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1. 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。

2. 发明授权

US08350627B2 Hybrid class amplifier 有权
标题翻译：混合类放大器
公开(公告)号：US08350627B2
公开(公告)日：2013-01-08
申请号：US13061453
申请日：2008-09-01
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/04
CPC分类号： H03F3/16 , H03F1/0205 , H03F1/56 , H03F3/19 , H03F3/217
摘要： A power amplifier (10) configured to generate impedances at harmonic frequencies such that the power amplifier (10) operates in a class C mode in a low output amplitude range and in a class F or inverse F mode in a high output amplitude range.
摘要翻译：功率放大器（10），被配置为在谐波频率处产生阻抗，使得功率放大器（10）在低输出幅度范围内以及在高输出幅度范围内的F类或F模式中以C类模式工作。

3. 发明授权

US08305146B2 Multi stage amplifier 有权
标题翻译：多级放大器
公开(公告)号：US08305146B2
公开(公告)日：2012-11-06
申请号：US13141636
申请日：2008-12-22
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F3/602
摘要： A multi-stage amplifier includes a first, a second, and a third sub-amplifier, each with respective input and output ports. The multi-stage amplifier also includes a common output port. The output port of the second sub-amplifier is connected to the output port of the first sub-amplifier as well as to the common output port of the multi-stage amplifier, and the output port of the third sub-amplifier is connected to the common output port. The electrical lengths of the connections from the second sub-amplifier's output port both to the first amplifier's output port and to the common output port are longer or shorter than one quarter of a wavelength (λ) of the frequency for which the multi-stage amplifier is intended to operate.
摘要翻译：多级放大器包括具有各自的输入和输出端口的第一，第二和第三子放大器。多级放大器还包括一个公共输出端口。第二子放大器的输出端口连接到第一子放大器的输出端口以及多级放大器的公共输出端口，并且第三子放大器的输出端口连接到公共输出端口。从第二子放大器的输出端口到第一放大器的输出端口和公共输出端口的连接的电长度比多级放大器的频率的波长（λ）的四分之一长或短意图操作。

4. 发明申请

US20100019843A1 Method For Controlling A Linear Amplifier And Power Amplifier Arrangement 有权
标题翻译：用于控制线性放大器和功率放大器布置的方法
公开(公告)号：US20100019843A1
公开(公告)日：2010-01-28
申请号：US12374898
申请日：2006-07-24
申请人： Richard Hellberg , Tony Fondén
发明人： Richard Hellberg , Tony Fondén
IPC分类号： H03F3/68
CPC分类号： H03F1/0222 , H03F1/0288
摘要： The present invention relates to a method for controlling an amplifier unit having at least one drive signal input connection 1, at least one power supply voltage input connection 2 and an output connection 4. The amplifier unit comprises at least one amplifier, and the method comprises the steps of: feeding each amplifier by a drive signal from said at least one drive signal input connection 1, and feeding each amplifier by a power supply voltage from said at least one power supply voltage input connection, whereby said amplifier unit has defined output characteristics at the output connection 4 and a predetermined power supply voltage at a maximum RF output power for a RF signal. The method further comprises the steps of: operating at least one amplifier with RF output voltage characteristics to obtain a reduced shunt loss, compared to a reference shunt loss, at the output connection 4. The reference shunt loss is obtained when operating each amplifier as a class B amplifier having the defined output characteristics at the output connection 4 and the predetermined power supply voltage at a maximum RF output power for the RF signal, and modulating the power supply voltage to each amplifier to reduce excessive voltage drop over the amplifier.
摘要翻译：本发明涉及一种用于控制具有至少一个驱动信号输入连接1，至少一个电源电压输入连接2和输出连接4的放大器单元的方法。放大器单元包括至少一个放大器，该方法包括以下步骤：通过来自所述至少一个驱动信号输入连接1的驱动信号馈送每个放大器，并且通过来自所述至少一个电源电压输入连接的电源电压馈送每个放大器，由此所述放大器单元具有定义的输出特性在输出连接4处以及用于RF信号的最大RF输出功率的预定电源电压。该方法还包括以下步骤：在输出连接4处，与至少一个具有RF输出电压特性的放大器相比，以获得与参考并联损耗相比降低的分流损耗。当将每个放大器作为 B类放大器在输出连接4处具有限定的输出特性，并以RF信号的最大RF输出功率具有预定的电源电压，以及调制每个放大器的电源电压以减小放大器上的过大的电压降。

5. 发明申请

US20100008442A1 Method for Limiting Local Bandwidth Impairment Using Tone Reservation 有权
标题翻译：使用音调预约限制局部带宽损失的方法
公开(公告)号：US20100008442A1
公开(公告)日：2010-01-14
申请号：US12442776
申请日：2006-11-13
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H04B15/00 , H04B1/00 , H04B7/02
CPC分类号： H04L27/2618
摘要： The present invention relates to a method of limiting local bandwidth impairment in a telecommunications system, wherein tone reservation is used to reduce peak power of a multi-carrier signal using successive processing stages. The present invention also relates to an apparatus for limiting local bandwidth impairment and to a base station including such an apparatus. The method according to the present invention comprises the steps: generating a first peak reduction signal using reserved frequencies or tones of a first subset of frequencies or tones; generating a second peak reduction signal using reserved frequencies or tones of a second subset of frequencies or tones; extracting the In-phase components, I-components, of the first peak reduction signal and extracting the Quadrature components, Q-components, of the second peak reduction signal; and generating a third peak reduction signal by combining or adding, in the frequency domain, the I-components of the first peak reduction signal and the Q-components of the second peak reduction signal.
摘要翻译：本发明涉及一种在电信系统中限制局部带宽损害的方法，其中使用音调保留来减少使用连续处理阶段的多载波信号的峰值功率。本发明还涉及一种用于限制局部带宽损害的装置和一种包括这种装置的基站。根据本发明的方法包括以下步骤：使用频率或音调的第一子集的保留频率或音调产生第一峰值降低信号; 使用频率或音调的第二子集的保留频率或音调产生第二峰值降低信号; 提取第一峰值降低信号的同相分量I分量，并提取第二峰值降低信号的正交分量Q分量; 以及通过在频域中组合或相加第一峰值降低信号的I分量和第二峰值降低信号的Q分量来产生第三峰值降低信号。

6. 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。

7. 发明申请

US20080150774A1 Non-Linear Processing of Signals 失效
标题翻译：信号的非线性处理
公开(公告)号：US20080150774A1
公开(公告)日：2008-06-26
申请号：US11816961
申请日：2005-02-25
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03M1/00 , H03F1/00
CPC分类号： H03F1/32 , H03F1/0261 , H03F1/3276
摘要： In a non-linear processing system, the main non-linear processing and filtering is performed with low precision in a separate branch. A low-precision version (22) of the input signal (14) is created in an extractor (20), which is processed non-linearly in a low-precision non-linear processing unit (11) under constraints put on the non-linear processing. Quantisation errors or other artefacts, created by the use of low precision signals are finally removed by a precision restoring processing in a precision restoring unit (26) using the full-precision signal (14).
摘要翻译：在非线性处理系统中，在单独的分支中以低精度执行主非线性处理和滤波。在提取器（20）中创建输入信号（14）的低精度版本（22），该抽取器在非精确的非线性处理单元（11）中被非线性处理，线性处理。通过使用全精度信号（14）的精密恢复单元（26）中的精度恢复处理，最终消除了通过使用低精度信号产生的量化误差或其它伪影。

8. 发明申请

US20080146171A1 Generation of Modulated Radio Frequency Signals 有权
标题翻译：调制射频信号的产生
公开(公告)号：US20080146171A1
公开(公告)日：2008-06-19
申请号：US11722257
申请日：2004-12-21
申请人： Richard Hellberg , Tony Fonden
发明人： Richard Hellberg , Tony Fonden
IPC分类号： H04B1/04
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0222 , H03F2200/102
摘要： RF signal generators (1) are disclosed, having an amplitude-modulated amplifier (80) whose supply voltage (70) is a signal non-linearly filtered (33) dependent on a signal (30) being representative to an envelope signal of a desired output RF signal (81). The non-linear filtering (33) is performed preferably using an envelope-dependent boundary. An input RF signal (65) to the amplifier (80) is amplified using the supply voltage (70) to produce the desired output RF signal (81). The present invention also presents methods for driving such generators (1).
摘要翻译：公开了RF信号发生器（1），其具有幅度调制放大器（80），其幅度调制放大器（80）的电源电压（70）是取决于信号（30）的非线性滤波信号（30），该信号代表期望的输出RF信号（81）。非线性滤波（33）优选地使用包络依赖边界进行。使用电源电压（70）放大到放大器（80）的输入RF信号（65），以产生期望的输出RF信号（81）。本发明还提供了用于驱动这种发电机（1）的方法。

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

US07071774B2 Composite amplifier 有权
标题翻译：复合放大器
公开(公告)号：US07071774B2
公开(公告)日：2006-07-04
申请号：US10497186
申请日：2002-10-29
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/3294 , H03F1/0294 , H03F1/3282
摘要： A composite amplifier includes a first and a second power amplifier connected to a Chireix output network. A signal component separator and an IQ separator provide equal first and linear drive signal components that depends linearly on the amplitude A(t) of an amplitude modulated input signal. The signal component separator and IQ separator provide first and second nonlinear drive signal components that have the same magnitude but opposite signs and depend non-linearly as √1−A(t) on the amplitude A(t) and are in quadrature to the first and second linear drive signal components. Amplitude-phase adjusters individually adjust amplitudes and phases of the drive signal components to lower drive power consumption. Summers form a first composite drive signal to the first power amplifier by adding the adjusted first linear drive signal component to the adjusted first non-linear drive signal component a second composite drive signal to the second power amplifier by adding the adjusted second linear drive signal component to the adjusted second non-linear drive signal component.
摘要翻译：复合放大器包括连接到Chireix输出网络的第一和第二功率放大器。信号分量分离器和IQ分离器提供与调幅输入信号的振幅A（t）线性相关的相等的第一和线性驱动信号分量。信号分量分离器和IQ分离器提供具有相同幅度但相反符号的第一和第二非线性驱动信号分量，并且在振幅A（t）上作为√1-A（t）非线性地取向并且与第一和第二线性驱动信号分量。振幅相位调节器分别调节驱动信号分量的幅度和相位，以降低驱动功率。通过将调整后的第二线性驱动信号分量与调整后的第二线性驱动信号分量相加，将经调整的第一线性驱动信号分量与调整的第一非线性驱动信号分量相加，将第二复合驱动信号加到第二功率放大器，到调整后的第二非线性驱动信号分量。

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