一种超宽带低噪声放大器  

A new ultra-wideband and low-noise amplifier

作　　者：徐洪波[1] 陈向东[1] 周建明[1] 

机构地区：[1]西南交通大学信息科学与技术学院,四川成都610031

出　　处：《电子技术应用》2009年第6期78-80,84,共4页Application of Electronic Technique

基　　金：教育部新世纪优秀人才支持计划支持项目(A0160419950120)

摘　　要：提出一个共源共栅结构的超宽带低噪声放大器。该电路基于台积电0.18μmCMOS工艺,工作在3GHz～5GHz频率下,用来实现超宽带无线电。仿真结果表明,该低噪声放大器有最大13.6dB的增益。整个频段噪声系数小于1.9dB。输入和输出反射损耗都小于-11dB。一阶压缩点在-15dBm左右。功耗为18.7mW。An ultra-wideband low noise amplifier with cascode structure is presented in this paper.This circuit,based on TSMC 0.18μm CMOS technology,operating from 3 GHz to 5 GHz,is used to realize uhra-wideband radio.The simulation results indicate that the low noise amplifier provides a maximum gain of 13.6 dB, and noise figure of the whole spectrum is smaller than 1.9 dB. The input and output return losses are below -11 dB. The 1 dB compression point is about -15 dBm,and the power consumption is 18.7 mW.

关 键 词：超宽带 低噪声放大器 共源共栅 输入匹配 

分 类 号：TN722.3[电子电信—电路与系统]