lojmikak
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 Wysłany: Śro 19:19, 01 Gru 2010 Temat postu: MAC Mascara Millimeter-wave monolithic integrated |
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Millimeter-wave monolithic integrated low noise amplifier circuit
Have a good performance,[link widoczny dla zalogowanych], input and output standing wave ratio is less than 2, the gain is greater than 20dB, noise figure of less than 4. The chip has been successfully applied in the 24GHz automotive collision avoidance radar receiver front end. References [1] RobertsonID. RFICANDMMICdesignandtechnology. Lon-don: InstituteofElectricalEngineers. 2001.183-250l2lLehmannR, HestonD. X-bandmonolithicseriesfeedbackLAN. IEEETransMicrowaveTheoryTech, 1985,[link widoczny dla zalogowanych],33 (12): 1561566l3JChouH, LiuC, ChenT. Ka-bandmonolithicGaAsPHEMTlownoiseanddriveamplifiers. In: ProceedingsofAsia-PacificMicrowaveConference2001. Taiwan. 2001.139-142 [4] Wang C, Qian Rong,[link widoczny dla zalogowanych], Sun Xiaowei and so on. Since the partial s-band high-gain low noise amplifier MMIC. Semiconductors, 2005,26 (4) :786-788 [5] \Microwave integrated circuits. Beijing: National Defence Industry Press, 2OOO. 120-164AmillimeterwaveMMIClownoiseamplifierWangChuang, QianRong, SunXiaowei (ShanghaiInstituteofMicrosystemandInformationTechnology, ChineseAcademySciences, Shanghai200050) (GraduateSchoolofChineseAcademySciences,[link widoczny dla zalogowanych], Bering100039) AbstractAmillimeterwaveMMIClownoiseamplifier (UA) wasdevelopedonanadvanced0.25tanPI {0E swelling process. TheorganizationwiththreecascadedcircuitsWasusedforunceasinglyincreasingthegatewidth. esourcefeedinductorsappropriatetothegoodnoisefigure (NF) andtheinputvoltagestandingwaveratio (VSWRin) wereadopted. Anewre. sis-tancesandcapacitorsnetworkattachmenttothesourcesanddrainiasWasappliedtothesuppressionofthelowfrequen-cyoscillations. Forconvenience, thesalnesetofnegativeandpositivevoltagesourcesWasprovidedthroughtheresistanceinchiptothreecascadecircuits, whichgaveanexcellentperformancetest. TheVSWinandVSW called tofLNAwerebelow2. esmallsignalgainWaslargerthan15dBandtheNFWaslessthan3.0dB. esizeofthechipa coral anxious assmallas】 nlnl × 2mm × 0. 】 Nln1. Keywords: PHEMT, millimeterwave, MMIC,[link widoczny dla zalogowanych], lownoiseamplifier a 14 -
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