Impedance matching yog ib qho tseem ceeb technology los xyuas kom meej cov teeb liab kis tau tus mob zoo; tus yam ntxwv impedance ntawm ib tug connector yuav tsum ua raws li cov kev cob cog rua coaxial cable thiab tag nrho cov system los tiv thaiv lub teeb liab kev xav thiab lub zog poob, yog li tswj cov teeb liab kev ncaj ncees. Feem ntau impedances muaj xws li 50Ω thiab 75Ω. Piv txwv li, SMA connector muaj ib tug yam ntxwv impedance ntawm 50Ω; siv nws hauv 75Ω system yuav ua rau kev ua haujlwm tsis zoo.
Nyob rau hauv precision multi-channel systems, manufacturing tolerances yuav ua rau inconsistencies nyob rau hauv theem thiab impedance nyob rau hauv cov channel. Txhawm rau daws qhov no, kev lag luam ntiav cov txheej txheem sib dhos ua ke raws li kev kwv yees kev ua haujlwm hluav taws xob.
Kev ntsuam xyuas cov teeb liab nruj nruj yog yuav tsum tau ua kom ntseeg tau tias cov khoom sib txuas ua haujlwm hauv siab - zaus, siab - daim ntawv thov ceev. Cov kev ntsuam xyuas tseem ceeb suav nrog cov yam ntxwv impedance, tsis muaj qhov nkag, rov qab poob, deb-kawg crosstalk (FEXT), ze -kawg crosstalk (Tom ntej), thiab qhov muag daim duab tsom xam. Cov kev ntsuam xyuas no ua raws li ntau yam thoob ntiaj teb thiab kev lag luam cov qauv, xws li USCAR-17 rau kev lag luam tsheb thiab IEC 60512 rau kev siv dav dav.
Txhawm rau ua kom nrawm nrog kev hloov pauv ntawm kev sib txuas lus thev naus laus zis mus rau ntau zaus thiab ntau dua, cov khoom sib txuas coaxial tau nce qib hauv cov ntsiab lus ntawm miniaturization, muaj peev xwm ntau dua, qis dua, thiab qis dua Voltage Standing Wave Ratio (VSWR). Kev khiav hauj lwm zaus tau nthuav tawm los ntawm cov tsoos GHz ntau rau hauv millimeter-wave band; Piv txwv li, SMPM series txhawb cov zaus mus txog 65 GHz thiab SMPS series nce mus txog 100 GHz, thaum millimeter-wave connectors nrog rau siab txwv ntawm 50-110 GHz kuj tseem tab tom txhim kho. Nyob rau tib lub sijhawm, qhov sib txuas qhov loj me yog qhov tsawg dua- pom nyob rau hauv series xws li SMP thiab MMCX-kom pab tau siab dua board- theem mounting ntom.
Ib qho kev sib txuas ntawm hluav taws xob kev ua tau zoo, kev ua haujlwm ruaj khov, thiab kev hloov pauv ib puag ncig nyob ntawm nws cov khoom siv thiab plating. Feem ntau plating hom thiab lawv cov yam ntxwv muaj xws li: nyiaj plating, uas muaj superior hluav taws xob thiab thermal conductivity, tsis tshua muaj kev sib cuag tsis kam, thiab zoo heev intermodulation kev ua tau zoo- ua rau nws zoo tagnrho rau sab hauv conductors nyob rau hauv qis -intermodulation thiab siab - fais fab kev siv, txawm hais tias nws yog feem ntau sulfidation; kub plating, yam ntxwv ntawm tshuaj stability, corrosion kuj, thiab tsis tshua muaj kev sib cuag tsis kam-nrog hnav tsis kam nyob ntawm thickness- feem ntau yog siv rau sab hauv conductors thiab PCB connectors yuav tsum muaj kev ntseeg siab; npib tsib xee plating, feem ntau siv los ua ib qho hauv qab lossis rau cov vaj tsev kom muab cov neeg kho tshuab zoo thiab kev tiv thaiv corrosion; thiab ternary alloy plating, uas ua tau zoo ib yam li nyiaj, muab cov khoom zoo heev uas tsis yog- cov khoom sib nqus thiab corrosion kuj uas pab txhim kho passive intermodulation kev ua tau zoo, feem ntau yog siv rau sab nraud conductors.