专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08238848B2 Feed forward noise reduction in a transmitter 有权
标题翻译：变送器前馈降噪
公开(公告)号：US08238848B2
公开(公告)日：2012-08-07
申请号：US12601944
申请日：2007-06-20
申请人： Richard Hellberg , Mats Klingberg , Joakim Plahn
发明人： Richard Hellberg , Mats Klingberg , Joakim Plahn
IPC分类号： H04B1/04 , H04K3/00
CPC分类号： H03F1/3223
摘要： A circuit (200, 400, 500, 600, 700) for use in a transmitter in a base station in a wireless cellular access system, comprising a main line with a first filter (210) arranged in the main line with an input side (220) and an output side (230) in the main line. The circuit additionally comprises a feed forward cancellation loop with a second filter (240), the cancellation loop also having an input point (250) and an output point (260). The cancellation loop is connected to the main line with the output point (260) of the cancelation loop being connected to the main line on the output side (230) of the first filter (210). Suitably, the first filter (210) i.e. the main line filter, is a bandpass filter.
摘要翻译：一种用于无线蜂窝接入系统中的基站中的发射机的电路（200,400,500,600,700），包括主线，所述主线具有布置在所述主线中的第一滤波器（210），所述第一滤波器具有输入侧（ 220）和主线路中的输出侧（230）。电路还包括具有第二滤波器（240）的前馈消除回路，消除回路还具有输入点（250）和输出点（260）。消除回路连接到主线，消除回路的输出点（260）连接到第一过滤器（210）的输出侧（230）上的主线。适当地，第一滤波器（210）即主线滤波器是带通滤波器。

2. 发明授权

US07893762B2 Efficient composite amplifier 有权
标题翻译：高效复合放大器
公开(公告)号：US07893762B2
公开(公告)日：2011-02-22
申请号：US12159735
申请日：2005-12-30
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/0288 , H03F3/24 , H03F3/602 , H03F2200/451 , H03F2200/543
摘要： A detuned composite amplifier includes a nonlinear drive function (22) that has a phase that varies with the composite amplifier output voltage amplitude. The nonlinear drive function (22) is configured to transform the output voltage transition point of the prior art into an extended output voltage transition region to increase the efficiency of the composite amplifier.
摘要翻译：失谐复合放大器包括非线性驱动功能（22），其具有随着复合放大器输出电压幅度而变化的相位。非线性驱动功能（22）被配置为将现有技术的输出电压转变点变换为扩展输出电压转换区域，以提高复合放大器的效率。

3. 发明授权

US07411449B2 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US07411449B2
公开(公告)日：2008-08-12
申请号：US10595169
申请日：2004-09-21
申请人： Mats Klingberg , Richard Hellberg
发明人： Mats Klingberg , Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F1/0288 , H03F3/24 , H03F3/602 , H03F2200/423 , H03F2200/451
摘要： A PAMELA-type of composite power amplifier is configured in such a way that a single power amplifier is operated at low output voltage amplitudes by prohibiting a pair of outphasing power amplifiers to produce any current. Preferably, at output voltage amplitudes above the maximum voltage of the single power amplifier is to be reached, the pair of outphasing power amplifiers is taken into operation providing currents phase shifted by substantially 180 degrees. When also the outphasing power amplifiers reach their maximum voltages, an outphasing operation is performed.
摘要翻译： PAMELA型复合功率放大器被配置为使得单个功率放大器通过禁止一对外相功率放大器产生任何电流以低输出电压幅度工作。优选地，在要达到单功率放大器的最大电压的输出电压幅度的情况下，该对外相功率放大器被投入运行，从而提供相移大致180度的电流。当外相功率放大器也达到其最大电压时，执行外相操作。

4. 发明授权

US07279971B2 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US07279971B2
公开(公告)日：2007-10-09
申请号：US10525957
申请日：2002-09-06
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F3/24 , H03F1/0294 , H03F3/602 , H03F2200/423 , H03F2200/451
摘要： A composite amplifier comprises several Chireix pairs (PA11, PA12; PA21, PA22) of power amplifiers connected to a common load. Means (21) are provided for driving each Chireix pair by drive signals having amplitude dependent phase over at least a part of the dynamic range of the composite amplifier . These parts are preferably different for different pairs.
摘要翻译：复合放大器包括连接到公共负载的功率放大器的几个Chireix对（PA 11，PA 12; PA 21，PA 22）。提供装置（21），用于通过在复合放大器的动态范围的至少一部分上具有幅度相关相位的驱动信号驱动每个Chireix对。对于不同的对，这些部件优选是不同的。

5. 发明授权

US07221219B2 Composite amplifier structure 有权
标题翻译：复合放大器结构
公开(公告)号：US07221219B2
公开(公告)日：2007-05-22
申请号：US10537986
申请日：2002-12-19
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0288 , H03F1/0294 , H03F3/24 , H03F3/60 , H03F3/602 , H03F3/604 , H03F2200/423 , H03F2200/543
摘要： A composite power amplifier structure includes a first power amplifier configured as an auxiliary amplifier of a Doherty amplifier and connected to an output node and an even number of further power amplifiers configured into at least one Chireix pair connected to the same output node. The Chireix pairs are driven at least partially in outphasing modes and the first power amplifier is driven in the same manner as the auxiliary amplifier of a Doherty amplifier.
摘要翻译：复合功率放大器结构包括配置为Doherty放大器的辅助放大器并连接到输出节点的第一功率放大器和配置成连接到相同输出节点的至少一个Chireix对的偶数个另外的功率放大器。 Chireix对至少部分地以非相模式驱动，第一功率放大器以与Doherty放大器的辅助放大器相同的方式驱动。

6. 发明申请

US20050248401A1 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US20050248401A1
公开(公告)日：2005-11-10
申请号：US10525957
申请日：2002-09-06
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F1/02 , H03F3/24 , H03F3/60 , H03F3/68
CPC分类号： H03F3/24 , H03F1/0294 , H03F3/602 , H03F2200/423 , H03F2200/451
摘要： A composite amplifier comprises several Chireix pairs (PAII, PAI2; PA21, PA22) of power amplifiers connected to a common load. Means (21) are provided for driving each Chireix pair by drive signals having amplitude dependent phase over at least a part of the dynamic range of the composite amplifier . These parts are preferably different for different pairs.
摘要翻译：复合放大器包括连接到公共负载的功率放大器的几个Chireix对（PAII，PAI 2; PA 21，PA 22）。提供装置（21），用于通过在复合放大器的动态范围的至少一部分上具有幅度相关相位的驱动信号驱动每个Chireix对。对于不同的对，这些部件优选是不同的。

7. 发明授权

US08917141B2 Radio frequency power amplifier circuit and method 有权
标题翻译：射频功率放大器电路及方法
公开(公告)号：US08917141B2
公开(公告)日：2014-12-23
申请号：US13505777
申请日：2012-04-10
申请人： Richard Hellberg , Tony Fonden , Mats Klingberg
发明人： Richard Hellberg , Tony Fonden , Mats Klingberg
IPC分类号： H03F3/68
CPC分类号： H03F3/211 , H03F1/0233 , H03F1/0288 , H03F3/193 , H03F2200/102 , H03F2200/451 , H03F2203/21106
摘要： An amplifier circuit is disclosed for providing a radio frequency output signal having a variable signal envelope, comprising a main amplifier device and an auxiliary amplifier and a combiner network for combining an output signal from said first amplifier device and a second output signal from said second amplifier device to provide a combined output signal of variable signal envelope to a load, and a signal processing circuit comprising an input and a non-linear processing section to provide at least said second radio frequency output signal with a signal envelope that has a non-linear dependency from an amplitude characteristic of the input signal such that the degree of non-linearity of the non-linear dependency varies dependent on the amount of change per time unit of the amplitude characteristic of the input signal. Further, a method of power amplifying a radio frequency signal having a variable signal envelope is disclosed.
摘要翻译：公开了一种用于提供具有可变信号包络的射频输出信号的放大器电路，包括主放大器装置和辅助放大器以及组合来自所述第一放大器装置的输出信号和来自所述第二放大器的第二输出信号的组合器网络用于向负载提供可变信号包络的组合输出信号的装置，以及包括输入和非线性处理部分的信号处理电路，用于向至少所述第二射频输出信号提供具有非线性的信号包络来自输入信号的幅度特性的依赖性，使得非线性依赖性的非线性度随输入信号的幅度特性的时间单位的变化量而变化。此外，公开了一种功率放大具有可变信号包络的射频信号的方法。

8. 发明申请

US20090021301A1 Efficient Composite Amplifier 有权
标题翻译：高效复合放大器
公开(公告)号：US20090021301A1
公开(公告)日：2009-01-22
申请号：US12159735
申请日：2005-12-30
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F1/32 , H03F3/68
CPC分类号： H03F1/0294 , H03F1/0288 , H03F3/24 , H03F3/602 , H03F2200/451 , H03F2200/543
摘要： A detuned composite amplifier includes a nonlinear drive function (22) that has a phase that varies with the composite amplifier output voltage amplitude. The nonlinear drive function (22) is configured to transform the output voltage transition point of the prior art into an extended output voltage transition region to increase the efficiency of the composite amplifier.
摘要翻译：失谐复合放大器包括非线性驱动功能（22），其具有随着复合放大器输出电压幅度而变化的相位。非线性驱动功能（22）被配置为将现有技术的输出电压转变点变换为扩展输出电压转换区域，以提高复合放大器的效率。

9. 发明申请

US20070182484A1 Adaptive predistortion method and arrangement 有权
标题翻译：自适应预失真方法和布置
公开(公告)号：US20070182484A1
公开(公告)日：2007-08-09
申请号：US11569034
申请日：2004-05-19
申请人： Tony Fonden , Richard Hellberg , Mats Klingberg
发明人： Tony Fonden , Richard Hellberg , Mats Klingberg
IPC分类号： H03F1/26
CPC分类号： H04B1/0475 , H03F1/3247 , H03F1/3294 , H03F2200/336 , H04B1/12 , H04B1/30 , H04L27/364 , H04L27/368 , H04L27/3863
摘要： An adaptive predistortion arrangement includes means (26, 40, 42, 44, 46) for up-converting a baseband signal (S1) into an intermediate frequency signal (S12) having frequency aliazing and means (18, 20, 220, 24, 26) for down-converting a radio frequency signal (S4) into an intermediate frequency signal (S7) having the same frequency aliazing as the up-converted baseband signal. An adapter (34) adapts predistortion parameters to keep the up-converted baseband signal equal to the down-converted radio frequency signal.
摘要翻译：自适应预失真装置包括用于将基带信号（S1）上变频为具有频率分散的中频信号（S12）的装置（26,40,42,44,46）和装置（18,20,22,24,44），26），用于将射频信号（S 4）下变频成具有与上转换的基带信号相同的频率分散的中频信号（S 7）。适配器（34）适应预失真参数以保持上转换的基带信号等于下变频射频信号。

10. 发明授权

US08442460B2 Method for compensating signal distortions in composite amplifiers 有权
标题翻译：用于补偿复合放大器信号失真的方法
公开(公告)号：US08442460B2
公开(公告)日：2013-05-14
申请号：US12296710
申请日：2006-04-10
申请人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
发明人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
IPC分类号： H04B1/04
CPC分类号： H03F1/26 , H03F1/0288 , H03F1/0294 , H03F1/3247 , H03F1/3252 , H03F1/3294 , H03F2200/228 , H03F2200/321 , H03F2200/336 , H03F2200/393 , H03F2200/78
摘要： A method for compensating signal distortions in multiple transmitting branches (3, 5; 43, 45, 46) entering a composite amplifier (1; 1′). According to the invention the method comprises the steps of: —providing (S1) one or more input signals (x) to the composite amplifier. —observing (S2) an output signal (z) from the composite amplifier (1; 1′) for each provided input signal; —deriving (S5) an error in each output signal (z) by comparing the output signal with an ideal output signal, said error being caused by said signal distortions; —deriving (S11) the individual contribution from each transmitting branch (3, 5; 43,45,46) to the error by utilizing a composite amplifier model, said composite amplifier model comprising information about the contribution from each constituent amplifier (23, 25; 103a,103b,103c) to the output signal for each provided input signal: —compensating the signal distortions in the transmitting branches (3, 5; 43,45,46) accordingly.
摘要翻译：一种用于补偿进入复合放大器（1; 1'）的多个发射分支（3,5; 43,45,46）中的信号失真的方法。根据本发明，该方法包括以下步骤：向复合放大器提供（S1）一个或多个输入信号（x）。对于每个提供的输入信号，从复合放大器（1; 1'）观察（S2）输出信号（z）通过将输出信号与理想输出信号进行比较，从而（S5）每个输出信号（z）中的误差，所述误差由所述信号失真引起; （S11）通过利用复合放大器模型将来自每个发射分支（3,5; 43,45,46）的各个贡献归因于所述误差，所述复合放大器模型包括关于来自每个组成放大器（23,25）的贡献的信息 ; 103a，103b，103c）输出到所提供的输入信号的输出信号： - 相应地补偿发送分支（3,5; 43,45,46）中的信号失真。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式