High-frequency power amplifier circuit and electronic part for communication
    4.
    发明授权
    High-frequency power amplifier circuit and electronic part for communication 有权
    高频功放电路和电子部件进行通讯

    公开(公告)号:US07116173B2

    公开(公告)日:2006-10-03

    申请号:US10498489

    申请日:2002-02-28

    IPC分类号: H03G3/10

    摘要: A wireless communication system has a first operation mode (GSM mode) for amplifying a phase-modulated high frequency signal with a high frequency power amplifier circuit and a second operation mode (EDGE mode) for amplifying a phase and amplitude-modulated high frequency signal with the amplifier circuit. The amplifier circuit has an input of a high frequency signal, with the amplitude and frequency being fixed in both the first and second operation modes, and operates by being controlled for the bias state of each amplifying stage in accordance with the output control signal produced by a control circuit based on the demanded output level (Vapc) and the detected output level (VSNS) so that the amplifier circuit performs signal amplification to meet the demanded output level.

    摘要翻译: 无线通信系统具有用于利用高频功率放大器电路放大相位调制的高频信号的第一操作模式(GSM模式)和用于放大相位和幅度调制的高频信号的第二操作模式(EDGE模式) 放大电路。 放大器电路具有高频信号的输入,振幅和频率在第一和第二操作模式中都是固定的,并且通过根据由放大级产生的输出控制信号被控制为每个放大级的偏置状态来操作 基于所需输出电平(Vapc)和检测输出电平(VSNS)的控制电路,使得放大器电路执行信号放大以满足所要求的输出电平。

    Electronic component for amplifying high frequency power and radio communication system
    6.
    发明申请
    Electronic component for amplifying high frequency power and radio communication system 失效
    用于放大高频电源和无线电通信系统的电子元件

    公开(公告)号:US20050245212A1

    公开(公告)日:2005-11-03

    申请号:US10520706

    申请日:2002-09-05

    摘要: A high-frequency power module as a component of a radio communication system capable of performing communications in two frequency bands such as GSM and DCS includes: a first transistor for output detection for receiving a signal which is the same as an input signal of a first power amplification transistor for amplifying a high frequency signal on the GSM side and a first current mirror circuit for passing current proportional to current of the transistor; and a second transistor for output detection for receiving an input signal of a second power amplification transistor for amplifying a high frequency signal on the DCS side and a second current mirror circuit for passing current proportional to current of the transistor. A sense resistor for converting current on the transfer side of the current mirror circuits to voltage, using the voltage as an output level detection signal, comparing the detected output level with a required output level, accordingly controlling the output level, and converting current transferred from the first and second current mirror circuits to voltage is shared by the GSM and DCS.

    摘要翻译: 作为能够在两个频带(例如GSM和DCS)中进行通信的无线电通信系统的组件的高频功率模块包括:用于输出检测的第一晶体管,用于接收与第一个信号的输入信号相同的信号 用于放大GSM侧的高频信号的功率放大晶体管和用于通过与晶体管的电流成比例的电流的第一电流镜电路; 以及用于输出检测的第二晶体管,用于接收用于放大DCS侧的高频信号的第二功率放大晶体管的输入信号和用于通过与晶体管的电流成比例的电流的第二电流镜电路。 一种检测电阻器,用于将电流镜电路的传输侧的电流转换为电压,使用电压作为输出电平检测信号,将检测到的输出电平与所需的输出电平相比较,从而控制输出电平,并转换从 第一和第二电流镜电路到电压由GSM和DCS共享。