Hauv kev siv high-speed, kev xaiv cov khoom siv hlau thiab cable ua lub luag haujlwm tseem ceeb hauv kev ua kom pom kev ua tau zoo thiab kev ntseeg tau. Qhov kev thov kom ceev cov ntaub ntawv kis tus nqi thiab nce bandwidth yuav tsum tau ua tib zoo xav txog ntau yam thaum xaiv cov khoom tsim nyog. Kab lus no qhia txog cov ntsiab lus tseem ceeb los xav txog thaum xaiv cov khoom siv hluav taws xob ceev thiab cov khoom siv cable, muab kev nkag siab txog yuav ua li cas cov ntaub ntawv zoo tuaj yeem txhim kho cov teeb liab kev ncaj ncees, txo cov teeb liab poob, thiab ua kom cov ntaub ntawv sib kis tau zoo.
Teeb liab kev ncaj ncees thiab attenuation
Kev tuav lub teeb liab kev ncaj ncees yog qhov tseem ceeb hauv kev siv high-speed. Cov ntaub ntawv xaiv cov hlau thiab cable yuav tsum pom cov teeb liab qis qis, txo qhov poob ntawm lub teeb liab lub zog thaum sib kis. Cov ntaub ntawv uas tsis tshua muaj dielectric tsis tu ncua thiab poob tangent, xws li high-density polyethylene (HDPE) los yog polytetrafluoroethylene (PTFE), pab khaws cov teeb liab zoo, txo distortion, thiab xyuas kom meej cov ntaub ntawv kis tau tus mob nyob ntev.
Impedance Tswj
Qhov tseeb impedance tswj yog qhov tseem ceeb hauv kev sib txuas lus siab. Cov khoom siv hlau thiab cable yuav tsum muaj cov khoom siv hluav taws xob zoo sib xws kom muaj cov yam ntxwv zoo ib yam impedance. Qhov no ua kom cov teeb liab nthuav tawm kom raug, txo cov teeb liab cuam tshuam, thiab txo qhov kev pheej hmoo ntawm cov ntaub ntawv yuam kev lossis teeb liab degradation. Xaiv cov khoom siv nrog kev ua siab ntev thiab ruaj khov cov yam ntxwv, xws li foamed polyolefin los yog fluorinated ethylene propylene (FEP), pab ua kom tiav impedance tswj.
Crosstalk thiab EMI Mitigation
Kev kub ceev hlau thiab cable raug cuam tshuam rau crosstalk thiab electromagnetic cuam tshuam (EMI). Kev xaiv cov khoom tsim nyog tuaj yeem pab txo cov teeb meem no. Cov ntaub thaiv npog, xws li aluminium ntawv ci lossis braided tooj liab shields, muab kev tiv thaiv zoo rau sab nraud EMI. Tsis tas li ntawd, cov ntaub ntawv uas tsis tshua muaj crosstalk, xws li twisted khub configurations los yog cov ntaub ntawv nrog optimized rwb thaiv tsev geometries, pab txo qhov tsis xav tau teeb liab coupling thiab txhim kho tag nrho cov teeb liab kev ncaj ncees.
Environmental Considerations
Kev khiav hauj lwm tej yam kev mob thiab ib puag ncig tej yam yuav tsum tau coj mus rau hauv tus account thaum xaiv high-ceev xaim thiab cable cov ntaub ntawv. Kev hloov pauv kub, noo noo, tshuaj lom neeg, thiab UV raug tuaj yeem cuam tshuam cov khoom siv thiab kev ua haujlwm ntev. Cov ntaub ntawv uas muaj thermal stability zoo, tsis muaj dej tsis kam, tshuaj tiv thaiv, thiab UV tsis kam, xws li cross-linked polyethylene (XLPE) lossis polyvinyl chloride (PVC), feem ntau nyiam los xyuas kom ntseeg tau tias kev ua tau zoo nyob rau hauv ib puag ncig ntau yam.
Xaiv txoj cai high-speed hlau thiab cov ntaub ntawv cable yog qhov tseem ceeb rau kev ua tiav qhov kev ua tau zoo, teeb pom kev zoo, thiab kev ntseeg tau. Kev txiav txim siab xws li teeb liab attenuation, impedance tswj, crosstalk thiab EMI mitigation, thiab ib puag ncig yam tseem ceeb thaum xaiv cov khoom. Los ntawm ua tib zoo tshuaj xyuas cov yam no thiab xaiv cov khoom siv nrog cov khoom siv hluav taws xob uas tsim nyog, txhua yam, thiab ib puag ncig, cov neeg tsim khoom tuaj yeem ua tau raws li qhov xav tau ntawm cov ntawv thov kev kub ceev thiab ua kom cov ntaub ntawv sib kis tau zoo thiab ntseeg tau.
Post lub sij hawm: May-25-2023