简介:A0.18lmCMOSlownoiseamplifier(LNA)byutilizingnoise-cancelingtechniquewasdesignedandimplementedinthispaper.Current-reuseandself-biastechniqueswereusedinthefirststagetoachieveinputmatchingandreducepowerconsumption.ThecoresizeoftheproposedCMOSLNAcircuitwithoutinductorwasonly128lm9226lm.ThemeasuredpowergainandnoisefigureoftheproposedLNAwere20.6and1.9dB,respectively.The3-dBbandwidthcoversfrequencyfrom0.1to1.2GHz.Whenthechipwasoperatedatasupplyvoltageof1.8V,itconsumed25.69mW.ThehighperformanceoftheproposedLNAmakesitsuitableformultistandardlow-costreceiverfront-endswithintheabovefrequencyrange.
简介:关于芦苇,先来理清几个名称:苇,芦,蒹,葭。《诗经》里出现“芦苇”的有7篇诗,《秦风·蒹葭》是最有名的一篇了。因为芦苇生长的地方多在远离喧嚣的野村湖畔,所以深得隐逸之士的喜爱,成为文人雅士远离世俗、不慕功名、身心高洁的情感寄托。