一种DC_4GHz微波限幅器的设计方法

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201019SCIENCE&TECHNOLOGYINFORMATION○○0。,。。,,,,。。1:1.1。,。1.2。,,。,。,,。1.3。PIN。PIN,I。PIN,,I,I,I。,,I。,,,I;,,I。,I,I,。,I,I,。ID。I,,PIN,,,,I。PIN,I。PIN,,;,。,,,,。PIN,4GHz,,,,。2PIN,4,2。4,,2,。PIN,。。1。12。2,,,,,。,,,。,,,,,,。,,,,,。3(89)DC~4GHz(41266555)【】PINDC~4GHz,,4GHz,,,,。,。【】PIN;;【Abstract】ThispaperintroducesamathedofdesigningthemicrowavepasivelimiterwhichisdesignedbyusingPINdiodechipandtheworkingfrequencyisfromDCto4GHz.Themainelectrocircuitofthelimiteristhemicrostripbalun.Becauseofthewelldesigning,thelimiterhastheexcellentelectroniccharacteristicssuchasthelittleinsertionlossandthelowvoltagestandingwaveratio(VSWR).Withthecoaxialstructure,ithasthelittlevolumeandisconvenientfortheusers.Inthispaper,wefirstpresenttheworkingprincipleandthentherealizationprocess,atlastgivethemeasuringresults.【Keywords】PINdiode;Microwavelimiter;Microstripbalun137201019SCIENCE&TECHNOLOGYINFORMATION(84)MSComm1.RThreshold=1MSComm1.InputLen=0'IfMSComm1.PortOpen=FalseThenMSComm1.PortOpen=True'EndIfEndSub2.3MSCommOnComm()CommEvent,OnComm,。PrivateSubMSComm1_OnComm()Dimstr0AsString,str1AsString,str2AsStringDimcountAsIntegerDimSenddat(2)AsByteDimi,jAsIntegerDimRcvdat()AsByteDimdattempAsVariant',iAsIntegerSelectCaseMSComm1.CommEventCasecomEvReceiveDoUntilMSComm1.InBufferCount=2DoEventsLoopdattemp=MSComm1.Input'′Rcvdat=dattemp'′Label1.Caption=……MSComm1.Output=Senddat'′EndSelectEndSub3,PC,、,PC,PCModem。,Windows,,。【】[1],,.51.,2008,01.[2].C100:8051+Proteus.,2009,06.[3],,..,2009,03.[4]..,2008,09.:,,34,,,,。[:]●●,C#,、。,,(),。,,。。ASP.NET,,C#,VB,J#。.NET,。ASP,,。,。,。,,。、,、。MVC,、。,、,。,,。,、,,。【】[1],,,.Visio2002.,200311.[2][J].:,2007,28(4).[3],,.ASP.NET.,2006.:(1969—),,1991,。[:]●●○IT○●(137)1,SMA。::DC~4GHz;:1.5dB;:1.8;:10dBm。,,1。,。【】[1]...[2][]InderBahlPrakashBhartia....[3]..,1994.:,1999,,。[:](dB)(dBm)060011.31.39060021.21.359.5060031.41.269.289

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