一种增强型E-PHEMT管的宽带低噪声放大器设计 |
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引用本文: | 张杨.一种增强型E-PHEMT管的宽带低噪声放大器设计[J].中国科技博览,2012(9):117-118. |
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作者姓名: | 张杨 |
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作者单位: | 中国电子科技集团公司第五十四研究所 |
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摘 要: | 1引言
LownoiseamDlifier(LNA)isamodemmicrowavecommunication,radar.electronicwarfaresystemimportantcomponent,itisinthefront0fthereceivingsystem.theantennareCeiyestheweakRFsignallinearamplification,whilesuppressingnoise,improvethesystemsensitivity.DuetoLNAinthereceingsysteminthespecialpositionandrole.thecomponentdesignofthereceivingsystempaysakeyroleintheperformanceindex.Thelownoiseamplifierusingmonolithicmicrowaveintegratedcircuit(MMlC)technology.allactivedevices(suchasabipolartransistororfieldeffecttransistor)andpassivedevice(suchasaresistor,inductor.capacRorandtransmissionlines)areallintegratedinasemi—conductorchip,inordertoachievea10wnoiseampUfyingfunction,hastheadvantagesofsmallsize,lightweight,lowcostandhighrehability.
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关 键 词: | E-PHEMT 放大器设计 低噪声 增强型 宽带 radar |
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