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91. 发明申请

US20040056722A1 ULTRA BROADBAND LOW NOISE AMPLIFIER WITH MATCHED REACTIVE INPUT IMPEDANCE 有权
标题翻译：超声波低噪声放大器，具有匹配的反应输入阻抗
公开(公告)号：US20040056722A1
公开(公告)日：2004-03-25
申请号：US10280420
申请日：2002-10-25
发明人： Sehat Sutardja
IPC分类号： H03F003/68
CPC分类号： H03F1/34 , H03F1/48 , H03F1/56 , H03F2200/222 , H03F2200/294 , H03F2200/372 , H03F2200/39
摘要： A low noise amplifier (LNA) for amplifying an input signal communicated over a transmission line having an impedance. The LNA includes a current sensing amplifier having an input to connect to the transmission line. The current sensing amplifier has an input impedance that matches the transmission line impedance. The current sensing amplifier amplifies the input signal to generate a first output signal. A voltage sensing amplifier receives the input signal and generates a second output signal. A combiner combines the first output signal and the second output signal to generate an LNA output signal.
摘要翻译：一种用于放大在具有阻抗的传输线上传送的输入信号的低噪声放大器（LNA）。 LNA包括具有连接到传输线的输入端的电流感测放大器。电流感测放大器具有与传输线阻抗匹配的输入阻抗。电流感测放大器放大输入信号以产生第一输出信号。电压感测放大器接收输入信号并产生第二输出信号。组合器组合第一输出信号和第二输出信号以产生LNA输出信号。

92. 发明申请

US20040041632A1 Reconfigurable broadband active power splitter ditto power combiner and ditto bidirectional power splitter/power combiner and circuits based on these 失效
标题翻译：可重配置的宽带有功功率分配器与电力组合器和双向功率分配器/功率组合器和电路基于这些
公开(公告)号：US20040041632A1
公开(公告)日：2004-03-04
申请号：US10416504
申请日：2003-05-20
发明人： Aziz Ouacha
IPC分类号： H03F003/68
CPC分类号： H03F3/607 , H01P5/04 , H01Q3/26
摘要： The present invention relates to a distribution network which is an active power splitter 1 to 2 (FC1A) or active power combiner 2 to 1 (FC1B) or alternatingly can be such a power splitter and such a power combiner, said power splitter consisting of two distributed amplifiers with a common input and one output each, and said power combiner consisting of two distributed amplifiers with one input each and a common output. For said power splitter, a switching element (ST1, . . . , STN; ST'1, . . . , ST'N) is connected between each connection point on the outputs of the amplifying elements and earth, and for said power combiner, a switching element (ST1, . . . , STN; ST'1, . . . , ST'N) is connected between each connection point on the inputs of the amplifying elements and earth, said switching elements being optimised to take, depending on a control voltage, one of two distinct states. A first corresponding to a capacitance (Coff) and a second state corresponding to a low impedance short circuit (Ron). This implies that when the control voltage is high for a distributed amplifier, i.e. half a power splitter or power combiner, this amplifier transmits power, and, when the control voltage is low for a distributed amplifier, this amplifier does not transmit power. The invention also relates to a multifunctional broadband electronically steered phased array system comprising at least one power splitter or power combiner as stated above.
摘要翻译：本发明涉及作为有功功率分配器1至2（FC1A）或有源功率组合器2至1（FC1B）的配电网络，或交替地可以是这样的功率分配器和这样的功率组合器，所述功率分配器由两个具有公共输入和一个输出的分布式放大器，并且所述功率组合器由两个具有一个输入的分布式放大器和一个公共输出组成。对于所述功率分配器，开关元件（ST1，...，STN; ST'1，...，ST'N）连接在放大元件的输出和地之间的每个连接点之间，并且用于所述功率组合器，将开关元件（ST1，...，STN; ST'1，...，ST'N）连接在放大元件和地之间的每个连接点之间，所述开关元件被优化为取决于在一个控制电压上，两个不同的状态之一。 A对应于对应于低阻抗短路（Ron）的电容（Coff）和第二状态。这意味着当分布式放大器（即功率分配器或功率组合器的一半）的控制电压较高时，该放大器传输功率，并且当分布式放大器的控制电压为低时，该放大器不发射功率。本发明还涉及如上所述的包括至少一个功率分配器或功率组合器的多功能宽带电子转向相控阵列系统。

93. 发明申请

US20040041627A1 Doherty amplifier 有权
标题翻译：多赫蒂放大器
公开(公告)号：US20040041627A1
公开(公告)日：2004-03-04
申请号：US10445042
申请日：2003-05-27
申请人： Pohang University of Science and Technology Foundation
发明人： Bumman Kim , Youngoo Yang , Jeonghyeon Cha
IPC分类号： H03F003/68
CPC分类号： H03F1/0288 , H03F1/0266
摘要： A so-called microwave Doherty amplifier is provided. The microwave Doherty amplifier employs a way-extension method by which N ways (Nnull2 N is a natural number) are established, and an envelope tracking method so that high efficiency and linearity of the power amplifier of a mobile communications base station or a handset can be achieved and price competitiveness and reliability of an apparatus employing the Doherty amplifier can be improved. The Doherty amplifier comprises N ways, where Nnull2 and N is a natural number; a carrier amplifier which is placed on one of the N ways; peak amplifiers which are placed on respective ways of the (Nnull1 ways excluding the way on which the carrier amplifier is placed; a power distribution unit which distributes power to each of the N ways; and a quarter wave impedance transformer at which the N ways meet.
摘要翻译：提供所谓的微波Doherty放大器。微波Doherty放大器采用N路（N> = 2 N是自然数）建立的方式扩展方法，以及包络跟踪方法，使得移动通信基站的功率放大器的高效率和线性度可以实现手机，并且可以提高使用Doherty放大器的装置的价格竞争力和可靠性。多赫蒂放大器包括N路，其中N> = 2，N是自然数; 放置在N路之一上的载波放大器; 峰值放大器放置在除了放置载波放大器的方式之外的（N-1种方式）的各种方式上;将功率分配给N路中的每一种的功率分配单元;以及四分之一波阻抗变压器，其中N 方式相遇。

94. 发明申请

US20040012438A1 Circuit configuration for controlling load-dependent driver strengths 有权
标题翻译：用于控制负载相关驱动器优势的电路配置
公开(公告)号：US20040012438A1
公开(公告)日：2004-01-22
申请号：US10619014
申请日：2003-07-11
发明人： Stephan Schroder , Joerg Vollrath
IPC分类号： H03F001/14 , H03F003/68
CPC分类号： H03K19/018585 , H03F3/211 , H03F3/45475 , H03K19/00384
摘要： A circuit configuration has a first driver stage for feeding in an input signal and for outputting an amplified signal. A second driver stage, which is connected in parallel with the first driver stage, is fed, on the input side, both the input signal and a control signal from a reference circuit connected upstream. The reference circuit compares the feedback level of an output signal, which level is present at one of its inputs, with the level of the input signal present at its other input and generates the control signal for driving the driver stage in the event that the level of the output signal is lower than the level of the input signal. As a result, the driver stage is connected for additional amplification of the input signal.
摘要翻译：电路配置具有用于馈送输入信号并输出放大信号的第一驱动级。与第一驱动级并联连接的第二驱动级在输入侧馈送输入信号和来自上游连接的参考电路的控制信号。参考电路将输出信号的一个输入信号的反馈电平与存在于其另一个输入端的输入信号的电平进行比较，并产生用于驱动驱动级的控制信号，的输出信号低于输入信号的电平。结果，连接驱动级以进一步放大输入信号。

95. 发明申请

US20030201833A1 N-way RF power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division 有权
标题翻译： N路RF功率放大器电路具有增加的退避能力和使用不等输入功率分配的功率附加效率
公开(公告)号：US20030201833A1
公开(公告)日：2003-10-30
申请号：US10430461
申请日：2003-05-05
申请人： Cree Microwave, Inc.
发明人： Raymond Sydney Pengelly , Simon Maurice Wood
IPC分类号： H03F003/68
CPC分类号： H03F1/0288 , H03F1/0277 , H03F1/32 , H03F3/602 , H03F2200/451 , H03F2201/3203
摘要： 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 90null transformer to the carrier amplifier, and the outputs of the peak amplifiers are applied through 90null 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.
摘要翻译：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输到负载时，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。信号分离器可以在载波和一个或多个峰值放大器之间平均分割输入信号功率，或者输入信号可以与载波放大器不相等地分配，而不是每个峰值放大器接收较少的输入功率，反之亦然。

96. 发明申请

US20030184383A1 Distributed amplifier 失效
标题翻译：分布式放大器
公开(公告)号：US20030184383A1
公开(公告)日：2003-10-02
申请号：US10259893
申请日：2002-09-30
发明人： Yasunori Ogawa
IPC分类号： H03F003/60 , H03F003/68
CPC分类号： H03F3/607
摘要： A distributed amplifier having a plurality of cascode amplifying circuits, and which causes little deterioration of the output waveform. In a preferred embodiment, the source potentials of the source-grounded transistors of the respective amplifying circuits are set individually. The source potentials of none or one or more of the source-grounded transistors are set at null0.8 volts, and the source potentials of the remaining source-grounded transistors are set at zero volts. The voltage gain of the source-grounded transistors whose source potential is null0.8 volts is zero, so that these source-grounded transistors do not contribute to the voltage gain of the amplifier as a whole. The source-grounded transistors whose source potential is zero volts contribute to the voltage gain, and output an amplified signal with a good waveform. The magnitude of the voltage gain can be adjusted by setting the number of source-grounded transistors whose source potential is zero volts.
摘要翻译：具有多个共源共栅放大电路的分布式放大器，其输出波形的劣化很小。在优选实施例中，分别设置各个放大电路的源极接地晶体管的源极电位。源极接地晶体管中的一个或多个源极电位被设置为+0.8伏，而剩余的源极接地晶体管的源极电位被设置为零伏特。源极电压为+0.8伏特的源极接地晶体管的电压增益为零，因此这些源极接地晶体管对整个放大器的电压增益没有贡献。源极电位为零伏特的源极接地晶体管有助于电压增益，并输出具有良好波形的放大信号。可以通过设置源极电位为零伏的源极接地晶体管的数量来调节电压增益的幅度。

97. 发明申请

US20030169107A1 Method and system for proportional plus integral loop compensation using a hybrid of switched capacitor and linear amplifiers 审中-公开
标题翻译：使用开关电容和线性放大器混合的比例积分环路补偿的方法和系统
公开(公告)号：US20030169107A1
公开(公告)日：2003-09-11
申请号：US10274429
申请日：2002-10-17
发明人： Robert LeChevalier
IPC分类号： H03F003/68
CPC分类号： G09G3/3216 , G09G3/3283 , G09G2310/0248 , G09G2310/0251 , G09G2320/0223 , G09G2320/029
摘要： A proportional plus integral compensation network employs a combination of linear components and switched capacitor components so as to reduce the physical size of the components required to implement the network. The compensation network comprises a linear, proportional amplifier, an integrator, in parallel with the amplifier, having a switched capacitor as a resistive element, and a summing element to combine the output signals of the amplifier and the integrator to provide a stable, amplified feedback signal.
摘要翻译：比例积分补偿网络采用线性分量和开关电容器组件的组合，以减少实现网络所需组件的物理尺寸。补偿网络包括线性比例放大器，与放大器并联的积分器，具有作为电阻元件的开关电容器，以及将放大器和积分器的输出信号组合以提供稳定的放大反馈的求和元件信号。

98. 发明申请

US20030160659A1 Transimpedance amplifier 有权
标题翻译：互阻放大器
公开(公告)号：US20030160659A1
公开(公告)日：2003-08-28
申请号：US10372012
申请日：2003-02-21
申请人： Infineon Technologies AG
发明人： Jaafar Mejri
IPC分类号： H03F003/68
CPC分类号： H03F3/08
摘要： Transimpedance amplifier having an input stage (1) to which an input current to be amplified is fed and an output stage (2) which outputs an output voltage (uo) corresponding to the amplified input current. By means of a current control circuit (4) the current (Ic) flowing through the amplifying element (Q1) of the input stage (1) is detected and controlled in such a way that said current is independent of the ambient temperature and of the supply voltage (Vcc). To detect the current (Ic) a dummy transimpedance amplifier (5) is used in combination with a current mirror circuit (6), the current (Ic) being controlled in that the control voltage (Uc) of a further transistor (Qc) coupled to the amplifying element (Q1) configured as a transistor is adjusted accordingly.
摘要翻译：具有输入级（1）的互阻放大器，输入要放大的输入电流被馈送到输出级（2），输出级（2）输出与放大的输入电流对应的输出电压（uo）。通过电流控制电路（4），流过输入级（1）的放大元件（Q1）的电流（Ic）被检测和控制，使得所述电流独立于环境温度和电源电压（Vcc）。为了检测电流（Ic），将虚拟跨阻抗放大器（5）与电流镜电路（6）组合使用，电流（Ic）被控制为另一个晶体管（Qc）的控制电压（Uc）被耦合相应地调整配置为晶体管的放大元件（Q1）。

99. 发明申请

US20030076167A1 Multistage doherty amplifier 审中-公开
标题翻译：多级多功能放大器
公开(公告)号：US20030076167A1
公开(公告)日：2003-04-24
申请号：US10310065
申请日：2002-12-05
发明人： Richard Hellberg
IPC分类号： H03F003/68
CPC分类号： H03F1/0288
摘要： A multistage Doherty amplifier is provided with separate drive amplifiers (DR4-DR5) for individual power amplifier (PA4-PA5) and/or separate drive amplifiers (DR) for groups of power amplifiers (PA1-PA3). This makes it possible to make significant improvements in efficiency and linearity by optimizing the drive for the different power amplifiers and using only a minimum of drive power.
摘要翻译：多级Doherty放大器为单个功率放大器（PA4-PA5）和/或功率放大器组（PA1-PA3）的单独驱动放大器（DR）提供单独的驱动放大器（DR4-DR5）。这使得通过优化不同功率放大器的驱动并仅使用最小的驱动功率，可以显着提高效率和线性度。

100. 发明申请

US20030052739A1 Method and apparatus for a multi-pole bandwidth enhancement technique for wideband amplification 失效
标题翻译：用于宽带放大的多极带宽增强技术的方法和装置
公开(公告)号：US20030052739A1
公开(公告)日：2003-03-20
申请号：US10213551
申请日：2002-08-06
发明人： Behnam Analui , Seyed-Ali Hajimiri
IPC分类号： H03F003/68 , H03F001/14
CPC分类号： H03F1/42 , H03F1/086 , H03F2200/36
摘要： The gain-bandwidth (GBW) limitation problem inherent in all amplifiers is overcome to provide wideband amplifiers with specified characteristics for the transfer function. Parasitic capacitances of transistors are absorbed or incorporated into the design of the passive networks, which are inserted between the gain stages of the amplifier. The component values are determined based on conventional low-pass filter structures. A prototype CMOS transimpedance amplifier implemented using the developed technique achieves over 9 GHz bandwidth and 54 dB transimpedance gain from a 0.5 pF photo-diode capacitance.
摘要翻译：克服所有放大器固有的增益带宽（GBW）限制问题，为传输功能提供具有指定特性的宽带放大器。晶体管的寄生电容被吸收或并入到被放大器的增益级之间的无源网络的设计中。基于传统的低通滤波器结构确定分量值。使用开发技术实现的原型CMOS跨阻抗放大器实现了超过9 GHz的带宽和0.5 pF光电二极管电容的54 dB跨阻抗增益。

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