Coaxial tambo inoshandiswa kufambisa RF simba kubva kune imwe chiteshi kana chikamu kune mamwe madoko / zvikamu zvehurongwa.Yakajairika coaxial tambo inoshandiswa se microwave coaxial mutsara.Iyi fomu yewaya kazhinji ine maconductor maviri muchimiro checylindrical chakatenderedza axis yakajairwa.Zvose zvakaparadzaniswa ne dielectric material.Pamafafitera akadzika, fomu re polyethylene rinoshandiswa se dielectric, uye pakakwirira frequencies Teflon zvinhu zvinoshandiswa.
Mhando ye coaxial cable
Kune akawanda mafomu ecoaxial tambo zvichienderana neiyo conductor kuvaka uye nzira dzekudzivirira dzinoshandiswa.Coaxial tambo mhando dzinosanganisira yakajairwa coaxial tambo sezvatsanangurwa pamusoro pamwe negasi-yakazadzwa coaxial tambo, articulated coaxial tambo, uye bi-waya shielded coaxial tambo.
Flexible coaxial tambo dzinoshandiswa mukutepfenyura kweterevhizheni kugamuchira antenna ane ekunze conductor akagadzirwa nefoil kana braid.
Pama microwave frequency, conductor yekunze yakaoma uye dielectric ichave yakasimba.Mune gasi-akazadzwa coaxial tambo, iyo yepakati conductor inogadzirwa neatete ceramic insulator, zvakare achishandisa polytetrafluoroethylene.Dry nitrogen inogona kushandiswa se dielectric material.
Mune articulated coax, insulator yemukati inosimudzwa yakatenderedza mukati conductor.yakatenderedza conductor yakadzivirirwa uye yakatenderedza iyi inodzivirira insulating sheath.
Mune kaviri-yakadzivirirwa coaxial tambo, maviri akaturikidzana ekudzivirira anowanzo kupihwa nekupa yemukati nhovo uye yekunze nhovo.Izvi zvinodzivirira chiratidzo kubva kuEMI uye chero mwaranzi kubva kune tambo inobata masisitimu ari pedyo.
Coaxial mutsetse hunhu impedance
Iyo hunhu impedance yeyakakosha coaxial tambo inogona kutsanangurwa uchishandisa inotevera formula.
Zo = 138/sqrt(K) * Log(D/d) Ohms
mu,
K ndiyo dielectric nguva dzose ye insulator pakati pemukati nekunze conductors.D ndiyo dhayamita yeconductor yekunze uye d ndiyo dhayamita yemukati conductor.
Zvakanakira kana Zvakanakira zveCoaxial Cable
Zvinotevera zvakanakira kana zvakanakira coaxial tambo:
➨Nekuda kwekuita kweganda, tambo dzekoaxial dzinoshandiswa mukukwirisa frequency application (> 50 MHz) dzinoshandisa copper cladding yepakati conductor.Iyo ganda mhedzisiro inokonzerwa neakakwira frequency masaini anopararira pamwe nekunze kweiyo conductor.Inowedzera simba rekusimba retambo uye inoderedza uremu.
➨Coaxial cable inodhura zvishoma.
➨Kondakita yekunze mucoaxial tambo inoshandiswa kunatsiridza kudzikama nekudzivirira.Izvi zvinoitwa nekushandisa yechipiri foil kana braid inonzi sheath (yakasarudzwa C2 muFigure 1).Iro jekete rinoshanda sechidzitiro chezvakatipoteredza uye rinogadzirwa mukati meyakakosha coaxial tambo semurazvo wemoto.
➨Haisi kubatwa neruzha kana kukanganisa (EMI kana RFI) pane tambo dzakamonyoroka.
➨Kuenzaniswa nepeya yakamonyoroka, inotsigira yakakwirira-bandwidth chiratidzo chekufambisa.
➨Iri nyore kuisa waya uye kuwedzera nekuda kwekuchinjika.
➨Inobvumira huwandu hwekutapurirana, coaxial tambo ine zvirinani zvekudzivirira zvinhu.
Kuipa kana Kuipa kweCoaxial Cable
Izvi zvinotevera kuipa kweiyo coaxial tambo:
➨Sizi huru.
➨Kuisa daro refu kunodhura nekuda kwekukora uye kuoma kwayo.
➨Sezvo tambo imwe chete ichishandiswa kutumira masaini mukati metiweki yese, kana tambo imwe ikatadza, network yese inodzika.
➨Kudzivirirwa chinhu chinonetsa zvikuru sezvo zviri nyore kuteerera pacoaxial tambo nekuityora nekuisa T-connector (BNC type) pakati pezviviri.
➨Inofanirwa kudzika midzi kudzivirira kukanganisa.
Nguva yekutumira: Zvita-15-2023
