带有电流告警的平衡式低噪声放大器的设计仿真与实现  

Design and Implementation of Balanced Low-Noise Amplifier with Current Alarm

作　　者：吴一多[1] 陈晓光[1] 宋汉斌[1] 

机构地区：[1]复旦大学通信科学与工程系,上海200433

出　　处：《电子器件》2009年第4期762-766,770,共6页Chinese Journal of Electron Devices

摘　　要：给出了一种带有电流告警的集成低噪声放大器的设计方案和测试结果,采用集总元件和微带线混合匹配的网络,利用ADS软件完成设计和仿真。放大器在1710～1780MHz频率范围内,增益为16.5±0.5dB,噪声系数小于1dB,回波损耗大于20dB。测试结果满足给定指标的要求,证明了该设计方案的可行性。A design scheme and test results of an integrated low noise balanced amplifier with current alarm are described.Matched networks are designed using a micro-strip and lumped elements structure.Circuit design and simulation are performed with ADS.The amplifier provides a gain of 16.5±0.5 dB,return loss of-20 dB and a noise figure below 1 dB in the frequency range of 1710~1780 MHz.Test results show that the circuit has met the specifications.

关 键 词：平衡式放大器 噪声系数 电流告警 

分 类 号：TN722.3[电子电信—电路与系统]