标签: 有损

有损传输线的实际特性ApplicationNotePracticalCharacterizationofLossyTransmissionLinesUsingTDRIntroductionLossesindigitalinterconnectswerenotveryimportantatthelowerfrequencies,butasthecommunicationsandcomputersystemdesignsaremovingintothegigahertzterritory,thispicturechangesrapidly.High-frequencyeffectssuchasskineffectanddielectriclossbegintoaffectsignalintegrityinthesehigh-speeddigitalsystemsinthemostprofoundmanner,andthereforemustbeunderstoodandcharacterized.36inchlongmicrostripinFR4.Thislengthisoftenfoundinbackplanesthathavedaughtercardsconnected.EffectofLossesonSignalPropagationDClosses,arisingfromtheDCresistanceoftheconductorinthedigitalinterconnect,willmainlyaffecttheamplitudeofthesignala……