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一种极低噪声高增益微波单片低噪声放大器\"

黄!华A!张海英!杨!浩!尹军舰!朱!!叶甜春

󰀢中国科学院微电子研究所󰀡北京!#󰀤$$$!?

摘要󰀡报道了一种用于卫星通讯系统󰀡基于$Q@B栅长增强型赝配高电子迁移率晶体管的两级级联微波单片低噪#

声放大器9采用集总参数元件来缩小电路面积进而在整个芯片内完成阻抗匹配9在@该低噪声$$端口测试条件下󰀡放大器在=噪声系数小于$增益大于!回波损耗小于^#这是至今为止报Q@%SQ=R'J频率范围内󰀡Q?L<󰀡%L<󰀡$L<9道的增益高于!它主要归因于采用具有优异$L<的低噪声放大器中具有最小噪声系数的微波单片低噪声放大器󰀡噪声性能的增强型赝配高电子迁移率晶体管以及本文提出的源极串联电感结合漏极应用一个小的稳定电阻来减小输入匹配网络寄生电阻的电路结构9

关键词󰀡低噪声放大器󰀥增强型赝配高电子迁移率晶体管󰀥微波单片集成电路

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