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    High frequency power amplifier circuit
    63.
    发明专利
    High frequency power amplifier circuit 有权
    高频功率放大器电路

    公开(公告)号：JP2006270146A

    公开(公告)日：2006-10-05

    申请号：JP2005081028

    申请日：2005-03-22

    Applicant: Renesas Technology Corp ,  株式会社ルネサステクノロジ

    Inventor： FURUYA TOMIO ,  ISHIMOTO KAZUHIKO ,  TANAKA HIROYUKI

    IPC: H03F3/21 ,  H03F1/30 ,  H03F3/24 ,  H04B1/04

    CPC classification number: H03G3/3042 ,  H03G3/004 ,  H03G3/3047 ,  H03G2201/708

    Abstract: PROBLEM TO BE SOLVED: To provide an output power control technology which can reduce the temperature dependency of output power in a high frequency power amplifier circuit for controlling the output power by controlling an operation power supply voltage (power supply voltage) depending on an output request level while sustaining a bias voltage applied to a control terminal of an amplifying element at a constant level.
    SOLUTION: In a high frequency power amplifier circuit (210) for controlling the output power by controlling the operation power supply voltage supplied to an amplifying element depending on an output request level while sustaining a bias voltage applied to the control terminal (gate terminal or base terminal) of amplifying elements (211-213) at a constant level so that the amplifying elements operate in a saturation region, an operation power supply voltage control circuit (220) for controlling the operation power supply voltage of the amplifying element depending on the output request level is provided with an element (diode D1) having temperature dependency, and an operation power supply voltage control circuit is arranged to generate an operation power supply voltage depending on temperature characteristics of the element and supply the voltage to the amplifying element.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种输出功率控制技术，其可以通过控制依赖于的操作电源电压（电源电压）来降低用于控制输出功率的高频功率放大器电路中的输出功率的温度依赖性 输出请求电平，同时维持施加到放大元件的控制端子处的恒定电平的偏置电压。 解决方案：在用于通过根据输出请求电平控制提供给放大元件的工作电源电压来控制输出功率的高频功率放大器电路（210）中，同时维持施加到控制端子（栅极 端子或基极端子）以恒定电平放大元件（211-213），使得放大元件工作在饱和区域;操作电源电压控制电路（220），用于控制放大元件的工作电源电压依赖 在输出请求电平上设置有具有温度依赖性的元件（二极管D1），并且操作电源电压控制电路被布置成根据元件的温度特性产生操作电源电压并将电压提供给放大元件 。 版权所有（C）2007，JPO＆INPIT

    이동통신시스템의 자동이득 제어장치
    65.
    发明公开
    이동통신시스템의 자동이득 제어장치 无效
    用于移动通信系统的AGC装置

    公开(公告)号：KR1020040042724A

    公开(公告)日：2004-05-20

    申请号：KR1020020071312

    申请日：2002-11-15

    Applicant: 에릭슨 엘지 주식회사

    Inventor： 구본엽

    IPC: H04B7/005

    CPC classification number: H04W52/52 ,  H03G3/3042 ,  H03G2201/708 ,  H04W52/226

    Abstract: PURPOSE: An AGC(Automatic Gain Control) apparatus for a mobile communication system is provided to compensate an AGC voltage considerably changed by characteristic values of components changed according to a temperature. CONSTITUTION: A temperature sensor(20) senses a temperature. A control unit(19) calculates a compensation value according to the sensed temperature. A correcting unit(21) selects a resistance value by the compensation value calculated in the control unit(19), varies a reference voltage according to the selected resistance value, and corrects an AGC voltage. The correcting unit(21) has a digital resistance meter(18). A resistance value is varied in the digital resistance meter(18) by the compensation value for obtaining a desired signal at room temperature.

    Abstract translation: 目的：提供一种用于移动通信系统的AGC（Automatic Gain Control，自动增益控制）装置，用于补偿根据温度改变的组件的特征值而显着改变的AGC电压。 构成：温度传感器（20）感测温度。 控制单元（19）根据检测到的温度来计算补偿值。 校正单元（21）通过在控制单元（19）中计算的补偿值来选择电阻值，根据所选择的电阻值改变参考电压，并校正AGC电压。 校正单元（21）具有数字电阻计（18）。 电阻值在数字电阻表（18）中通过用于在室温下获得期望信号的补偿值而变化。

    프로그램머블 가변 이득 증폭기
    66.
    发明公开
    프로그램머블 가변 이득 증폭기 有权
    可编程增益放大器

    公开(公告)号：KR1020110040589A

    公开(公告)日：2011-04-20

    申请号：KR1020090097922

    申请日：2009-10-14

    Applicant: 한국과학기술원

    Inventor： 이상국 ,  한석균 ,  이정선 ,  규엔허이휴

    IPC: H03G3/30

    CPC classification number: H03G1/0088 ,  H03F3/45179 ,  H03G1/0023 ,  H03G1/0029 ,  H03G2201/708

    Abstract: PURPOSE: A programmable variable gain amplifier is provided to obtain a high linearity, a wide bandwidth, and the dB linear section of a wide gain variation width by using a binary weighted switching method. CONSTITUTION: A first transistor array is comprised of an input transistor pair. A first binary weighted transistor array(100) is comprised of an activated differential pair(102) and n differential pairs(104). A second transistor array is comprised of a connection load of a diode. A second binary weighted transistor array(200) is comprised of an activated differential pair(202) and a differential pair(202) and n differential pairs(204) connected with the diode. An active current source(300) is comprised of two PMOS transistors which absorb a current from an input transistor load connected with the diode. A common mode feedback circuit(400) stabilizes a DC output voltage.

    Abstract translation: 目的：通过使用二进制加权切换方法，提供可编程可变增益放大器以获得高线性度，宽带宽和宽增益变化宽度的dB线性部分。 构成：第一晶体管阵列由输入晶体管对组成。 第一二进制加权晶体管阵列（100）由激活的差分对（102）和n个差分对（104）组成。 第二晶体管阵列由二极管的连接负载组成。 第二二进制加权晶体管阵列（200）由激活的差分对（202）和差分对（202）和与二极管连接的n个差分对（204）组成。 有源电流源（300）由两个PMOS晶体管组成，PMOS晶体管从与二极管连接的输入晶体管负载吸收电流。 共模反馈电路（400）稳定直流输出电压。

    기지국의 송신 출력 보상 장치 및 방법
    67.
    发明公开
    기지국의 송신 출력 보상 장치 및 방법 无效
    用于补偿基站的传输输出的装置及其方法

    公开(公告)号：KR1020040050455A

    公开(公告)日：2004-06-16

    申请号：KR1020020078297

    申请日：2002-12-10

    Applicant: 에릭슨 엘지 주식회사

    Inventor： 최재민

    IPC: H04B7/155

    CPC classification number: H04W88/08 ,  H03G2201/708 ,  H04B7/15535 ,  H04W52/226

    Abstract: PURPOSE: A device for compensating the transmission output of a base station is provided to prestore characteristic differences of each RF transmitter in a storage, so that a base station controller can increase/decrease the existing transmission output as many as a difference value read from the storage, thereby realizing a regular transmission output as compensating a fine transmission output difference. CONSTITUTION: A modulator(611) receives I and Q signals, modulates the received signals, and transmits the modulated signals to a frequency up converter(612). The frequency up converter(612) converts the received signals into IF signals, up-converts the IF signals into RF signals, and transmits the RF signals to an attenuator(613). A controller(614) receives a difference value of a frequency band extracted from an offset storage(617) by a base station controller(600). A DAC(615) converts the transmitted difference value into an analog voltage value, and transmits the analog voltage value to the attenuator(613). The attenuator(613) controls outputs of the RF signals by using the analog voltage value. The offset value storage(617) compares the RF outputs with other RF outputs, and stores differences between the compared RF outputs.

    Abstract translation: 目的：提供一种用于补偿基站的传输输出的设备，用于在存储器中预先存储每个RF发射机的特征差异，使得基站控制器可以增加/减少现有的传输输出，如从 存储，从而实现规则的传输输出，以补偿精细的传输输出差异。 构成：调制器（611）接收I和Q信号，调制接收到的信号，并将调制信号发送到升频转换器（612）。 上变频器（612）将接收的信号转换成IF信号，将IF信号上变频成RF信号，并将RF信号发送到衰减器（613）。 控制器（614）接收由基站控制器（600）从偏移存储器（617）提取的频带的差值。 DAC（615）将发送的差值转换为模拟电压值，并将模拟电压值发送到衰减器（613）。 衰减器（613）通过使用模拟电压值来控制RF信号的输出。 偏移值存储（617）将RF输出与其他RF输出进行比较，并存储比较的RF输出之间的差异。

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