Wireless communication terminal and voltage controlled oscillator therefor
    1.
    发明授权
    Wireless communication terminal and voltage controlled oscillator therefor 失效
    无线通信终端及其压控振荡器

    公开(公告)号:US07145410B2

    公开(公告)日:2006-12-05

    申请号:US10823052

    申请日:2004-04-13

    IPC分类号: H03L7/09 H03B5/08 H03B5/18

    摘要: A wireless communication unit (100) comprises a voltage controlled oscillator (123) having an active device (450) operably coupled to a first variable capacitance (425) to provide a variable capacitance value based on an applied steering line voltage, and a feedback network comprising a resonator (475), operably coupled to an output of the active device, for feeding power back to an input of the active device to sustain oscillations (123). Notably, a second variable capacitance is operably coupled to receive a control voltage from the steering line (405) and located between the resonator (475) and the active device (450).

    摘要翻译: 无线通信单元(100)包括压控振荡器(123),其具有可操作地耦合到第一可变电容(425)的有源器件(450),以基于所施加的转向线电压提供可变电容值,以及反馈网络 包括可操作地耦合到有源器件的输出的谐振器(475),用于将功率回馈到有源器件的输入以维持振荡(123)。 值得注意的是,第二可变电容可操作地耦合以从转向线(405)接收并位于谐振器(475)和有源器件(450)之间的控制电压。

    RF power amplifier circuit and RF transmitter and terminal including it
    2.
    发明授权
    RF power amplifier circuit and RF transmitter and terminal including it 有权
    射频功率放大器电路和射频发射器和终端包括它

    公开(公告)号:US07250818B2

    公开(公告)日:2007-07-31

    申请号:US11096938

    申请日:2005-04-01

    IPC分类号: H03G3/20

    摘要: A RFPA (radio frequency power amplifier) circuit (150) which includes a RFPA (101), a supply voltage source (104), means (155) for applying to the RFPA a gain control bias voltage and a feedback control loop (156) for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler (107) for sampling an output of the RFPA, a RF detector (109) for detecting a level of RF power sampled by the sampler, a comparator (115) for comparing an output signal from the RF detector with a reference signal, an integrator (117) for integrating an output signal of the comparator and a voltage regulator (151) having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

    摘要翻译: 包括RFPA(101),电源电压源(104)的RFPA(射频功率放大器)电路(150),用于向RFPA施加增益控制偏置电压的装置(155)和反馈控制回路(156) 用于调整施加到RFPA的电压,所述反馈控制回路包括用于对RFPA的输出进行采样的采样器(107);用于检测由采样器采样的RF功率电平的RF检测器(109),比较器(115) 用于将来自RF检测器的输出信号与参考信号进行比较,用于对比较器的输出信号进行积分的积分器(117)和具有来自积分器的第一输入的电压调节器(151)和来自电源电压源的第二输入 以及连接到所述RFPA的输出,所述调节器可操作以向所述RFPA施加响应于来自所述积分器的输入信号而调整的电源电压。

    RF power amplifier circuit and RF transmitter and terminal including it
    3.
    发明申请
    RF power amplifier circuit and RF transmitter and terminal including it 有权
    射频功率放大器电路和射频发射器和终端包括它

    公开(公告)号:US20060220739A1

    公开(公告)日:2006-10-05

    申请号:US11096938

    申请日:2005-04-01

    IPC分类号: H03G3/20

    摘要: A RFPA (radio frequency power amplifier) circuit (150) which includes a RFPA (101), a supply voltage source (104), means (155) for applying to the RFPA a gain control bias voltage and a feedback control loop (156) for adjusting a voltage applied to the RFPA, the feedback control loop including a sampler (107) for sampling an output of the RFPA, a RF detector (109) for detecting a level of RF power sampled by the sampler, a comparator (115) for comparing an output signal from the RF detector with a reference signal, an integrator (117) for integrating an output signal of the comparator and a voltage regulator (151) having a first input from the integrator and a second input from the supply voltage source and an output connected to the RFPA, the regulator being operable to apply to the RFPA a supply voltage adjusted in response to an input signal from the integrator.

    摘要翻译: 包括RFPA(101),电源电压源(104)的RFPA(射频功率放大器)电路(150),用于向RFPA施加增益控制偏置电压的装置(155)和反馈控制回路(156) 用于调整施加到RFPA的电压,所述反馈控制回路包括用于对RFPA的输出进行采样的采样器(107);用于检测由采样器采样的RF功率电平的RF检测器(109),比较器(115) 用于将来自RF检测器的输出信号与参考信号进行比较,用于对比较器的输出信号进行积分的积分器(117)和具有来自积分器的第一输入的电压调节器(151)和来自电源电压源的第二输入 以及连接到所述RFPA的输出,所述调节器可操作以向所述RFPA施加响应于来自所述积分器的输入信号而调整的电源电压。