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1、TheintroductionofmicrowavecommunicationMicrowavecommunicationisthetransmissionofsignalsviaradiousingaseriesofmicrowavetowers.Microwavecommunicationisknownasaformof"lineofsight"communication,becausetheremustbenothingobstructingthetransmissionofdatabetweent
2、hesetowersforsignalstobeproperlysentandreceived.Itistheuseofwavelengthin0.1millimeterto1mbetweentheelectromagneticwave,MicrowaveCommunication.Microwavecommunicationdon'tneedsolidmedium,whenbetweentwopointslinerangewhenbarrier-freecanusemicrowavetransmissi
3、on.Usingmicrowavecommunicationadvantagesoflargecapacity,goodqualityandcanspreadtofardistance,soisthenationalnetworkisakindofimportantmeansofcommunication,andiswidelyusedinallkindsofspecialnetwork.introductionChinamicrowavecommunicationwidelyusedL,S,C,Xthe
4、frequencyband,Kfrequencybandisstillinthedevelopmentofapplication.Becausemicrowavefrequencyisextremelyhigh,wavelengthandveryshort,anditsintheairandlightwavepropagationcharacteristicssimilar,alsoisstraightforward,meetsthebarrierwasreflexorwasblocked,somicro
5、wavecommunicationmainwayisstadiacommunication,morethanstadialaterneedrelaying.Generallyspeaking,theresultoftheearthandtheinfluenceandspacetransmissionloss,every50kmorso,youneedtosetrelaystation,willwaveamplificationforwardandextension.Thiskindofcommunicat
6、ionmode,alsoknownasmicrowaverelaycommunicationorsaymicrowaverelaycommunication.Longdistancemicrowavecommunicationmainsmaypassthroughdozensoftimesandthenspreadtothousandsofkilometerscanstillkeephighcommunicationquality.BriefdevelopmentThedevelopmentofmicro
7、waveiswiththedevelopmentofwirelesscommunicationareinseparable.MicrowaveCommunicationTechnologywasDevelopedinthe1940'sThetechnologyusedformicrowavecommunicationwasdevelopedintheearly1940'sbyWesternUnion.Thefirstmicrowavemessagewassentin1945fromtowerslocate
8、dinNewYorkandPhiladelphia.Followingthissuccessfulattempt,microwavecommunicationbecamethemostcommonlyuseddatatransmissionmethodfortelecommunicationsserviceproviders.In1901MaKeNiUSES800KHZmediumwavesignalfromBritainto
