标签: 100GHz

64GHzand100GHzVCOsin90nmCMOSusingoptimumpumpingmethodISSCC2004/SESSION24/TD:WIRELESSTRENDS:LOW-POWERAND60GHz/24.624.664GHzand100GHzVCOsin90nmCMOSUsingOptimumPumpingMethodLuizM.Franca-Neto,RalphE.Bishop,BradA.BloechelIntelR&DLabs,Hillsboro,OR90nmhighperformancelogicCMOStechnologyprovidestransistorswhicharetypicallyconditionallystableatfrequencieswellintothemillimeter-waverange(Fig.24.6.1);andunconditionallystableatfrequenciesclosetofmax.TheunconditionalstabilityallowstheuseofsimultaneouscomplexconjugatematchingatinputandoutputportsofeverytransistorintheVCO.Thismatchingoptimallypumpsenergyfromtheactivedevicetothepassivenetwork(optimalpumping)whichisessentialatfrequenciesclosetofmax,wheretransistorshavelittlegain.Inatypic……