Daim ntawv thov tshwj xeeb ntawm micro coaxial cables kuj muaj qee yam peculiarities hauv cov khoom xaiv. Kab lus no yuav tsom mus rau kev xaiv cov khoom siv sab hauv, rwb thaiv tsev, thiab cov khoom siv sab nraud rau micro coaxial cables, thiab muab cov lus piav qhia ntxaws.
1, Xaiv cov khoom siv sab hauv tus neeg xyuas pib
Cov conductors sab hauv ntawm micro coaxial cables yog nyias nyias, tab sis qhov zaus ntawm kev siv thiab kev khiav hauj lwm kub ntawm cov cables kuj siab heev. Yog li, ib tus neeg xyuas pib tooj liab tsis yog qhov zoo tshaj plaws hauv tus neeg xyuas pib. Tooj liab yuav oxidize nyob rau hauv cov huab cua thiab tsim cov tawv nqaij oxide dub, tshwj xeeb tshaj yog thaum kub siab tshaj 80 degree, tus nqi oxidation accelerates. Thaum qhov kub nce mus txog 176 degree, oxidation yuav ceev heev. Kev tsim ntawm cov tawv nqaij oxide dub yuav ua rau txo qis hauv nws cov hluav taws xob ua haujlwm.
Qhov siab tshaj plaws ua haujlwm kub ntawm tooj liab conductors feem ntau txwv rau 100℃. Kev siv zaus feem ntau txwv rau qis dua 3000MHz. Copper clad steel hlau muaj lub zog siab thiab qaug zog ua haujlwm. Ntawm zaus tshaj 10MHz, qhov tsis kam ntawm tooj liab clad steel hlau yog yuav luag tib yam li cov khoom tooj liab hlau, thaum nws lub zog txhua yam yog peb npaug ntawm cov khoom tooj liab hlau.
Copper clad steel, silver plated tooj liab clad steel, los yog tin plated tooj liab clad steel hlau yog feem ntau siv los ua puab conductors rau micro coaxial RF cables. Txawm hais tias tin muaj hluav taws xob qis dua li tooj liab, nws muaj qhov zoo xws li oxidation tsis kam thiab corrosion kuj. Kev ua haujlwm kub feem ntau tuaj yeem ncav cuag 150 degree, thiab qee zaus, nws tuaj yeem ncav cuag 200 degree. Nyiaj plated tooj liab hlau muaj zoo corrosion kuj thiab ntau dua conductivity tshaj tooj liab, ua rau nws dav siv nyob rau hauv kub thiab high zaus tej yam kev mob. Nws qhov kub thiab txias ua haujlwm tsis tu ncua tuaj yeem ncav cuag 200℃, thiab nws luv luv -lub sij hawm siv kub tuaj yeem ncav cuag 250℃.
2, Kev xaiv cov khoom siv rwb thaiv tsev
Cov khoom siv rwb thaiv tsev feem ntau siv rau coaxial cables yog polyethylene. Qhov zoo ntawm cov khoom siv polyethylene rwb thaiv tsev yog cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, tsis muaj thermal tsis kam, thiab cov qauv ruaj khov; Qhov tsis zoo yog tias qhov dielectric tas li yog qhov loj, thiab qhov attenuation ntau dua thaum qhov zaus siab. Qhov siab tshaj plaws ua haujlwm kub ntawm polyethylene feem ntau yog 85 degree, yog li thaum yuav tsum tau kub siab, polytetrafluoroethylene (F4) thiab perfluoroalkoxy (F46) yuav tsum tau siv. Lawv muaj qhov zoo thermal thiab tshuaj stability, thiab lawv cov hluav taws xob ua tau zoo kuj zoo heev. Lub sijhawm ua haujlwm kub ntawm polytetrafluoroethylene tuaj yeem ncav cuag 250 degree, thiab lub sijhawm ua haujlwm ntev ntawm perfluoroethylene propylene tuaj yeem ncav cuag 200 degree.
3, Xaiv cov khoom siv hluav taws xob sab nraud
Qhov feem ntau siv cov neeg xyuas pib sab nrauv rau micro coaxial kab yog weaving, thiab weaving ntom feem ntau yog siab dua 95%. Qhov no feem ntau yog vim nws qhov kev sib kis ntau zaus, thiab cov kab hluav taws xob tiv thaiv kev tiv thaiv yog qhov loj (piv nrog cov tubular sab nrauv, qhov attenuation feem ntau yuav nce los ntawm 1.5 mus rau 4 zaug, tshwj xeeb tshaj yog nyob rau hauv high zaus qhov twg tus nqi attenuation yuav sharply nce).
Qhov kom zoo dua ntawm weaving yog tias lub cable yog qhov muag muag thiab yooj yim rau khoov. Cov tubular (tooj tooj liab, aluminium tube) sab nraud tus neeg xyuas pib muaj qhov zoo ntawm qhov qis qis, tiv thaiv zoo, muaj zog txhua yam, tsis muaj dej noo, thiab kev sib khi zoo; Qhov tsis zoo yog qhov tsis yooj yim, tso cai rau lub vojvoog khoov loj thiab tsis haum rau kev siv mobile.
Txoj kev kawg yog electroplating tus neeg xyuas pib sab nrauv, uas yuav tsum tau ua ntej txheej txheej ntawm 0.05 micron tuab tooj liab txheej ntawm rwb thaiv tsev siv tshuaj plating, thiab tom qab ntawd electroplating nws mus rau thickness ntawm 0.025 millimeters. Electroplated coaxial cables nrog cov neeg xyuas sab nrauv muaj qhov yooj yim, lub teeb yuag, tiv thaiv zoo, tsis tshua muaj attenuation, tsis tshua muaj suab nrov, thiab siab corona voltage. Lawv yog cov qauv zoo tshaj plaws sab nrauv rau cov me me RF cables.
