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276 条记录 (耗时 0.03 秒)

    RF SIGNAL GENERATING CIRCUIT, AND TRANSMITTER
    21.
    发明申请
    RF SIGNAL GENERATING CIRCUIT, AND TRANSMITTER 有权
    射频信号发生电路和发射机

    公开(公告)号：US20140205041A1

    公开(公告)日：2014-07-24

    申请号：US14342678

    申请日：2012-08-21

    申请人： NEC Corporation

    发明人： Shinichi Hori

    IPC分类号： H04L27/00

    CPC分类号： H04L27/0008 ,  H03F1/0277 ,  H03F1/06 ,  H03F1/26 ,  H03F3/2173 ,  H03F3/2178 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03F2200/336 ,  H03F2200/351 ,  H03F2200/408 ,  H03F2203/7221 ,  H03F2203/7236 ,  H03K7/08 ,  H04L25/4902

    摘要： An RF signal generating circuit that generates, from a digital signal, an RF pulse signal to be radio-transmitted. It includes a polar converter generating an amplitude signal and a phase signal from the digital signal; a signal decomposer receiving the amplitude signal as an input signal, and generates two signals, a pulse width control signal and a residual signal; a delta sigma modulator subjecting the residual signal to delta-sigma modulation; a pulse width modulator subjecting the phase signal to pulse modulation in accordance with the pulse width control signal, and outputting a pulse phase signal; and a mixer that mixes a signal output from the delta sigma modulator and the pulse phase signal to output the RF pulse signal. The signal decomposer generates the pulse width control and residual signals if a product of a fundamental wave component of the pulse phase and residual signals equals the amplitude signal.

    摘要翻译： 一种RF信号发生电路，其从数字信号产生要被无线电发送的RF脉冲信号。 它包括一个从数字信号产生幅度信号和相位信号的极化转换器; 接收振幅信号作为输入信号的信号分解器，产生两个信号，脉冲宽度控制信号和残留信号; 对所述残余信号进行Δ-Σ调制的ΔΣ调制器; 脉冲宽度调制器，根据脉冲宽度控制信号对相位信号进行脉冲调制，并输出脉冲相位信号; 以及混合器，其将来自Δ-Σ调制器的信号和脉冲相位信号混合输出RF脉冲信号。 如果脉冲相位的基波分量与残差信号的乘积等于振幅信号，则信号分解器产生脉宽控制和残差信号。

    FRONT END RADIO ARCHITECTURE (FERA) WITH POWER MANAGEMENT
    23.
    发明申请
    FRONT END RADIO ARCHITECTURE (FERA) WITH POWER MANAGEMENT 有权
    前端无线电架构（FERA）与电源管理

    公开(公告)号：US20140038675A1

    公开(公告)日：2014-02-06

    申请号：US14051601

    申请日：2013-10-11

    申请人： RF Micro Devices, Inc.

    发明人： Nadim Khlat ,  Alexander Wayne Hietala

    IPC分类号： H04W52/02

    CPC分类号： H04W52/0251 ,  H03F1/02 ,  H03F1/0227 ,  H03F3/24 ,  H03F3/68 ,  H03F3/72 ,  H03F2203/7209 ,  H03F2203/7221 ,  H04B1/0067 ,  H04B2001/045 ,  H04L5/001

    摘要： A front end radio architecture (FERA) with power management is disclosed. The FERA includes a first power amplifier (PA) block having a first-first PA for amplifying first-first signals and a first-second PA for amplifying first-second signals. Also included is a second PA block having a second-first PA for amplifying second-first signals and a second-second PA for amplifying second-second signals. At least one power supply is adapted to selectively supply power to the first-first PA and the second-second PA through a first path. The power supply is also adapted to selectively supply power to the first-second PA and the second-first PA through a second path. A control system is adapted to selectively enable and disable the first-first PA, the first-second PA, the second-first PA, and the second-second PA.

    摘要翻译： 公开了具有电源管理的前端无线电架构（FERA）。 FERA包括具有用于放大第一信号的第一第一PA和用于放大第一秒信号的第一秒PA的第一功率放大器（PA）模块。 还包括具有用于放大第二第一信号的第二第一PA和用于放大第二秒信号的第二秒PA的第二PA块。 至少一个电源适于通过第一路径选择性地向第一首PA和第二秒PA供电。 电源还适于通过第二路径选择性地向第一和第二PA供电。 控制系统适于选择性地启用和禁用第一优先PA，第一秒PA，第二优先PA和第二秒PA。

    Area efficient concurrent matching transceiver
    25.
    发明授权
    Area efficient concurrent matching transceiver 有权
    区域效率并发匹配收发器

    公开(公告)号：US08626084B2

    公开(公告)日：2014-01-07

    申请号：US12970210

    申请日：2010-12-16

    申请人： Ngar Loong A Chan ,  Jonghoon Choi ,  Bindu Gupta

    发明人： Ngar Loong A Chan ,  Jonghoon Choi ,  Bindu Gupta

    IPC分类号： H04B1/44

    CPC分类号： H03F3/195 ,  H03F1/223 ,  H03F1/347 ,  H03F1/565 ,  H03F3/245 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/492 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/7221 ,  H03H11/30 ,  H04B1/0458 ,  H04B1/18

    摘要： An integrated circuit for transmit and receive matching is described. The integrated circuit includes a transmit amplifier. The transmit amplifier includes a first transistor, a second transistor and a first inductor. The first inductor couples the first transistor to the second transistor. The integrated circuit also includes a low noise amplifier. The low noise amplifier includes a third transistor, a fourth transistor, the first inductor, a second inductor, a third inductor and a transformer. The second inductor couples the first inductor to the third transistor. The third inductor couples the third transistor to ground.

    摘要翻译： 描述了用于发送和接收匹配的集成电路。 集成电路包括发射放大器。 发射放大器包括第一晶体管，第二晶体管和第一电感器。 第一电感器将第一晶体管耦合到第二晶体管。 该集成电路还包括一个低噪声放大器。 低噪声放大器包括第三晶体管，第四晶体管，第一电感器，第二电感器，第三电感器和变压器。 第二电感器将第一电感器耦合到第三晶体管。 第三电感将第三晶体管耦合到地。

    HIGH FREQUENCY POWER AMPLIFIER
    29.
    发明申请
    HIGH FREQUENCY POWER AMPLIFIER 有权
    高频功率放大器

    公开(公告)号：US20120293257A1

    公开(公告)日：2012-11-22

    申请号：US13428580

    申请日：2012-03-23

    申请人： Shintaro WATANABE ,  Kazuhiro IYOMASA ,  Hiroaki MAEHARA ,  Jun TAKASO

    发明人： Shintaro WATANABE ,  Kazuhiro IYOMASA ,  Hiroaki MAEHARA ,  Jun TAKASO

    IPC分类号： H03F3/217

    CPC分类号： H03F1/56 ,  H03F1/0277 ,  H03F3/19 ,  H03F3/72 ,  H03F2200/222 ,  H03F2200/318 ,  H03F2200/387 ,  H03F2200/411 ,  H03F2203/7215 ,  H03F2203/7221 ,  H03F2203/7236 ,  H03F2203/7239 ,  H03G3/3042

    摘要： A high frequency power amplifier includes: a first transistor for amplifying an input high-frequency signal; a second transistor for amplifying an output signal of the first transistor; a third transistor connected in parallel with the first transistor and for amplifying the input high-frequency signal; a first switching element connected between an output of the first transistor and an input of the second transistor; a second switching element connected between an output of the third transistor and the first switching element; third and fourth switching elements connected in series between the output of the first transistor and an output of the second transistor, and between the second switching element and the output of the second transistor; and a first capacitor connected between the third switching element and the fourth switching element.

    摘要翻译： 高频功率放大器包括：用于放大输入高频信号的第一晶体管; 用于放大第一晶体管的输出信号的第二晶体管; 与第一晶体管并联连接并用于放大输入高频信号的第三晶体管; 连接在第一晶体管的输出端和第二晶体管的输入端之间的第一开关元件; 第二开关元件，连接在第三晶体管的输出端和第一开关元件之间; 第三和第四开关元件串联连接在第一晶体管的输出端和第二晶体管的输出端之间以及第二开关元件与第二晶体管的输出之间; 以及连接在第三开关元件和第四开关元件之间的第一电容器。

    Variable gain amplifier
    30.
    发明授权
    Variable gain amplifier 有权
    可变增益放大器

    公开(公告)号：US08212618B2

    公开(公告)日：2012-07-03

    申请号：US12920149

    申请日：2009-02-26

    申请人： Shinichi Hori

    发明人： Shinichi Hori

    IPC分类号： H03G3/30

    CPC分类号： H03G1/0088 ,  H03F3/211 ,  H03F3/45183 ,  H03F3/72 ,  H03F2203/21145 ,  H03F2203/7221

    摘要： A variable gain amplifier which includes a plurality of individual amplifiers and variably controls the gain by switching to and using one of the individual amplifier circuits includes an individual amplifier (11) which amplifies a signal input from the input terminal of the variable gain amplifier (100) by an active element (M1), and outputs the input signal, an attenuator (14) which attenuates the input signal by a passive circuit (ZC), and outputs the input signal as an attenuated signal, and a virtual ground point providing circuit (15) which provides a virtual ground potential to the input terminal of the virtual ground point providing circuit (15) by an isolation active circuit (MC) interposed between the input terminal of the virtual ground point providing circuit (15) and the ground node of the variable gain amplifier (100).

    摘要翻译： 一种可变增益放大器，包括多个单独的放大器，并通过切换到并使用各个放大器电路中的一个来可变地控制增益，包括放大从可变增益放大器（100）的输入端输入的信号的单独放大器 ），并输出输入信号，衰减器（14），其通过无源电路（ZC）衰减输入信号，并输出该输入信号作为衰减信号，以及虚拟接地点提供电路 （15），其通过插在虚拟接地点提供电路（15）的输入端子与接地节点（15）之间的隔离有源电路（MC）向虚拟接地点提供电路（15）的输入端提供虚拟地电位， 的可变增益放大器（100）。