X、Ku波段宽带低噪声放大器的设计  

Design of X and Ku band broadband low-noise amplifier

作　　者：何川[1] 孙玉发[1] 贾世红 

机构地区：[1]安徽大学电子信息工程学院,安徽合肥230601 [2]合肥锐捷特种电子设备厂,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2011年第10期1510-1513,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(60771034)

摘　　要：文章利用有损匹配的方法设计了一种覆盖X、Ku波段的宽带低噪声放大器,其工作频率为8～18GHz,带内功率增益大于32dB,增益平坦度小于3dB,输入输出端口的回波损耗S11和S22均优于-7dB,噪声系数小于2.8dB,最大输出功率为16dBm,且具有工作频带宽、输入输出匹配结构简单的特点。A broadband HEMT low-noise amplifier which operates in both X and Ku bands is designed by using the lossy matching method. Having been measured from 8. 0 GHz to 18 GHz, the amplifier achieves a power gain greater than 32 dB with a good flatness of 3 dB only. The input and output return loss（S11 and S22 ） are both better than --7 dB, the maximum noise figure is 2.8 dB, and the maximum output power is 16 dBm. The amplifier has a simple input and output matching network and a broad frequency band.

关 键 词：宽带放大器 有损匹配 低噪声 高电子迁移率晶体管 

分 类 号：TN722.3[电子电信—电路与系统]