Linear RF power amplifier with frequency-selectable impedance matching
    3.
    发明授权
    Linear RF power amplifier with frequency-selectable impedance matching 有权
    具有频率可选阻抗匹配的线性RF功率放大器

    公开(公告)号:US08253496B2

    公开(公告)日:2012-08-28

    申请号:US12872116

    申请日:2010-08-31

    IPC分类号: H03F3/191 H03G3/20

    摘要: A radio frequency (RF) amplifier circuit includes a first impedance matching circuit configured to receive an input RF signal, a control circuit configured to produce a band control signal according to the frequency of the input RF signal, an RF amplifier having its input connected to the first impedance matching circuit. The RF amplifier can produce an amplified RF signal in response to the input RF signal. A second impedance matching circuit can receive the amplified RF signal from the RF amplifier. At least one of the first impedance matching circuit and the second impedance matching circuit has an impedance that is adjustable by the band control signal. A multi-band filter can switch the amplified RF signal from the second impedance matching circuit to one of selectable narrow-band filters in response to the band control signal.

    摘要翻译: 射频(RF)放大器电路包括被配置为接收输入RF信号的第一阻抗匹配电路,被配置为根据输入RF信号的频率产生频带控制信号的控制电路,RF放大器的输入连接到 第一阻抗匹配电路。 RF放大器可以响应于输入的RF信号产生放大的RF信号。 第二阻抗匹配电路可以从RF放大器接收放大的RF信号。 第一阻抗匹配电路和第二阻抗匹配电路中的至少一个具有可由频带控制信号调节的阻抗。 多频带滤波器可以响应于频带控制信号将放大的RF信号从第二阻抗匹配电路切换到可选窄带滤波器之一。

    LINEAR RF POWER AMPLIFIER WITH FREQUENCY-SELECTABLE IMPEDANCE MATCHING
    4.
    发明申请
    LINEAR RF POWER AMPLIFIER WITH FREQUENCY-SELECTABLE IMPEDANCE MATCHING 有权
    具有频率选择性阻抗匹配的线性RF功率放大器

    公开(公告)号:US20100321110A1

    公开(公告)日:2010-12-23

    申请号:US12872116

    申请日:2010-08-31

    IPC分类号: H03F1/08

    摘要: A radio frequency (RF) amplifier circuit includes a first impedance matching circuit configured to receive an input RF signal, a control circuit configured to produce a band control signal according to the frequency of the input RF signal, an RF amplifier having its input connected to the first impedance matching circuit. The RF amplifier can produce an amplified RF signal in response to the input RF signal. A second impedance matching circuit can receive the amplified RF signal from the RF amplifier. At least one of the first impedance matching circuit and the second impedance matching circuit has an impedance that is adjustable by the band control signal. A multi-band filter can switch the amplified RF signal from the second impedance matching circuit to one of selectable narrow-band filters in response to the band control signal.

    摘要翻译: 射频(RF)放大器电路包括被配置为接收输入RF信号的第一阻抗匹配电路,被配置为根据输入RF信号的频率产生频带控制信号的控制电路,RF放大器的输入连接到 第一阻抗匹配电路。 RF放大器可以响应于输入的RF信号产生放大的RF信号。 第二阻抗匹配电路可以从RF放大器接收放大的RF信号。 第一阻抗匹配电路和第二阻抗匹配电路中的至少一个具有可由频带控制信号调节的阻抗。 多频带滤波器可以响应于频带控制信号将放大的RF信号从第二阻抗匹配电路切换到可选窄带滤波器之一。

    Power amplifier with integrated sensors
    5.
    发明授权
    Power amplifier with integrated sensors 有权
    带集成传感器的功率放大器

    公开(公告)号:US07253681B2

    公开(公告)日:2007-08-07

    申请号:US11433896

    申请日:2006-05-12

    IPC分类号: H03G3/20

    CPC分类号: H03G3/3042

    摘要: An amplifier circuit for amplifying radio frequency signals includes a radio frequency power amplifier to receive an input radio frequency signal and to output an amplified radio frequency signal; one or more sensors coupled to the radio frequency power amplifier to provide a closed-loop feedback signal; and a power sensor coupled to the amplified radio frequency signal.

    摘要翻译: 用于放大射频信号的放大器电路包括射频功率放大器,用于接收输入射频信号并输出​​放大的射频信号; 一个或多个传感器耦合到射频功率放大器以提供闭环反馈信号; 以及耦合到放大的射频信号的功率传感器。

    Frequency filtering circuit for wireless communication devices
    7.
    发明申请
    Frequency filtering circuit for wireless communication devices 有权
    无线通信设备的频率滤波电路

    公开(公告)号:US20060087387A1

    公开(公告)日:2006-04-27

    申请号:US10972858

    申请日:2004-10-25

    IPC分类号: H01P1/203

    摘要: Systems and methods are disclosed for a frequency filtering circuit for wireless communications that includes a first resonator circuit comprising a first transmission line and a first capacitor coupled to the first transmission line and a second resonator circuit in parallel to the first resonator circuit, said second resonator circuit comprising a second transmission line and a second capacitor coupled to the second transmission line. A coupling circuit couples the first resonator circuit and the second resonator circuit.

    摘要翻译: 公开了一种用于无线通信的频率滤波电路的系统和方法,其包括第一谐振器电路,所述第一谐振器电路包括耦合到第一传输线的第一传输线和第一电容器以及与第一谐振器电路并联的第二谐振器电路, 电路包括耦合到第二传输线的第二传输线和第二电容器。 耦合电路耦合第一谐振器电路和第二谐振器电路。

    RF POWER AMPLIFIER WITH LINEARITY CONTROL
    10.
    发明申请
    RF POWER AMPLIFIER WITH LINEARITY CONTROL 审中-公开
    射频功率放大器具有线性控制

    公开(公告)号:US20100219887A1

    公开(公告)日:2010-09-02

    申请号:US12776216

    申请日:2010-05-07

    IPC分类号: H03F3/68

    CPC分类号: G06F1/181 H03G3/3036

    摘要: A linear amplifier circuit includes a multi-stage power amplifier that can amplify an input signal to produce an output signal, and a gain feedback control circuit coupled with the output and the input of the multi-stage power amplifier. An adjacent-channel leakage feedback control circuit can detect the output signal at the output of the multi-stage power amplifier and reduce adjacent-channel leakage in the output signal over an output power range based on the detected output signal.

    摘要翻译: 线性放大器电路包括可以放大输入信号以产生输出信号的多级功率放大器,以及与多级功率放大器的输出和输入耦合的增益反馈控制电路。 相邻通道泄漏反馈控制电路可以检测多级功率放大器输出端的输出信号,并根据检测到的输出信号在输出功率范围内减少输出信号中的相邻通道泄漏。