公开(公告)号：US08335481B2

公开(公告)日：2012-12-18

申请号：US12744242

申请日：2007-12-05

申请人： Bjorn Almgren

发明人： Bjorn Almgren

IPC分类号： H04B1/04

CPC分类号： H03H7/40 ,  H03F1/0205 ,  H03F1/565 ,  H03F3/24 ,  H03F3/60 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/391 ,  H03F2200/423 ,  H03F2200/451

摘要： The present invention concerns a load modulation arrangement adapted to be connected to an amplifying device. The load modulation arrangement comprises a first reactive element, a second reactive element and at least one variable capacitive element. Further, the load modulation arrangement comprises a quarter wave transforming element adapted to be connected to the first reactive element. The present invention also concerns a method for load modulation, a wireless transceiver and a radio transmission device.

摘要翻译： 本发明涉及一种适于连接到放大装置的负载调制装置。 负载调制装置包括第一无功元件，第二电抗元件和至少一个可变电容元件。 此外，负载调制装置包括适于连接到第一电抗元件的四分之一波长变换元件。 本发明还涉及一种用于负载调制的方法，无线收发机和无线电传输装置。

公开(公告)号：US20120286876A1

公开(公告)日：2012-11-15

申请号：US13519715

申请日：2010-02-05

申请人： Jong Soo Lee

发明人： Jong Soo Lee

IPC分类号： H03F3/68 ,  H03F3/21

CPC分类号： H03F3/191 ,  H03F1/565 ,  H03F3/602 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/417 ,  H03F2200/421 ,  H03F2200/423 ,  H03F2203/7209

摘要： Disclosed is a multi-band power amplifier capable of operating at multiple frequency bands. The multi-band power amplifier includes: a power amplification unit which amplifies an input signal; a matching network circuit which provides impedance matching between the power amplification unit and a load; and an auxiliary amplification unit which additionally supplies a certain magnitude of electric current to the load.

摘要翻译： 公开了能够在多个频带上操作的多频带功率放大器。 多波段功率放大器包括：放大输入信号的功率放大单元; 提供功率放大单元和负载之间的阻抗匹配的匹配网络电路; 以及另外向负载提供一定量的电流的辅助放大单元。

公开(公告)号：US08207798B1

公开(公告)日：2012-06-26

申请号：US12556385

申请日：2009-09-09

申请人： Peter V. Wright

发明人： Peter V. Wright

IPC分类号： H03H7/38

CPC分类号： H03F1/565 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/391 ,  H03H7/38

摘要： Embodiments of circuits, apparatuses, and systems for a matching network having a switchable capacitor bank are disclosed. Other embodiments may be described and claimed.

摘要翻译： 公开了具有可切换电容器组的具有匹配网络的电路，装置和系统的实施例。 可以描述和要求保护其他实施例。

公开(公告)号：US08049653B2

公开(公告)日：2011-11-01

申请号：US12717237

申请日：2010-03-04

申请人： Yuji Nakajima

发明人： Yuji Nakajima

IPC分类号： H03M1/34

CPC分类号： H03F3/45475 ,  H03F3/45183 ,  H03F2200/378 ,  H03F2200/78 ,  H03F2203/45138 ,  H03M1/205

摘要： An amplifier that is operated between first and second power supplies includes a transistor pair having control terminals to which input signals are input, a load resistor pair that is provided between each transistor of the transistor pair and the first power supply, a constant current source that is provided between the second power supply and the transistor pair, and a first switch that is connected with the constant current source in series between the second power supply and the transistor pair, the first switch being turned on or off in accordance with a clock signal.

摘要翻译： 在第一和第二电源之间操作的放大器包括具有输入信号的控制端子的晶体管对，设置在晶体管对的每个晶体管和第一电源之间的负载电阻器对，恒流源， 设置在所述第二电源和所述晶体管对之间，以及第一开关，其与所述恒定电流源串联连接在所述第二电源和所述晶体管对之间，所述第一开关根据时钟信号导通或截止 。

公开(公告)号：US20110098013A1

公开(公告)日：2011-04-28

申请号：US12923763

申请日：2010-10-07

申请人： Katsuaki Takahashi ,  Noboru Sasho ,  Naoto Yoshikawa ,  Taiwa Okanobu

发明人： Katsuaki Takahashi ,  Noboru Sasho ,  Naoto Yoshikawa ,  Taiwa Okanobu

IPC分类号： H04B1/06 ,  H03F3/189

CPC分类号： H03F3/189 ,  H03F2200/378 ,  H03F2200/391

摘要： A high-frequency amplifier includes: an amplification section having a function to convert an input signal from a voltage signal into a current signal and output the current signal; output terminals; and a load circuit which is connected to the output node of the amplification section and outputs the current signal output by the amplification section to the output terminals as a voltage signal.

摘要翻译： 高频放大器包括：具有将来自电压信号的输入信号转换为电流信号并输出​​电流信号的功能的放大部分; 输出端子; 以及负载电路，连接到放大部分的输出节点，并将由放大部分输出的电流信号输出到输出端作为电压信号。

公开(公告)号：US20100308933A1

公开(公告)日：2010-12-09

申请号：US12544177

申请日：2009-08-19

申请人： Puay Hoe See ,  Aristotele Hadjichristos ,  Gurkanwal Singh Sahota

发明人： Puay Hoe See ,  Aristotele Hadjichristos ,  Gurkanwal Singh Sahota

IPC分类号： H03H7/38

CPC分类号： H04B1/0458 ,  H03F1/565 ,  H03F3/24 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2203/7209

摘要： Tunable matching circuits for power amplifiers are described. In an exemplary design, an apparatus may include a power amplifier and a tunable matching circuit. The power amplifier may amplify an input RF signal and provide an amplified RF signal. The tunable matching circuit may provide output impedance matching for the power amplifier, may receive the amplified RF signal and provide an output RF signal, and may be tunable based on at least one parameter effecting the operation of the power amplifier. The parameter(s) may include an envelope signal for the amplified RF signal, an average output power level of the output RF signal, a power supply voltage for the power amplifier, IC process variations, etc. The tunable matching circuit may include a series variable capacitor and/or a shunt variable capacitor. Each variable capacitor may be tunable based on a control generated based on the parameter(s).

摘要翻译： 描述了用于功率放大器的可调谐匹配电路。 在示例性设计中，设备可以包括功率放大器和可调谐匹配电路。 功率放大器可以放大输入RF信号并提供放大的RF信号。 可调谐匹配电路可以为功率放大器提供输出阻抗匹配，可以接收放大的RF信号并提供输出RF信号，并且可以基于影响功率放大器的操作的至少一个参数来调节。 参数可以包括放大的RF信号的包络信号，输出RF信号的平均输出功率电平，功率放大器的电源电压，IC过程变化等。可调谐匹配电路可以包括一系列 可变电容器和/或分流可变电容器。 每个可变电容器可以基于基于参数产生的控制来调节。

公开(公告)号：US07692494B2

公开(公告)日：2010-04-06

申请号：US11950347

申请日：2007-12-04

申请人： Tsuyoshi Ogino ,  Fumitaka Iizuka ,  Kunihiko Nakajima

发明人： Tsuyoshi Ogino ,  Fumitaka Iizuka ,  Kunihiko Nakajima

IPC分类号： H03F3/04

CPC分类号： H03F1/56 ,  H03F1/34 ,  H03F3/04 ,  H03F3/191 ,  H03F2200/111 ,  H03F2200/213 ,  H03F2200/222 ,  H03F2200/378 ,  H03F2200/42 ,  H03F2200/451 ,  H03H7/40

摘要： A variable frequency amplifier suffering less deterioration of strain characteristic and capable of operating at plural frequencies is disclosed. In one aspect, a changeable amplifier comprises an amplifying element, a changeable matching circuit disposed at an input side of the amplifying element and including a first variable capacity element connected in series with a signal conductor and a second variable capacity element connected in parallel with the signal conductor, and a control circuit for controlling the changeable matching circuit. Based on a feedback signal, the control circuit applies DC bias voltages to the first variable capacity element and the second variable capacity element of the changeable matching circuit and also applies thereto a correction signal.

摘要翻译： 公开了一种可变频率放大器，其应变特性较差并能够以多个频率工作。 一方面，可变放大器包括放大元件，设置在放大元件的输入侧的可变匹配电路，包括与信号导体串联连接的第一可变电容元件和与第一可变电容元件并联连接的第二可变电容元件 信号导体和用于控制可变匹配电路的控制电路。 基于反馈信号，控制电路将DC偏置电压施加到可变匹配电路的第一可变电容元件和第二可变电容元件，并向其施加校正信号。

公开(公告)号：US20090066440A1

公开(公告)日：2009-03-12

申请号：US12207724

申请日：2008-09-10

申请人： Francis Chan Wai Po ,  Emeric De Foucauld ,  Pierre Vincent

发明人： Francis Chan Wai Po ,  Emeric De Foucauld ,  Pierre Vincent

IPC分类号： H03H7/40

CPC分类号： H03H7/40 ,  H03F1/56 ,  H03F3/24 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/451 ,  H04B1/0458

摘要： The invention relates to a method for automatically matching the antenna impedance for a radiofrequency transmission circuit having an amplifier. An impedance matching network is inserted between the amplifier and the antenna. The output current i and voltage V from the amplifier and their phase shift are measured, and from this the complex impedance, defined by V/i, is deduced. The antenna impedance is calculated as a function of this complex impedance and as a function of the known present values of the adjustable impedances of the matching network. New values are calculated, from the calculated value of the antenna impedance, for the adjustable impedances of the matching network that allow an overall load impedance of the amplifier to be obtained which is as close as possible to the nominal load impedance Zopt of the amplifier, and the matching network is controlled to adjust the adjustable impedances to these new values.

摘要翻译： 本发明涉及一种用于自动匹配具有放大器的射频发射电路的天线阻抗的方法。 阻抗匹配网络插在放大器和天线之间。 测量来自放大器的输出电流i和电压V及其相移，并从此推导出由V / i定义的复阻抗。 根据该复阻抗的函数计算天线阻抗，并且根据匹配网络的可调阻抗的已知现值的函数来计算天线阻抗。 对于匹配网络的可调节阻抗来计算新的值，其允许获得放大器的总负载阻抗尽可能接近放大器的额定负载阻抗Zopt， 并且控制匹配网络以将可调阻抗调整到这些新值。

公开(公告)号：US20090015324A1

公开(公告)日：2009-01-15

申请号：US11827185

申请日：2007-07-11

申请人： Rahul Magoon ,  Scott D. Kee ,  Seyed-Ali Hajimiri ,  Ichiro Aoki ,  Roberto Aparicio Joo ,  Morten Damgaard ,  Setu Mohta ,  Geoff Hatcher

发明人： Rahul Magoon ,  Scott D. Kee ,  Seyed-Ali Hajimiri ,  Ichiro Aoki ,  Roberto Aparicio Joo ,  Morten Damgaard ,  Setu Mohta ,  Geoff Hatcher

IPC分类号： H03G3/24 ,  H03G11/04

CPC分类号： H03F1/02 ,  G01R19/04 ,  H03F1/32 ,  H03F1/52 ,  H03F3/19 ,  H03F2200/102 ,  H03F2200/324 ,  H03F2200/378 ,  H03F2200/393 ,  H03F2200/451 ,  H03F2200/453 ,  H03F2200/456 ,  H03F2200/462 ,  H03F2200/471 ,  H03F2200/541 ,  H03F2200/99 ,  H03G3/3047

摘要： A system for controlling amplifier power is provided. The system includes a voltage envelope detector receiving a voltage signal and generating an attenuated voltage envelope signal. A current envelope detector receives a current signal and generates an attenuated current envelope signal. A controller receives power level data and generates attenuation control data for the voltage envelope signal and the current envelope signal. A detector receives the voltage envelope signal and the current envelope signal and generates a control signal based on the greater of the voltage envelope signal and the current envelope signal. A power amplifier level controller receives the control signal and generates a power amplifier level control signal.

摘要翻译： 提供了一种用于控制放大器功率的系统。 该系统包括接收电压信号并产生衰减的电压包络信号的电压包络检测器。 电流包络检测器接收电流信号并产生衰减电流包络信号。 控制器接收功率电平数据并产生电压包络信号和电流包络信号的衰减控制数据。 检测器接收电压包络信号和电流包络信号，并且基于电压包络信号和电流包络信号中的较大者产生控制信号。 功率放大器电平控制器接收控制信号并产生功率放大器电平控制信号。

公开(公告)号：US20080029753A1

公开(公告)日：2008-02-07

申请号：US11461564

申请日：2006-08-01

申请人： Yang Xu ,  Lawrence Pileggi ,  Mehdi Asheghi

发明人： Yang Xu ,  Lawrence Pileggi ,  Mehdi Asheghi

IPC分类号： H01L47/00

CPC分类号： H01L45/1226 ,  H01L45/06 ,  H01L45/1206 ,  H01L45/1286 ,  H01L45/144 ,  H03D7/145 ,  H03D7/1458 ,  H03D7/165 ,  H03F1/22 ,  H03F1/26 ,  H03F1/565 ,  H03F3/195 ,  H03F3/45278 ,  H03F3/72 ,  H03F2200/111 ,  H03F2200/243 ,  H03F2200/249 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2200/378 ,  H03F2200/417 ,  H03F2200/451 ,  H03F2200/489 ,  H03F2203/45306 ,  H03F2203/45371 ,  H03F2203/7215

摘要： Configurable circuits using phase change switches are described. The switches use phase change or phase transition material to create configurable connections between devices and/or interconnecting layers of an integrated circuit in order to change the behavior of the circuit after manufacturing. In at least some embodiments, the phase of the material can be a crystalline phase or an amorphous phase. A phase change can be caused by heating the material, such as with an ohmic heater fabricated on the IC. As one example, germanium-antimony-tellurium (GeSbTe) can be used for the phase change material. The switches can be used to create configurable circuits such as low noise amplifiers and mixers, which can in turn be used to create configurable receivers or other analog circuits.

摘要翻译： 描述使用相变开关的可配置电路。 开关使用相变或相变材料来在器件之间创建可配置的连接和/或互连集成电路的层，以便改变制造后的电路的行为。 在至少一些实施方案中，材料的相可以是结晶相或非晶相。 可以通过加热材料，例如用在IC上制造的欧姆加热器来引起相变。 作为一个示例，锗 - 锑 - 碲（GeSbTe）可用于相变材料。 这些开关可用于创建可配置的电路，如低噪声放大器和混频器，这些电路又可用于创建可配置接收器或其他模拟电路。