Konektër coaxial RF yi, ñooy lëf yi gëna am solo ngir joxe siñaal bu am fréquence bu kawe, ñu ngi leen di jëfandikoo bu bari ci jokkoo, aerospace, test ak natt, ak ci yeneen wàll. Seen performance amna njeexital ci njubte siñaal bi, gaawaayu transmisioŋ bi, ak wóorum sistem bi. Artikle bii dafay leeral ci anam wu sistematik pexe xarala yu am solo yi ngir lëkkalekaay coaxial RF ci wàllu tànneefi macceer, jëmmal jëmmal, liggéeyu defar, ak saytu test.
Tanneef jumtukaay ak toppatoo surface
Performance conector coaxial RF mingi aju bu baax ci tànneefu macceer bi. Konduktëru digg bi dañu koy defaree ay mbir yu am doole lool lu ci melni përëm beryllium (BeCu), bronze phosphor (PhBr), wala alloy përëm buñ plakee wurus ngir mëna baña laal dara, ba noppi mëna joxe siñaal bu baax. Conducteur bi ci biti dañu koy faral di defaree asiye inox (lu melni SUS303, SUS316) wala cuivre (lu melni H59, H62) ngir yemale doole mekanik ak mëna liggéey. Dielektrik biy isoler dañu koy faral di defaree polytetrafluoroethylene (PTFE), polyimide (PI), wala seramik ngir mëna am dielektrik bu dëgër te baña ñàkk lu bari.
Baaxal surface bi lu am solo la ngir konektër bi baña yàqu ba noppi mëna déggoo ak moom. Li ñuy gëna faral di def mooy wurus (Au), nikel (Ni), wala xaalis (Ag). Plaking wurus dañu koy jëfandikoo bu bari ci senaario yu wóor ndax limu mëna xeex oxidation ak limu mëna xeex contact; plaqué nickel dafay baña yàqu ba noppi di ko aar ci diggante couche yi.
Design structurel ak parametre yu am solo
Defarum jëmmal bu lëkkalekaay coaxial RF dafa wara topp bu baax theorie champ electromagnetik ngir mëna am impedance bu méngoo (daanaka 50Ω wala 75Ω) ngir wàññi reflexioŋu siñaal bi. Ëmbeef yi gëna am solo ci jëmmal ñooy:
1. Impedance Matching: Sooy saytu bu baax diametre bi ci biir, isolation bi, ak diametre bi ci biti, liiñ biy joxe màndarga impedance bi dafay méngoo ak li sistem bi soxla.
2. Optimisation interface contact: Jëfandikoo ab structure contact bu dëgër (lu melni pin - ak - socket design) dafay gëna yombal stabilite mekanik bi ba noppi wàññi resistance contact bi.
3. Njariñu kaaraange: Defarum yoon bu wéy ci biti (lu melni lëkkalekaay bu am file wala tëjukaayu bayonet) dafay tere jafe-jafe electromagnetik (EMI).
Rax ci dolli, fàww ñu saytu parametre yu am solo yu melni tolluwaayu fréquence, ñàkka dugal, ratio onde taxaw voltage (VSWR), ak guddaay (cycle sëy) dañu leen wara saytu jaaraleko ci simulation ak jàngat.
Processus de fabrication ak usine bu jaar yoon
Defar lëkkalekaay coaxial RF dafay laaj xaralay masin bu jaar yoon, li ci njëkk mooy jéego yii:
1. Machining: CNC tournement wala stamping njub lañuy jëfandikoo ngir masin bi ci biir ak biti conducteurs, ngir mëna tolerance dimensionel ci ± 0.01mm.
2. Moulage isolant: Matériel dielectric yu melni PTFE dañu leen di fikse ci moulage injection wala crimping mekanik ngir mëna ànd bu baax ak conducteurs yi.
3. Surface Traitement: Processus electroplating dafay laaj ñu saytu bu baax dëgëraay bi (misaal, couche wurus bu ëpp wala tollu ci 1μm) ak uniformité ngir moytu discontinuité ci transmission signal.
Ngir aplikaasioŋ yu am fréquence bu kawe (lu melni bande onde milimetre), fàww ñu jëfandikoo pexem micromachining (lu melni dagg laser) ngir gëna mëna defar structure electrode bi.
Test ak saytu kalite
Ngir mëna wóor ni liggéeyu lëkkalekaay bi méngoo na ak sàrt yiñ tëral (lu melni IEC 61169 ak MIL-STD-348), fàww ñu def test ak saytu bu mat sëkk, lu ci melni:
1. Test performance kuuraŋ: Natt ñàkka dugal, ñàkka dellu (VSWR), mbañeelu jokkoo, ak tontu fréquence.
2. Test performance mekanik: jàngat dooley dugal ak dindi, dooley tëye, ak baña yëngu/choc.
3. Test mën mëna ànd ak environmaa bi: Boole ci cycling tàngoor wu kawe ak woyof (-55 degre ba +125 degre), test spray xorom, ak test humidité.
Sistemu test otomatik (lu melni analyseur reso vecteur (VNAs)) mën nañu jàpp done yu am solo yi ci anam wu jaar yoon, teg ci tegtal jëmmal jëmmal.
Optimisation performance conecteurs coaxial RF a ngi aju ci synergie ci science matériel, defar bu jaar yoon, ak test yu tar. Ak yokkuteg 5G, jokkoog satelit, ak xaralay joxe done yu gaaw, konektër yi dina ñu jëm ci frequency yu gëna kawe (lu melni terahertz), dayo yu gëna ndaw, ak perte yu gëna néew. Yokkateg jëmmal ak anam yi ñu koy defee mën na gëna yombal seen wóor ak mëna ànd ak jafe-jafe yi.