公开(公告)号：KR1020030041663A

公开(公告)日：2003-05-27

申请号：KR1020010072727

申请日：2001-11-21

Applicant: 한국전자통신연구원

Inventor： 장병준 ,  주인권 ,  염인복 ,  이성팔

IPC: H03G3/00

Abstract: PURPOSE: An apparatus and a method for controlling a gain of an RF amplifier of a voltage driving type are provided to simplify a structure of a gain controller of the RF amplifier by controlling an attenuation portion formed with a pin diode with an input voltage. CONSTITUTION: A D/A conversion portion(31) converts a control bit signal as a digital signal to an analog signal. An offset voltage generation portion(32) generates a proper offset voltage and amplifies the generated offset voltage. An adder portion(33) adds the offset voltage according to a variation of temperature to an output voltage of the D/A conversion portion in order to drive an attenuation portion(34). The attenuation portion receives the added voltage from the adder portion in order to change a resistant value and control a gain of an RF amplifier(20).

Abstract translation: 目的：提供一种用于控制电压驱动型的RF放大器的增益的装置和方法，以通过控制由具有输入电压的pin二极管形成的衰减部分来简化RF放大器的增益控制器的结构。 构成：D / A转换部分（31）将作为数字信号的控制位信号转换为模拟信号。 偏移电压产生部分（32）产生适当的偏移电压并放大产生的偏移电压。 加法器部分（33）根据温度变化将偏移电压与D / A转换部分的输出电压相加以驱动衰减部分（34）。 衰减部分从加法器部分接收加法电压，以改变电阻值并控制RF放大器（20）的增益。

公开(公告)号：KR1020040013282A

公开(公告)日：2004-02-14

申请号：KR1020020046139

申请日：2002-08-05

Applicant: 한국전자통신연구원

Inventor： 장병준 ,  염인복 ,  이성팔

IPC: H03H7/00

CPC classification number: H03H7/24 ,  H03F1/30 ,  H03H7/01

Abstract: PURPOSE: A circuit for compensating the temperature of an attenuator and a method for the same are provided to drive the attenuator having a predetermined temperature characteristics without performing a complex temperature test and a tuning work. CONSTITUTION: A circuit for compensating the temperature of an attenuator includes an amplifier(11), an attenuator(20) and a temperature compensation unit(25). The amplifier(11) amplifies and outputs the radio frequency(RF) input signal. The attenuator(20) is provided with a pin-diode(21) for controlling the RF output level by receiving the amplified signal from the amplifier(11). The pin-diode(21) changes its characteristics in response to the input voltage. And, the temperature compensation unit(25) includes a temperature compensation pin-diode(41) for compensating the temperature characteristics of the attenuator(20). The temperature compensation unit(25) controls the driving of the attenuator(20) through the reference voltage by using the temperature compensation pin-diode(41).

Abstract translation: 目的：提供用于补偿衰减器的温度的电路及其方法，以驱动具有预定温度特性的衰减器，而不进行复杂的温度测试和调谐工作。 构成：用于补偿衰减器的温度的电路包括放大器（11），衰减器（20）和温度补偿单元（25）。 放大器（11）放大并输出射频（RF）输入信号。 衰减器（20）设置有针二极管（21），用于通过从放大器（11）接收放大的信号来控制RF输出电平。 引脚二极管（21）响应于输入电压改变其特性。 并且，温度补偿单元（25）包括用于补偿衰减器（20）的温度特性的温度补偿二极管（41）。 温度补偿单元（25）通过使用温度补偿针二极管（41）来控制通过参考电压的衰减器（20）的驱动。