X波段低噪声放大器设计分析  

Design of X-band Low Noise Amplifier

作　　者：赵云[1] 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081

出　　处：《无线电工程》2011年第6期43-46,共4页Radio Engineering

摘　　要：针对通信系统中信噪比的改善问题,分析了低噪声放大器的电路形式,确定了器件的选取方法,阐述了低噪声放大器的设计思路,介绍了使用ADS软件进行X波段低噪声放大器的设计。利用Fujits公司的FHX13X和Transcom公司的TC1201,两级级联,并对电路进行仿真和优化,判定放大器的稳定性。通过软件修正得到最终电路设计,经过最终数据分析,总结设计过程中的关键技术。To improve SNR in communication system,circuit selection for low noise amplifier is firstly analyzed and components selection methods are determined.Then the design idea of low power amplifier is given.Based on that,the use of ADS software for design of X-band LNA is introduced.Fujits FH13X and Transcom TC1201 chip are adopted with two-stage cascade scheme.The circuit is simulated and optimized to determine the amplifier stability.The final circuit design is obtained after correction with software.Finally,critical technologies used in the design are summarized based on data analysis.

关 键 词：低噪声 放大器 增益 噪声系数 驻波比 稳定性 

分 类 号：TN722.3[电子电信—电路与系统]