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51. 发明申请

US20110285461A1 MOBILE TERMINAL AND METHOD OF CONTROLLING A DRIVING VOLTAGE OF A POWER AMPLIFIER THEREIN 有权
标题翻译：移动终端及其控制功率放大器驱动电压的方法
公开(公告)号：US20110285461A1
公开(公告)日：2011-11-24
申请号：US13041280
申请日：2011-03-04
申请人： Won Heo , Jonghun Kwon , Hungchol Chin
发明人： Won Heo , Jonghun Kwon , Hungchol Chin
IPC分类号： H03G3/20
CPC分类号： H03F3/24 , H03F1/02 , H03F1/0227 , H03F1/0238 , H03F2200/105 , H03F2200/504 , H03G3/004 , H03G3/3042 , H04B2001/0416 , H04B2001/045
摘要： A mobile terminal and method of controlling a driving voltage of a power amplifier therein are provided. The present invention includes a power amplifier module having a plurality of operative modes, the power amplifier module configured to amplify a power strength of an RF signal, a modem configured to deliver the RF signal to the power amplifier module, and to control the operative modes of the power amplifier module, a power detecting unit configured to output a reference voltage by detecting the power strength of the RF signal outputted from the power amplifier module, and a DC/DC converter configured to supply a driving voltage to the power amplifier module by adjusting a detected power value according to a gain corresponding to each of the operative modes of the power amplifier module.
摘要翻译：提供了一种控制功率放大器的驱动电压的移动终端和方法。本发明包括具有多个操作模式的功率放大器模块，功率放大器模块被配置为放大RF信号的功率强度，被配置为将RF信号传送到功率放大器模块的调制解调器，以及控制操作模式功率检测单元，被配置为通过检测从功率放大器模块输出的RF信号的功率强度来输出参考电压;以及DC / DC转换器，被配置为通过以下方式将功率放大器模块的驱动电压提供给功率放大器模块根据与功率放大器模块的每个操作模式对应的增益来调整检测到的功率值。

52. 发明授权

US07990220B2 RF power amplifier 有权
标题翻译：射频功率放大器
公开(公告)号：US07990220B2
公开(公告)日：2011-08-02
申请号：US12575494
申请日：2009-10-08
申请人： Masao Kondo , Yoshikuni Matsunaga , Kenta Seki , Satoshi Sakurai
发明人： Masao Kondo , Yoshikuni Matsunaga , Kenta Seki , Satoshi Sakurai
IPC分类号： H03F3/26
CPC分类号： H03F3/193 , H01L2224/0603 , H01L2224/48091 , H01L2224/48227 , H01L2224/49111 , H03F1/0272 , H03F1/565 , H03F3/195 , H03F3/21 , H03F3/245 , H03F3/26 , H03F3/265 , H03F3/45179 , H03F3/45475 , H03F3/68 , H03F2200/105 , H03F2200/222 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03F2200/465 , H03F2200/534 , H03F2200/541 , H03F2203/45481 , H03F2203/45544 , H03F2203/45621 , H03F2203/45631 , H03F2203/45731 , H01L2924/00014
摘要： A reduction is achieved in the primary-side input impedance of a transformer (voltage transformer) as an output matching circuit without involving a reduction in Q-factor. An RF power amplifier includes transistors, and a transformer as the output matching circuit. The transformer has a primary coil and a secondary coil which are magnetically coupled to each other. To the input terminals of the transistors, respective input signals are supplied. The primary coil is coupled to each of the output terminals of the transistors. From the secondary coil, an output signal is generated. The primary coil includes a first coil and a second coil which are coupled in parallel between the respective output terminals of the transistors, and each magnetically coupled to the secondary coil. By the parallel coupling of the first and second coils of the primary coil, the input impedance of the primary coil is reduced.
摘要翻译：在作为输出匹配电路的变压器（电压互感器）的初级侧输入阻抗中实现减小，而不涉及Q因子的降低。 RF功率放大器包括晶体管和变压器作为输出匹配电路。变压器具有彼此磁耦合的初级线圈和次级线圈。对于晶体管的输入端，提供相应的输入信号。初级线圈耦合到晶体管的每个输出端子。从次级线圈产生输出信号。初级线圈包括第一线圈和第二线圈，它们并联耦合在晶体管的相应输出端之间，并且每一个磁耦合到次级线圈。通过初级线圈的第一和第二线圈的并联耦合，初级线圈的输入阻抗减小。

53. 发明申请

US20110090011A1 POWER AMPLIFIER 有权
标题翻译：功率放大器
公开(公告)号：US20110090011A1
公开(公告)日：2011-04-21
申请号：US12727261
申请日：2010-03-19
申请人： De-Cheng Chang , Yu-Cheng Hsu
发明人： De-Cheng Chang , Yu-Cheng Hsu
IPC分类号： H03F3/04
CPC分类号： H03F1/0266 , H03F2200/105 , H03F2200/18
摘要： An adaptive bias power amplifier including an amplifier, a signal coupler, a power detector and a bias control circuit is provided. The signal coupler is connected to an input terminal of the amplifier. The power detector is connected to the signal coupler, and detects an input power of the amplifier via the signal coupler. The bias control circuit is connected to an output terminal of the power detector and the input terminal of the amplifier. The bias control circuit adjusts a gate bias of the amplifier in accordance with a detecting result of the power detector.
摘要翻译：提供了包括放大器，信号耦合器，功率检测器和偏置控制电路的自适应偏置功率放大器。信号耦合器连接到放大器的输入端。功率检测器连接到信号耦合器，并通过信号耦合器检测放大器的输入功率。偏置控制电路连接到功率检测器的输出端子和放大器的输入端子。偏置控制电路根据功率检测器的检测结果调整放大器的栅极偏置。

54. 发明授权

US07925229B2 Power detector of embedded IC test circuits 有权
标题翻译：嵌入式IC测试电路功率检测器
公开(公告)号：US07925229B2
公开(公告)日：2011-04-12
申请号：US12109915
申请日：2008-04-25
申请人： William R. Eisenstadt , Robert M. Fox , Jang Sup Yoon , Tao Zhang
发明人： William R. Eisenstadt , Robert M. Fox , Jang Sup Yoon , Tao Zhang
IPC分类号： H04B1/04 , G01R23/04
CPC分类号： H03F3/50 , H03F3/24 , H03F3/72 , H03F2200/105 , H03F2203/5031 , H04B17/19 , H04B17/318 , H04B2001/0408
摘要： A self-testing transceiver having an on-chip power detection capability is provided. The self-testing transceiver can include a semiconductor substrate and a transmitter having a high-power amplifier disposed on the substrate. The self-testing transceiver also can include a receiver disposed on the substrate for selectively coupling to an antenna. The self-testing transceiver can further include at least one power detector disposed on the semiconductor substrate for determining a power such as an RMS and/or peak-power of a signal at an internal node of the self-testing transceiver. Additionally, the self-testing transceiver can include a loopback circuit disposed on the substrate.
摘要翻译：提供具有片上功率检测能力的自检收发器。自检收发器可以包括半导体衬底和具有设置在衬底上的高功率放大器的发射器。自检收发器还可以包括布置在衬底上的接收器，用于选择性地耦合到天线。所述自检收发器还可以包括设置在所述半导体衬底上的至少一个功率检测器，用于确定所述自检收发器的内部节点处的信号的RMS和/或峰值功率的功率。此外，自检收发器可以包括设置在基板上的环回电路。

55. 发明授权

US07783272B2 Dynamic performance control of broadband tuner 有权
标题翻译：宽带调谐器的动态性能控制
公开(公告)号：US07783272B2
公开(公告)日：2010-08-24
申请号：US11477313
申请日：2006-06-29
申请人： Timothy M. Magnusen
发明人： Timothy M. Magnusen
IPC分类号： H04B1/06 , H04N5/14
CPC分类号： H03F1/0261 , H03F3/45197 , H03F2200/105 , H03F2200/228 , H04N7/102
摘要： A broadband signal amplifier includes one of more broadband amplifier circuits, each dynamically controlled in response to a total power level of signals applied thereto to reduce linearity in response to a reduction of input signal strength. A filter may couple the output of the broadband amplifier circuits to each other to form a tandem arrangement. Power detectors are connected to detect and provide outputs indicative of the total power levels of the signals applied to respective broadband amplifiers. A control unit is connected to and receives the output from the power detectors and, in response, provides a control signals to the broadband amplifier circuit so as to operate each over portions of their operating characteristic curves that provide only that degree of linearity necessary to limit distortion to a predetermined or dynamically adjustable maximum acceptable level.
摘要翻译：宽带信号放大器包括多个宽带放大器电路中的一个，每个电路响应于施加到其上的信号的总功率电平而动态地控制，以响应于输入信号强度的降低来降低线性度。滤波器可以将宽带放大器电路的输出彼此耦合以形成串联布置。功率检测器被连接以检测并提供表示施加到各个宽带放大器的信号的总功率电平的输出。控制单元连接到并接收来自功率检测器的输出，并且作为响应，向宽带放大器电路提供控制信号，以便操作各自的操作特性曲线的部分，其仅提供限制所需的线性度失真到预定的或动态可调的最大可接受水平。

56. 发明授权

US07777566B1 Amplifier compression adjustment circuit 有权
标题翻译：放大器压缩调节电路
公开(公告)号：US07777566B1
公开(公告)日：2010-08-17
申请号：US12366143
申请日：2009-02-05
申请人： Serge Francois Drogi , Vikas Vinayak
发明人： Serge Francois Drogi , Vikas Vinayak
IPC分类号： H03G3/20
CPC分类号： H03F3/24 , H03F1/0227 , H03F1/0238 , H03F1/0266 , H03F1/0272 , H03F1/3247 , H03F3/195 , H03F2200/105 , H03F2200/408 , H03F2200/78 , H03F2200/99
摘要： An RF power amplifier system adjusts the supply voltage to the power amplifier based upon an amplitude correction signal indicating the amplitude difference between the amplitude of the RF input signal and an attenuated amplitude of the RF output signal of the power amplifier. A variable gain amplifier (VGA) adjusts the amplitude of the RF input signal, thus providing a second means of adjusting the amplitude of the output of the power amplifier. The gain of the VGA or the supply voltage to the power amplifier is controlled based on the AC components of the amplitude correction signal, while the DC components of the amplitude correction signal are blocked from controlling the VGA or the supply voltage to the power amplifier. The DC level of the gain control of the VGA, the average supply voltage to the power amplifier, or the closed loop gain of the overall amplitude correction loop is controlled separately by a compression control signal.
摘要翻译： RF功率放大器系统基于指示RF输入信号的幅度与功率放大器的RF输出信号的衰减幅度之间的幅度差的幅度校正信号来调整功率放大器的电源电压。可变增益放大器（VGA）调整RF输入信号的幅度，从而提供调整功率放大器的输出幅度的第二装置。基于幅度校正信号的AC分量来控制VGA的增益或功率放大器的电源电压，同时阻止幅度校正信号的直流分量控制VGA或向功率放大器供电。 VGA的增益控制的直流电平，功率放大器的平均电源电压或整个幅度校正环路的闭环增益由压缩控制信号分别控制。

57. 发明授权

US07746167B1 Method of and circuit for adapting parameters for a predistortion circuit in an integrated circuit 有权
标题翻译：用于为集成电路中的预失真电路调整参数的方法和电路
公开(公告)号：US07746167B1
公开(公告)日：2010-06-29
申请号：US12201706
申请日：2008-08-29
申请人： Stephen Summerfield
发明人： Stephen Summerfield
IPC分类号： H03F1/26
CPC分类号： H03F3/195 , H03F1/3247 , H03F3/245 , H03F2200/105 , H03F2200/204 , H03F2201/3233
摘要： A method of adapting parameters for a predistortion circuit in an integrated circuit is disclosed. The method comprises receiving, at the predistortion circuit, an input signal to be amplified by a power amplifier; determining a value associated with an information tag for the input signal; applying parameters to the predistortion circuit based upon the determined value; receiving an output of the power amplifier at an input of the integrated circuit; comparing an output of the predistortion circuit with the output of the power amplifier; and generating updated parameters to be applied to the predistortion circuit. An integrated circuit having a circuit for adapting parameters for a predistortion circuit of the integrated circuit is also disclosed.
摘要翻译：公开了一种在集成电路中调整用于预失真电路的参数的方法。该方法包括在预失真电路处接收要由功率放大器放大的输入信号; 确定与所述输入信号的信息标签相关联的值; 基于确定的值将参数应用于预失真电路; 在所述集成电路的输入端处接收所述功率放大器的输出; 将预失真电路的输出与功率放大器的输出进行比较; 以及生成要应用于预失真电路的更新参数。还公开了一种具有用于调整集成电路的预失真电路的参数的电路的集成电路。

58. 发明授权

US07567126B2 Variable gain amplifier and control method thereof 失效
标题翻译：可变增益放大器及其控制方法
公开(公告)号：US07567126B2
公开(公告)日：2009-07-28
申请号：US12058354
申请日：2008-03-28
申请人： Tomoyuki Arai
发明人： Tomoyuki Arai
IPC分类号： H03G3/10
CPC分类号： H03G1/0088 , H03F1/301 , H03F1/3211 , H03F1/56 , H03F3/193 , H03F2200/105 , H03F2200/18 , H03F2200/213 , H03F2200/222 , H03F2200/228 , H03F2200/252 , H03F2200/42 , H03F2200/451 , H03F2200/75 , H03G3/001
摘要： A variable gain amplifier has a first amplifier circuit (106) having a first field-effect transistor and amplifying a signal input to a gate of the first field-effect transistor to output; a gate bias control circuit (102) controlling a gate bias of the first amplifier circuit to control a gain of the first amplifier circuit; and a variable matching circuit (103) controlling a capacitor connected to the gate of the first amplifier circuit to control the gain of the first amplifier circuit.
摘要翻译：可变增益放大器具有第一放大电路（106），其具有第一场效应晶体管，并放大输入到第一场效应晶体管的栅极的信号输出; 栅极偏置控制电路（102），其控制所述第一放大器电路的栅极偏置，以控制所述第一放大器电路的增益; 以及可变匹配电路（103），控制连接到第一放大器电路的栅极的电容器，以控制第一放大器电路的增益。

59. 发明申请

US20080211575A1 Loop Gain Equalizer For Rf Power Amplifier 有权
标题翻译： Rf功率放大器的环路增益均衡器
公开(公告)号：US20080211575A1
公开(公告)日：2008-09-04
申请号：US12063012
申请日：2005-08-05
申请人： Hugues Beaulaton , Gerald Haennig , Didier Salle
发明人： Hugues Beaulaton , Gerald Haennig , Didier Salle
IPC分类号： H03G3/20 , H03F1/02
CPC分类号： H03F1/02 , H03F1/0272 , H03F2200/105 , H03F2200/78
摘要： The output power of an RF power amplifier is controlled using a feedback loop including a differential integrator for controlling the amplifier's bias voltage. The gain of integration in the differential integrator is varied so as to compensate for variations in the derivative of the power amplifier output power versus the bias voltage.
摘要翻译：使用包括用于控制放大器的偏置电压的差分积分器的反馈回路来控制RF功率放大器的输出功率。差分积分器的积分增益是变化的，以便补偿功率放大器输出功率相对于偏置电压的导数的变化。

60. 发明授权

US06735424B1 S-band low-noise amplifier with self-adjusting bias for improved power consumption and dynamic range in a mobile environment 有权
标题翻译：具有自调节偏置的S波段低噪声放大器，可在移动环境中提高功耗和动态范围
公开(公告)号：US06735424B1
公开(公告)日：2004-05-11
申请号：US09595508
申请日：2000-06-14
申请人： Lawrence Larson , Wei Xiong
发明人： Lawrence Larson , Wei Xiong
IPC分类号： H04B106
CPC分类号： H03F1/0272 , H03F2200/105 , H03F2200/15 , H03F2200/222 , H03F2200/294 , H03F2200/318 , H03F2200/372 , H03F2200/387 , H03F2200/411 , H03F2200/451 , H03G3/3042
摘要： A discrete low-noise amplifier designed to operate in a mobile wireless environment uses two cascaded GaAs FETs to achieve 25 dB gain and 0.9 dB noise figure at 2.5 GHz. Active bias control circuitry responsive to monitored amplifier output power automatically and continuously adjusts the drain-source currents, and the load lines, of the cascaded FETs to (i) maintain power consumption at 33 milliwatts in nominal small-signal conditions, and to (ii) provide an elevated input third-order intermodulation intercept point (IP3) and a reduced noise figure during the presence of jamming. A 15 dB improvement in the input IP3 is achieved in large-signal operation. Amplifier operation is supported by an a.c. power detector of enhanced sensitivity and responsiveness because of un-grounded operation.
摘要翻译：设计用于在移动无线环境中工作的离散低噪声放大器使用两个级联的GaAs FET来实现2.5 GHz的增益和0.9 dB的噪声系数。主动偏置控制电路响应监控的放大器输出功率自动并连续调节级联FET的漏源电流和负载线，以（i）在标称小信号条件下维持在33毫瓦的功耗，并且（ii ）提供了增加的输入三阶互调拦截点（IP3）和在存在干扰的情况下降低的噪声系数。在大信号操作中实现了输入IP3的15dB改善。放大器的操作由a.c. 功率检测器由于未接地操作而具有增强的灵敏度和响应性。

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