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81. 发明申请

US20040263246A1 MULTI-MODE MULTI-AMPLIFIER ARCHITECTURE 失效
标题翻译：多模式多放大器架构
公开(公告)号：US20040263246A1
公开(公告)日：2004-12-30
申请号：US10603682
申请日：2003-06-24
发明人： Ian Robinson , Frank Winter
IPC分类号： H03F003/68
CPC分类号： H03F1/0244 , H03F1/0288 , H03F1/3241 , H03F3/72 , H03F2200/198 , H03F2200/331
摘要： An amplification architecture or system is provided having a multiple amplifier system that switches modes of operation between operation in a component mode and a composite mode based on a characteristic of an input signal relative to a threshold level. In the component mode, the components of the input signal are employed to different terminals of the multiple amplifier system that provide a reconstructed amplified representation of the input signal. In the composite mode, the input signal is amplified to provide an amplified representation of the input signal.
摘要翻译：提供具有多放大器系统的放大架构或系统，该多放大器系统基于相对于阈值电平的输入信号的特性，在分量模式中的操作和复合模式之间切换操作模式。在分量模式中，输入信号的分量被用于提供输入信号的重构放大表示的多放大器系统的不同端子。在复合模式中，输入信号被放大以提供输入信号的放大表示。

82. 发明申请

US20040263242A1 Composite amplifier 有权
标题翻译：复合放大器
公开(公告)号：US20040263242A1
公开(公告)日：2004-12-30
申请号：US10497186
申请日：2004-05-28
发明人： Richard Hellberg
IPC分类号： H03F003/68
CPC分类号： H03F1/3294 , H03F1/0294 , H03F1/3282
摘要： A composite amplifier includes a first and a second power amplifier (16, 18) connected to a Chireix output network (20). Means (10, 22) provide equal first and linear drive signal components that depends linearly on the amplitude A(t) of an amplitude modulated input signal. Further means (10, 24)provide first and second nonlinear drive signal components that have the same magnitude but opposite signs and depend non-linearly as {square root}1-A(t) on the amplitude A(t) and are in quadrature to the first and second linear drive signal components. Means (26, 28, 30, 32) individually adjust amplitudes and phases of the drive signal components to lower drive power consumption. Means (34, 36) 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（20）的第一和第二功率放大器（16,18）。装置（10,22）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第二线性驱动信号分量。进一步的装置（10,24）提供第一和第二非线性驱动信号分量，其具有与幅度A（t）上的{平方根} 1-A（t）相同的量值但相反的符号并且非线性地取向并且正交到第一和第二线性驱动信号分量。装置（26,28,30,32）分别调节驱动信号分量的幅度和相位以降低驱动功率消耗。装置（34,36）通过将经调整的第一线性驱动信号分量与经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上，形成第一复合驱动信号给第一功率放大器，第二线性驱动信号分量到调整的第二非线性驱动信号分量。

83. 发明申请

US20040246055A1 Multicell amplifier & power divider/combiner employable in same 失效
标题翻译：多芯片放大器和功率分配器/组合器可以在同一个应用中使用
公开(公告)号：US20040246055A1
公开(公告)日：2004-12-09
申请号：US10482795
申请日：2004-07-16
发明人： Gill Hardial , Stefan Koch
IPC分类号： H03F003/68
CPC分类号： H01P5/12 , H03F3/604 , H03F3/607
摘要： A multicell amplifier comprises a first divider unit, which receives the input signal of the amplifier, divides it into 2N subsignals, amplifies them and recombines the amplified signals in two N-way combiners to form two local output signals; two further divider units which take the local output signals and divide them into 4N subsignals, amplify them and recombine the amplified signals to form three local output signals; and two combiner units which take the three local output signals and divide them into 4N subsignals, amplify them and recombine the amplified signals to provide the output signal of the amplifier.
摘要翻译：多单元放大器包括接收放大器的输入信号的第一除法器单元，将其分成2N个子信号，对它们进行放大并将两个N路组合器中的放大信号复合以形成两个本地输出信号; 两个另外的分频器单元，取本地输出信号并将其分为4N子信号，放大并重组放大的信号以形成三个本地输出信号; 和两个组合器单元，其取三个本地输出信号并将其分成4N个子信号，放大并重新组合放大的信号以提供放大器的输出信号。

84. 发明申请

US20040224648A1 Efficiency of power amplifers in devices using transmit beamforming 有权
标题翻译：功率放大器在使用发射波束成形的器件中的效率
公开(公告)号：US20040224648A1
公开(公告)日：2004-11-11
申请号：US10867249
申请日：2004-06-14
发明人： Gary L. Sugar , Chandra Vaidyanathan , Sifen Luo
IPC分类号： H04B001/02 , H03F003/68 , H04B001/04
CPC分类号： H04W52/42 , H01Q3/28 , H03G3/3042 , H03G3/3089 , H04B1/0483 , H04B7/0615 , H04B7/0617 , H04B7/0669 , H04B7/0845 , H04B7/0857 , H04L27/2601
摘要： Systems and methods for optimizing the efficiency of each of a plurality of power amplifiers that amplify a corresponding one of a plurality of radio frequency signals for transmission by a corresponding one of a plurality of antennas. Using transmit beamforming, the power of each amplified signal output by the power amplifiers may not be the same for all the power amplifiers, and may vary with changes in the communication channel between the transmitting device and receiving device. Each of the plurality of power amplifiers is controlled to operate with one or more operating parameters that optimize the efficiency for an output power level of corresponding ones of the radio frequency signals. By adjusting one or more operating parameters of each power amplifier according to changing requirements (e.g., the destination device and channel conditions), the efficiency of each power amplifier can be optimized. Consequently, one or more of the power amplifiers are operated with one or more operating parameters that reflects the output power actually needed for the corresponding radio frequency signal to be transmitted.
摘要翻译：用于优化多个功率放大器中的每一个功率放大器的效率的系统和方法，其放大多个射频信号中的相应一个，用于由多个天线中的相应一个发射。使用发射波束形成，由功率放大器输出的每个放大信号的功率对于所有功率放大器可能不相同，并且可以随着发射装置和接收装置之间的通信信道的变化而变化。多个功率放大器中的每一个被控制为利用一个或多个操作参数进行操作，该操作参数优化对应的一个射频信号的输出功率电平的效率。通过根据变化的要求（例如，目的地设备和信道条件）调整每个功率放大器的一个或多个操作参数，可以优化每个功率放大器的效率。因此，一个或多个功率放大器通过一个或多个反映要发射的相应射频信号实际需要的输出功率的工作参数来操作。

85. 发明申请

US20040222848A1 Balanced radio frequency power amplifier with temperature compensation 有权
标题翻译：平衡射频功率放大器，具有温度补偿功能
公开(公告)号：US20040222848A1
公开(公告)日：2004-11-11
申请号：US10431688
申请日：2003-05-08
发明人： Chuming David Shih , Ahmad Khanifar , Nikolai Maslennikov , Richard Sweeney
IPC分类号： H03F003/68
CPC分类号： H03F3/602 , H03F1/30 , H03F2200/15 , H03F2200/18
摘要： A radio frequency power amplifier has first and second amplifier transistors. The first and second amplifier transistors have a common element thereof electrically interconnected with a common bus. A forked conductor having two legs thereof electrically connected to the common bus, each leg having a distal end proximate one of the first and second amplifier transistors. The common bus and the forked conductor are generally symmetric about an axis about which the first and second amplifier transistors are symmetrically disposed.
摘要翻译：射频功率放大器具有第一和第二放大器晶体管。第一和第二放大器晶体管具有与公共总线电互连的公共元件。一种分叉导体，其两个腿部电连接到公共总线，每个支腿具有靠近第一和第二放大器晶体管之一的远端。公共总线和分叉导体通常对称关于第一和第二放大器晶体管对称布置的轴。

86. 发明申请

US20040189380A1 High efficiency amplifier 有权
标题翻译：高效放大器
公开(公告)号：US20040189380A1
公开(公告)日：2004-09-30
申请号：US10402800
申请日：2003-03-28
申请人： Andrew Corporation
发明人： Robert E. Myer , Koon Whye Loh , Loren Francis Root , Edward Vincent Louis
IPC分类号： H03F003/68
CPC分类号： H03F1/0288 , H03F1/0266 , H03F3/602 , H03F2200/18 , H03F2200/198
摘要： An amplifier includes a main amplifier circuit and at least one auxiliary amplifier circuit. Portions of an RF signal to be amplified are delivered to the main and auxiliary amplifiers. The auxiliary amplifier circuit is selectively operable to operate in combination with the main amplifier circuit, such as based on the level of the RF signal. At least one hybrid coupler circuit has input ports coupled with outputs of the main amplifier circuit and auxiliary amplifier circuit. The hybrid coupler circuit is operable to combine amplifier circuit output signals at a coupler first output port. A coupler second output port is terminated with one of an electrical short and an electrical open circuit.
摘要翻译：放大器包括主放大器电路和至少一个辅助放大器电路。要放大的RF信号的一部分被传送到主放大器和辅助放大器。辅助放大器电路可选择性地操作以与主放大器电路组合操作，例如基于RF信号的电平。至少一个混合耦合器电路具有与主放大器电路和辅助放大器电路的输出耦合的输入端口。混合耦合器电路可操作以在耦合器第一输出端口处组合放大器电路输出信号。耦合器第二输出端口用电短路和电开路中的一个端接。

87. 发明申请

US20040130398A1 Ultra wide band low noise amplifier and method 失效
标题翻译：超宽带低噪声放大器及方法
公开(公告)号：US20040130398A1
公开(公告)日：2004-07-08
申请号：US10336341
申请日：2003-01-02
申请人： Intel Corporation
发明人： Luiz M. Franca-Neto
IPC分类号： H03F003/68
CPC分类号： H03F3/211 , H03F3/193 , H03F2200/294 , H03F2200/372 , H03F2200/72
摘要： An ultra wide band (UWB) low noise amplifier (LNA) includes a common-gate (CG) amplifying element in cascode with a common-source (CS) amplifying element, and a load-tracking (LT) network to, at least in part, track a changing output impedance of the cascode helping to provide a substantially constant gain over an ultra wide frequency band of interest. The LT network may include of a parallel combination of a capacitive element, an inductive element, and a resistive element, which may be selected to, at least in part, track the changing output impedance of the cascode over an ultra wide frequency band. An initial common-gate stage may compensate for a capacitive input impedance of the cascode and may provide a substantially matched antenna input over the ultra wide frequency band. The amplifier may also include one or more resistor-based amplifying stages after the cascode.
摘要翻译：超宽带（UWB）低噪声放大器（LNA）包括与共源（CS）放大元件和负载跟踪（LT）网络共源共栅的共栅（CG）放大元件，至少在跟踪变化的共源共栅的输出阻抗，有助于在感兴趣的超宽频带上提供基本恒定的增益。 LT网络可以包括电容元件，电感元件和电阻元件的并联组合，其可以被选择为至少部分地在超宽频带上跟踪共源共栅的变化的输出阻抗。初始共栅极级可以补偿共源共栅的电容性输入阻抗，并且可以在超宽频带上提供基本匹配的天线输入。放大器还可以包括在共源共栅之后的一个或多个基于电阻的放大级。

88. 发明申请

US20040085132A1 RF transistor amplifier linearity using suppressed third order transconductance 有权
标题翻译： RF晶体管放大器使用抑制三阶跨导的线性度
公开(公告)号：US20040085132A1
公开(公告)日：2004-05-06
申请号：US10289734
申请日：2002-11-06
申请人： Cree Microwave, Inc.
发明人： Raymond Sydney Pengelly , Simon Maurice Wood , John Phillip Quinn
IPC分类号： H03F003/68
CPC分类号： H03F3/602 , H03F1/3205 , H03F3/211
摘要： The linearity of a transistor amplifier comprising a plurality of transistors operating parallel is improved by reducing the odd order transconductance derivatives of signals generated by the transistors. The transistors can be provided in groups with each group having a different bias voltage applied thereto or each group of transistors can have a different input signal applied thereto. The groups of transistors can have different physical parameters such as the width to length ratio of gates in field effect transistors and threshold voltages for the transistors.
摘要翻译：通过减少由晶体管产生的信号的奇数阶跨导导数，包括多个并联工作的晶体管的晶体管放大器的线性度得到改善。可以分组地提供晶体管，每个组具有施加到其上的不同的偏置电压，或者每组晶体管可以具有施加到其上的不同的输入信号。晶体管组可以具有不同的物理参数，例如场效应晶体管中的栅极的宽度与长度之比以及晶体管的阈值电压。

89. 发明申请

US20040075503A1 Power amplifier and communication apparatus 失效
标题翻译：功率放大器及通讯装置
公开(公告)号：US20040075503A1
公开(公告)日：2004-04-22
申请号：US10450634
申请日：2003-11-07
发明人： Naoki Komatsu , Toru Matsuura , Hiroshi Isono , Kaoru Ishida
IPC分类号： H03F003/68
CPC分类号： H03F3/19 , H03F3/602 , H03F3/68 , H03F3/72 , H03F2200/429 , H03F2203/7209 , H03F2203/7236 , H03F2203/7239
摘要： A power amplifier of amplifying signals of two frequency bands is reduced in size and improved in efficiency at low output. The power amplifier includes an input terminal, a branch circuit and so on having one input and a plurality of outputs, the input being connected to the input terminal, amplifying means which are connected to some outputs of the branch circuit and so on and are operated at different signal frequencies from each other, a transmission line connected to one of the other outputs of the branch circuit, a synthesizing circuit connected to the outputs of the amplifying means and the output from the transmission line, a switch provided between the transmission line and a synthesis output unit, and a control circuit of controlling conduction of the branch circuit and so on, conduction and an amplifying operation of the amplifying means, and conduction of the switch.
摘要翻译：放大两个频带信号的功率放大器的尺寸减小，并且在低输出时效率得到改善。功率放大器包括具有一个输入和多个输出的输入端子，分支电路等，输入端连接到输入端子，放大装置连接到分支电路的某些输出等并被操作在彼此不同的信号频率处，连接到分支电路的其他输出之一的传输线，连接到放大装置的输出和来自传输线的输出的合成电路，设置在传输线和合成输出单元，以及控制分支电路的导通等的控制电路，放大装置的导通和放大操作以及开关的导通。

90. 发明申请

US20040075492A1 Chireix architecture using low impedance amplifiers 有权
公开(公告)号：US20040075492A1
公开(公告)日：2004-04-22
申请号：US10272725
申请日：2002-10-16
申请人： J.S. Wight, Inc. , IceFyre Semiconductor Corporation
发明人： James Stuart Wight
IPC分类号： H03F003/68
CPC分类号： H03F3/217 , H03C1/50 , H03F1/0294 , H03F3/211 , H03F3/602 , H03F2200/537 , H03F2200/541 , H03F2203/21157
摘要： Circuits and methods for use in amplifying amplitude and phase modulated signals. A circuit uses a combiner with dual parallel signal amplifiers feeding it. The signal amplifiers have a low output impedance while the combiner does not provide any isolation between its inputs from the signal amplifiers. As in other Chireix architectures, the signals from the signal amplifiers are phase modulated prior to being fed to the combiner. The combiner then combines these two signals and, depending on how these two signals are combined, the resulting output of the combiner is amplitude modulated. The signal amplifiers may be Class D or Class F amplifiers to provide high efficiency amplification of the signals.

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