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    • 2. 发明申请
    • MULTI-BAND RADIO-FREQUENCY DIGITAL PREDISTORTION
    • 多频无线电频率数字预测
    • WO2014188316A1
    • 2014-11-27
    • PCT/IB2014/061472
    • 2014-05-15
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • ROLLINS, Mark Edward
    • H03F1/32H03F3/24
    • H04B1/0475H03F1/3247H03F1/3252H03F1/3294H03F3/24H03F2200/111H03F2201/3203H04B2001/0425H04L25/08H04L27/368
    • Systems and methods for radio frequency digital predistortion in a multiband transmitter (72) are disclosed. In one embodiment, the multi-band transmitter includes a digital upconversion system (76) configured to digitally upconvert digital input signals to provide digital radio frequency signals. Each digital input signal and thus each digital radio frequency signal corresponds to a different band of a multi-band transmit signal to be transmitted by the multi-band transmitter (72). The multi-band transmitter (72) also includes a radio frequency digital predistortion system configured to digitally predistort the digital radio frequency signals to provide predistorted digital radio frequency signals, and a combiner (80) configured to combine the predistorted digital radio frequency signals to provide a multi-band predistorted digital radio frequency signal.
    • 公开了一种用于多频发射机(72)中的射频数字预失真的系统和方法。 在一个实施例中,多频带发射机包括数字上变频系统(76),其被配置为数字上变频数字输入信号以提供数字射频信号。 每个数字输入信号和每个数字射频信号对应于要由多频带发射机(72)传输的多频带发射信号的不同频带。 多频带发射机(72)还包括一个射频数字预失真系统,被配置为数字地预失真数字射频信号以提供预失真的数字射频信号,以及组合器(80),被配置为组合预失真的数字射频信号以提供 多频带预失真数字射频信号。
    • 4. 发明申请
    • N-WAY RF POWER AMPLIFIER CIRCUIT WITH INCREASED BACK-OFF CAPABILITY AND POWER ADDED EFFICIENCY USING UNEQUAL INPUT POWER DIVISION
    • N-WAY射频功率放大器电路具有增加的备用能力和使用不平均输入功率部分的功率增加效率
    • WO2004100215A2
    • 2004-11-18
    • PCT/US2004/011057
    • 2004-04-09
    • CREE MICROWAVE, INC.PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • PENGELLY, Raymond, SydneyWOOD, Simon, Maurice
    • H01L
    • H03F1/0288H03F1/0277H03F1/32H03F3/602H03F2200/451H03F2201/3203
    • An RF power amplifier circuit for amplifying an RF signal over a broad range of power with improved efficiency includes a carrier amplifier for amplifying an RF signal over a first range of power and with a power saturation level below the maximum of the broad range of power is disclosed. One or more peak amplifiers are connected in parallel with the carrier amplifier with each of the peak amplifiers being biased to sequentially provide an amplified output signal after the carrier amplifier approaches saturation. The input signal is applied through a signal splitter to the carrier amplifier and the plurality of peak amplifiers, and an output for receiving amplified output signals from the carrier amplifier and the plurality of peak amplifiers includes a resistive load R/2. The split input signal is applied through a 90° transformer to the carrier amplifier, and the outputs of the peak amplifiers are applied through 90° transformers to a output load. When operating below saturation, the carrier amplifier delivers power to a load of 2R when the carrier amplifier delivers current to the load, which is one-half the current at maximum power and the amplifier is saturated. The signal splitter can split the input signal power equally among the carrier and one or more peak amplifiers, or the input signal can be split unequally with the carrier amplifier receiving less input power than each of the peak amplifiers and vice versa.
    • 一种RF功率放大器电路,用于在提高效率的宽范围的功率范围内放大RF信号,包括载波放大器,用于在第一功率范围内放大RF信号,并且功率饱和电平低于功率范围宽度的最大值 披露。 一个或多个峰值放大器与载波放大器并联连接,其中每个峰值放大器被偏置以在载波放大器接近饱和之后依次提供放大的输出信号。 输入信号通过信号分离器施加到载波放大器和多个峰值放大器,并且用于从载波放大器和多个峰值放大器接收放大的输出信号的输出包括电阻负载R / 2。 分路输入信号通过90°变压器施加到载波放大器,峰值放大器的输出通过90°变压器施加到输出负载。 当运行低于饱和时,当载波放大器将电流传递到负载时,载波放大器将功率输送到2R的负载,负载是最大功率电流的一半,放大器饱和。 信号分配器可以在载波和一个或多个峰值放大器之间平均地分离输入信号功率,或者输入信号可以与载波放大器不相等地分离,其中每个峰值放大器接收的输入功率较小,反之亦然。
    • 5. 发明申请
    • SEQUENTIELLER BREITBANDIGER DOHERTY LEISTUNGSVERSTÄRKER MIT EINSTELLBAREM AUSGANGSLEITUNGS-BACK-OFF
    • 序贯宽带Doherty功放的可调输出LINE BACK-OFF
    • WO2015049272A1
    • 2015-04-09
    • PCT/EP2014/071015
    • 2014-10-01
    • RWTH AACHEN
    • NEGRA, RenatoNGHIEM, Xuan Anh
    • H03F1/02
    • H03F1/3205H03F1/0211H03F1/0288H03F3/193H03F3/211H03F3/245H03F2200/15H03F2200/451H03F2201/3203H03F2201/3233H03F2203/21103
    • Die Erfindung betrifft einen sequentiellen breitbandigen Doherty Leistungsverstärker mit einstellbarem Ausgangsleistungs-Back-Off. Der sequentielle breitbandige Doherty Leistungsverstärker weist mindestens einen Eingang (l 1 , l 2 ; RF in ) zur Entgegennahme von mindestens einem breitbandigen HF-Signal, wobei das breitbandige HF-Signal oder die breitbandigen HF-Signale (RF in ) zumindest ein mittleres Leistungsniveau (Carrier / Average) und ein Spitzenleistungsniveau (Peak) aufweisen, wobei das mittlere Leistungsniveau und das Spitzenleistungsniveau einen Crest-Faktor definieren, und einen ersten Verstärkerzweig zur Verstärkung des Eingangssignales, wobei der erste Verstärkerzweig im Wesentlichen die Verstärkung für niedrige und zumindest das mittlere Leistungsniveau bereitstellt, mindestens einen zweiten Verstärkerzweig zur Verstärkung des Eingangssignales auf, wobei der zweite Verstärkerzweig im Wesentlichen die Verstärkung für das Spitzenleistungsniveau bereitstellt, wobei der Ausgang des ersten Verstärkerzweiges über einen impedanzinverter (Z T ) mit dem Ausgang des zweiten Verstärkerzweiges verbunden ist, wobei die Verbindungsstelle (CN) im Wesentlichen unmittelbar impedanzangepaßt an die Last (Z 0 ) angeschlossen ist, wobei der erste und der zweite Verstärkerzweig jeweils über eine Versorgungsspannungszuführung verfügen, wobei zumindest eine der Versorgungsspannungszuführungen in Abhängigkeit des Crest-Faktors des zu verstärkenden Signals variabel ist, und wobei die Signallaufzeit durch die mindestens zwei Verstärkerzweige im Arbeitsbereich im Wesentlichen identisch ist.
    • 本发明涉及具有可调节输出功率回退顺序宽带的Doherty功率放大器。 顺序宽带的Doherty功率放大器包括至少一个输入(L1,L2; RFin的),用于接收至少一个宽带RF信号的,宽带RF信号或宽带RF信号(RFin的)至少的平均功率电平(载波/平均) 和峰值功率电平(峰值),其中,所述平均功率电平与峰值功率电平定义一个波峰因数,以及用于放大所述输入信号的第一放大器分支,所述第一放大器分支提供了基本上为低和至少平均功率电平,至少一个第二增益 用于放大所述输入信号,其中所述第二放大器路径提供基本上为峰值功率电平的增益,第一放大器分支的通过阻抗逆变器的输出(ZT)连接到所述第二放大器分支的输出放大器路径, 其中,所述关节(CN)基本上立即阻抗匹配被连接到负载(Z0),所述每个第一和第二放大器路径具有的电源电压供给,其中,所述电源电压供给线中的至少一个是可变的,这取决于信号的峰值因数被放大, 并且其中通过在所述工作区域中的至少两个放大器分支中的信号传输时间是基本相同的。
    • 7. 发明申请
    • AMPLIFIER APPARATUS AND METHOD
    • 放大器装置和方法
    • WO2015055242A1
    • 2015-04-23
    • PCT/EP2013/071631
    • 2013-10-16
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    • FAGER, ChristianÖZEN, Mustafa
    • H03F1/02
    • H03F1/32H03F1/0288H03F3/19H03F3/211H03F2200/451H03F2201/3203H03F2203/21142
    • An amplifier arrangement 100 for optimising efficiency at a peak power level and a back-off power level comprises a main power amplifier 105 provided in a main branch for receiving a first signal 103, the main power amplifier being configured to operate in a class-B mode of operation. An auxiliary power amplifier 106 is provided in an auxiliary branch for receiving a second signal 104, the auxiliary power amplifier being configured to operate in a class-C mode of operation. The main power amplifier 105 and the auxiliary power amplifier 106 are substantially matched in size. The first signal 103 and the second signal 104 have a phase offset value θ that is selected in relation to a particular back-off power level γ of operation, wherein 0
    • 用于在峰值功率电平和退避功率电平下优化效率的放大器装置100包括设置在主分支中用于接收第一信号103的主功率放大器105,主功率放大器被配置为在B类 操作模式。 辅助功率放大器106设置在辅助分支中用于接收第二信号104,辅助功率放大器被配置为在C类工作模式下工作。 主功率放大器105和辅助功率放大器106的尺寸基本匹配。 第一信号103和第二信号104具有相对于操作的特定退避功率电平γ选择的相位偏移值θ,其中0 <θ<180°。 组合网络107被配置为将主放大器105和辅助放大器106的输出信号108,109耦合到放大器装置的输出节点110,使得辅助功率放大器负载的输出调制主功率放大器的输出 。 组合网络107的电路元件值基于所选择的相移值θ和放大器布置被优化以用于效率的相关的退避功率电平γ导出。
    • 9. 发明申请
    • RF POWER AMPLIFIERS
    • 射频功率放大器
    • WO2007129118A1
    • 2007-11-15
    • PCT/GB2007/050238
    • 2007-05-04
    • ASTRIUM LIMITEDSEYMOUR, Christopher David
    • SEYMOUR, Christopher David
    • H03F1/32H03F1/02H03F3/24
    • H03F1/0244H03F1/0211H03F1/0222H03F1/0266H03F1/32H03F3/24H03F2200/105H03F2200/468H03F2201/3203
    • A Solid State Power Amplifier (SSPA) for powering a single element of a multi-element antenna, the SSPA comprising: an RF amplifier, having a signal amplifying path that includes preamplifier, driver amplifier (16) and a power output stage (18) an Electronic Power Conditioner (EPC) for providing a variable value of DC voltage for powering the power output stage (18) of the RF amplifier; a control ASIC (40) for receiving an input power signal (46) of the RF amplifier for providing a voltage control signal to the EPC to determine the value of the DC voltage, the control ASIC addressing an EEPROM (42) holding a collection of control words that define output values of a control output signal for varying values of said input power, such that the value of the DC voltage (36) to the power output stage (18) is varied so as to control the gain compression of the RF amplifier for varying values of input power in order to maintain constant amplifier linearity.
    • 一种固态放大器(SSPA),用于对多元件天线的单个元件供电,所述SSPA包括:具有包括前置放大器,驱动器放大器(16)和功率输出级(18)的信号放大路径的RF放大器, 电子功率调节器(EPC),用于提供用于为RF放大器的功率输出级(18)供电的DC电压的可变值; 控制ASIC(40),用于接收所述RF放大器的输入功率信号(46),用于向所述EPC提供电压控制信号以确定所述DC电压的值,所述控制ASIC寻址EEPROM(42),所述EEPROM(42) 控制字,其定义用于改变所述输入功率值的控制输出信号的输出值,使得到功率输出级(18)的DC电压(36)的值被改变,以便控制RF的增益压缩 放大器用于改变输入功率的值,以保持恒定的放大器线性度。
    • 10. 发明申请
    • N-WAY RF POWER AMPLIFIER CIRCUIT WITH INCREASED BACK-OFF CAPABILITY AND POWER ADDED EFFICIENCY USING UNEQUAL INPUT POWER DIVISION
    • N路RF功率放大器电路,使用不相等的输入功率分区,提高后退能力和功率增强效率
    • WO2004100215A3
    • 2004-12-23
    • PCT/US2004011057
    • 2004-04-09
    • CREE MICROWAVE INCPENGELLY RAYMOND SYDNEYWOOD SIMON MAURICE
    • PENGELLY RAYMOND SYDNEYWOOD SIMON MAURICE
    • H03F3/68B65D51/16B65D51/24H01L20060101H03F1/02H03F1/07H03F1/32H03F3/24H03F3/60
    • H03F1/0288H03F1/0277H03F1/32H03F3/602H03F2200/451H03F2201/3203
    • An RF power amplifier circuit for amplifying an RF signal over a broad range of power with improved efficiency includes a carrier amplifier for amplifying an RF signal over a first range of power and with a power saturation level below the maximum of the broad range of power is disclosed. One or more peak amplifiers are connected in parallel with the carrier amplifier with each of the peak amplifiers being biased to sequentially provide an amplified output signal after the carrier amplifier approaches saturation. The input signal is applied through a signal splitter to the carrier amplifier and the plurality of peak amplifiers, and an output for receiving amplified output signals from the carrier amplifier and the plurality of peak amplifiers includes a resistive load R/2. The split input signal is applied through a 90° transformer to the carrier amplifier, and the outputs of the peak amplifiers are applied through 90° transformers to a output load. When operating below saturation, the carrier amplifier delivers power to a load of 2R when the carrier amplifier delivers current to the load, which is one-half the current at maximum power and the amplifier is saturated. The signal splitter can split the input signal power equally among the carrier and one or more peak amplifiers, or the input signal can be split unequally with the carrier amplifier receiving less input power than each of the peak amplifiers and vice versa.
    • 用于以宽的功率范围放大RF信号并具有提高的效率的RF功率放大器电路包括用于在第一功率范围上放大RF信号的载波放大器,并且功率饱和电平低于宽范围功率的最大值 披露。 一个或多个峰值放大器与载波放大器并联连接,其中每个峰值放大器被偏置以在载波放大器接近饱和之后顺序地提供放大的输出信号。 输入信号通过信号分离器施加到载波放大器和多个峰值放大器,并且用于接收来自载波放大器和多个峰值放大器的放大输出信号的输出包括电阻负载R / 2。 分离输入信号通过90°变压器施加到载波放大器,峰值放大器的输出通过90°变压器施加到输出负载。 当工作在饱和以下时,当载波放大器向负载提供电流时,载波放大器为2R负载提供电源,这是最大功率下电流的一半,且放大器饱和。 信号分配器可以在载波和一个或多个峰值放大器之间均等地分配输入信号功率,或者输入信号可以不均匀地分配,其中载波放大器接收比每个峰值放大器更少的输入功率,反之亦然。