公开(公告)号：KR1020020055473A

公开(公告)日：2002-07-09

申请号：KR1020000083709

申请日：2000-12-28

Applicant: 한국과학기술원

Inventor： 권익진 ,  길준호 ,  신형철

IPC: H03F1/26

CPC classification number: H03F3/193 ,  H03F1/223 ,  H03F2200/168 ,  H03F2200/294 ,  H03F2200/372

Abstract: PURPOSE: A low power and noise amplifier is provided to obtain a high power gain with a low power and improve a linearity. CONSTITUTION: The low power and noise amplifier has a cascode configuration having a common source transistor(M1) and a common gate transistor(M2) which are connected to each other in parallel. A common source transistor(M3) is connected to the common source transistor(M1) and the common gate transistor(M2) in series. Inductors(Lg,Ls) are used for an input impedance matching. An inductor(Ld) and a capacitor(C3) are used for an output impedance matching. A source of the common source transistor(M3) is bypassed by a bypass capacitor(C2). A signal is amplified by a gain of the cascode configuration. The amplified signal is inputted to a gate of the common source transistor(M3) so that the amplified signal is coupled and amplified by a capacitor(C1).

Abstract translation: 目的：提供低功耗和噪声放大器，以获得具有低功率的高功率增益并提高线性度。 构成：低功率和噪声放大器具有共源共栅配置，其具有并联连接的公共源极晶体管（M1）和公共栅极晶体管（M2）。 公共源晶体管（M3）串联连接到公共源极晶体管（M1）和公共栅极晶体管（M2）。 电感（Lg，Ls）用于输入阻抗匹配。 电感（Ld）和电容（C3）用于输出阻抗匹配。 公共源晶体管（M3）的源极由旁路电容器（C2）旁路。 信号通过共源共栅配置的增益放大。 放大的信号被输入到公共源极晶体管（M3）的栅极，使得放大的信号被电容器（C1）耦合和放大。