

公开(公告)日：2010-10-28

申请号：US12742665

申请日：2007-11-16

Applicant: Ludovic Oddoart ,  Gerhard Trauth ,  Jean-Luc Charlet

Inventor： Ludovic Oddoart ,  Gerhard Trauth ,  Jean-Luc Charlet

IPC: H03F99/00 ,  H03F3/68

CPC classification number: H03F3/68 ,  H03F3/181 ,  H03F3/217 ,  H03F2200/03 ,  H03F2201/3206 ,  H04R5/04 ,  H04R2460/03

Abstract: An amplifier circuit which, includes a first input for receiving a first input signal and a second input for receiving a second input signal. A first amplifier section is connected to the first input and the second input is present. The first amplifier section can combine the first signal and the second signal into a first combined signal, the first amplifier being connected to a first output, for outputting the first combined signal. A second amplifier section is connected to the first input and the second input, for combining the first signal and the second signal into a second combined signal, the second amplifier being connected to a second output, for outputting the second combined signal. A common mode section is connected to the first input and the second input, for generating a common mode signal based on a combination of the first signal and the second signal and outputting the common mode signal at a common output connected to the common mode amplifier. The first combined signal, the second combined signal and the common mode signal satisfy the condition that combining the first combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the first input signal and combining the second combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the second input signal.

Abstract translation: 一种放大器电路，包括用于接收第一输入信号的第一输入端和用于接收第二输入信号的第二输入端。 第一放大器部分连接到第一输入端并且存在第二输入端。 第一放大器部分可以将第一信号和第二信号组合成第一组合信号，第一放大器连接到第一输出端，​​用于输出第一组合信号。 第二放大器部分连接到第一输入端和第二输入端，用于将第一信号和第二信号组合为第二组合信号，第二放大器连接到第二输出端，用于输出第二组合信号。 共模部分连接到第一输入端和第二输入端，用于基于第一信号和第二信号的组合产生共模信号，并在连接到共模放大器的公共输出端输出共模信号。 第一组合信号，第二组合信号和共模信号满足组合第一组合信号和共模信号的条件，其结果是具有与第一输入信号的幅度成比例的幅度的信号，并组合第二组合信号 并且共模信号产生具有与第二输入信号的振幅成比例的幅度的信号。

公开(公告)号：US20100073085A1

公开(公告)日：2010-03-25

申请号：US12629225

申请日：2009-12-02

Applicant: David F. SORRELLS ,  Gregory S. RAWLINS ,  Michael W. RAWLINS

Inventor： David F. SORRELLS ,  Gregory S. RAWLINS ,  Michael W. RAWLINS

IPC: H03F3/68

CPC classification number: H03F1/02 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0294 ,  H03F1/32 ,  H03F3/211 ,  H03F3/24 ,  H03F3/38 ,  H03F2200/102 ,  H03F2201/3206 ,  H03G3/3042 ,  H04B1/04

Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

Abstract translation: 本文公开了用于矢量组合功率放大的方法和系统。 在一个实施例中，多个信号被单独放大，然后相加以形成期望的时变复包络信号。 控制一个或多个信号的相位和/或频率特性以提供期望的时变复包络信号的期望的相位，频率和/或幅度特性。 在另一个实施例中，时变复包络信号被分解为多个恒定包络分量信号。 构成信号被均等地或基本相等地放大，然后相加以构建原始时变包络信号的放大版本。 实施例还执行上变频。

公开(公告)号：US07561856B2

公开(公告)日：2009-07-14

申请号：US10840700

申请日：2004-05-06

Applicant: Masayuki Watabe ,  Yasuhito Funyu ,  Hiroaki Abe ,  Hisato Kawano

Inventor： Masayuki Watabe ,  Yasuhito Funyu ,  Hiroaki Abe ,  Hisato Kawano

IPC: H04B1/04

CPC classification number: H03F1/3247 ,  H03F1/3294 ,  H03F2201/3206 ,  H03F2201/3233 ,  H04B1/707 ,  H04L27/368

Abstract: In a network employing code division multiplex access, a distortion compensation amplifying apparatus is provided which is capable of making quick response to carry out the distortion compensation with high accuracy even if the signal power to be inputted thereto varies rapidly. In this distortion compensation amplifying apparatus, the renewal of a distortion compensation coefficient in a renewing unit is complemented on the basis of a result of amplification in an amplifier with respect to a signal code-division-multiplexed in a pseudo-signal multiplexing unit.

Abstract translation: 在采用码分复用接入的网络中，提供了一种失真补偿放大装置，其能够进行快速响应，即使要输入的信号功率迅速变化，也能够以高精度执行失真补偿。 在该失真补偿放大装置中，相对于在伪信号复用部中的信号码分解多路复用的放大器的放大结果，对更新单元中的失真补偿系数的更新进行补充。

公开(公告)号：US07423477B2

公开(公告)日：2008-09-09

申请号：US11699044

申请日：2007-01-29

Applicant: David F. Sorrells ,  Gregory S. Rawlins ,  Michael W. Rawlins

Inventor： David F. Sorrells ,  Gregory S. Rawlins ,  Michael W. Rawlins

IPC: G01R19/00

CPC classification number: H03F1/02 ,  H03F1/0205 ,  H03F1/0211 ,  H03F1/0261 ,  H03F1/0294 ,  H03F1/32 ,  H03F3/211 ,  H03F3/24 ,  H03F3/38 ,  H03F2200/102 ,  H03F2201/3206 ,  H03G3/3042 ,  H04B1/04

Abstract: Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled to provide the desired phase, frequency, and/or amplitude characteristics of the desired time-varying complex envelope signal. In another embodiment, a time-varying complex envelope signal is decomposed into a plurality of constant envelope constituent signals. The constituent signals are amplified equally or substantially equally, and then summed to construct an amplified version of the original time-varying envelope signal. Embodiments also perform frequency up-conversion.

公开(公告)号：US07250813B1

公开(公告)日：2007-07-31

申请号：US11256033

申请日：2005-10-21

Applicant: Jianguo Yao

Inventor： Jianguo Yao

IPC: H03F1/02

CPC classification number: H03F1/083 ,  H03F1/3211 ,  H03F3/005 ,  H03F3/45183 ,  H03F3/45475 ,  H03F2201/3206 ,  H03F2203/45134 ,  H03F2203/45362 ,  H03F2203/45366

Abstract: An amplifier circuit includes a first amplifier and a second amplifier and sets of switching devices controlled by a bistate control signal. The bistate control signal is in the first state to cause the first and second sets of switching devices to configure the first amplifier and the second amplifier in a positive parallel configuration and the bistate control signal is in the second state to cause the first and second sets of switching devices to configure the first amplifier and the second amplifier in a negative parallel configuration. When the bistate control signal switches states at each sample cycle of the amplifier circuit, the first amplifier and the second amplifier toggle between the positive parallel configuration and the negative parallel configurations to cancel out crosstalk signals stored at the positive and negative input terminals of the first and second amplifier circuit.

Abstract translation: 放大器电路包括第一放大器和第二放大器以及由双稳态控制信号控制的一组开关器件。 双稳态控制信号处于第一状态以使第一和第二组开关器件以正并联配置来配置第一放大器和第二放大器，并且双向控制信号处于第二状态以使第一和第二组 的开关器件以将第一放大器和第二放大器配置为负并联配置。 当双稳态控制信号在放大器电路的每个采样周期切换状态时，第一放大器和第二放大器在正并联配置和负并联配置之间切换以消除存储在第一和第二放大器的正和负输入端的串扰信号 和第二放大电路。

公开(公告)号：US06741128B2

公开(公告)日：2004-05-25

申请号：US10131131

申请日：2002-04-25

Applicant: Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

Inventor： Yoichi Okubo ,  Kiyoshi Funada ,  Masaki Suto ,  Masato Horaguchi ,  Toshio Takada ,  Naoki Hongo

IPC: H03F126

CPC classification number: H03F1/3247 ,  H03F1/3205 ,  H03F1/3282 ,  H03F1/3288 ,  H03F2200/102 ,  H03F2201/3206 ,  H03F2201/3233

Abstract: There is provided a distortion canceling circuit for reducing an unbalance between a higher and a lower 3rd order distortion at frequencies of (2·f2−f1) and (2·f1−f2), respectively, the distortions being generated by an amplifier which amplifies an input signal having at least two frequency components, i.e., f1 and f2. Phase modulation control means supply a control signal, which has a difference frequency of (f2−f1), to phase modulation means, the control signal being generated based on the amplified input signal outputted from the amplifier. The phase modulation means performs phase modulation on the amplified input signal based on the supplied control signal to thereby generate a higher and a lower side-band signal having frequencies of (2·f2−f1) and (2·f1−f2), respectively, each of which has an identical amplitude and a phase difference of 180° with respect to each other. The distortion canceling circuit reduces the unbalance by using the side-band signals.

Abstract translation: 提供了一种用于减小在（2.f2-f1）和（2.f1-f2）频率处的较高和较低三阶失真之间的不平衡的失真消除电路，失真是由放大器 具有至少两个频率分量的输入信号，即f1和f2。 相位调制控制装置将具有差分频率（f2-f1）的控制信号提供给相位调制装置，该控制信号是根据从放大器输出的放大输入信号产生的。 相位调制装置基于所提供的控制信号对放大的输入信号执行相位调制，从而分别产生频率为（2.f2-f1）和（2.f1-f2）的较高和较低的边带信号 ，其中的每一个具有相同的振幅和相对于彼此为180°的相位差。 失真消除电路通过使用边带信号来减少不平衡。

公开(公告)号：US20020021764A1

公开(公告)日：2002-02-21

申请号：US09887481

申请日：2001-06-22

Inventor： Harri Posti

IPC: H04L025/03

CPC classification number: H04L27/368 ,  H03F1/3247 ,  H03F1/3282 ,  H03F2201/3206 ,  H03F2201/3233 ,  H04B1/04 ,  H04B1/62

Abstract: A multi frequency carrier transmitter comprises input means for receiving a plurality of different digital signals to be transmitted. The different signals are to be transmitted on different carrier frequencies. Amplifier means receive a composite signal comprising the different signals at the respective carrier frequencies and amplify the composite signal. Predistortion means predistort the plurality of digital signals prior to amplification of the composite signal by the amplification means. The predistortion provided by the predistortion means is subsequently altered in dependence on the difference between the input signals and the output at the amplifier means.

Abstract translation: 一种多频载波发射机，包括用于接收多个不同数字信号的输入装置。 不同的信号将在不同的载波频率上传输。 放大器装置接收包含各载波频率的不同信号的复合信号并放大复合信号。 预失真意味着在放大装置对复合信号进行放大之前预失真多个数字信号。 预失真装置提供的预失真随后根据输入信号和放大器装置的输出之间的差异而改变。

公开(公告)号：US06275685B1

公开(公告)日：2001-08-14

申请号：US09209386

申请日：1998-12-10

Applicant: David N Wessel ,  John D McNicol ,  Howard J Smith

Inventor： David N Wessel ,  John D McNicol ,  Howard J Smith

IPC: H01Q1112

CPC classification number: H03F1/3282 ,  H03F1/3247 ,  H03F2200/102 ,  H03F2201/3206 ,  H03F2201/3233

Abstract: This invention relates to high power linear amplifiers. A high power linear amplifier is disclosed for communications such as CDMA communication systems. In accordance with the invention, there is provided a power amplifier comprising a power amplifier, a feedback circuit and a control element; wherein the architecture proposed uses an envelope detector to generate a baseband signal representing the amplitude envelope of the system input RF signal. This is digitised and used to generate phase and gain correction signals. The correction signals modulate the input signal to create a pre-distorted signal: which is applied to the power amplifier for amplification. The pre-distortion is such as to cancel the AM-AM and AM-PM distortion of the power amplifier thus resulting in an amplified output of improved spectral purity. In order to achieve the very high levels of spectral purity required by 3G cellular and multi-carrier 2G cellular systems, the correction coefficients in the lookup table need to be very precisely set. The method proposed incorporates an adaptation system whereby the pre-distorter can ‘learn’ the contents of the lookup table as it operates.

Abstract translation: 本发明涉及高功率线性放大器。 公开了用于诸如CDMA通信系统的通信的高功率线性放大器。 根据本发明，提供了一种功率放大器，包括功率放大器，反馈电路和控制元件; 其中所提出的架构使用包络检测器来产生表示系统输入RF信号的幅度包络的基带信号。 它被数字化并用于产生相位和增益校正信号。 校正信号调制输入信号以产生预失真信号：其被施加到功率放大器用于放大。 预失真是消除功率放大器的AM-AM和AM-PM失真，从而导致放大的输出具有改进的光谱纯度。 为了实现3G蜂窝和多载波2G蜂窝系统所需的非常高水平的频谱纯度，查询表中的校正系数需要非常精确地设置。 所提出的方法包括一种适配系统，借此预先输入器可以在学习操作时查找表的内容。