Yintoni ingxumbulo elibhangelweyo nge-50 ohm ngaphandle kokubhalwa kwenye icabhu le-coaxial?

i-cable le-coaxial lenge-50 ohm njenge-RG58, RG174, RG 316, 5D-FB ibhangelweyo ngokupheleleyo nge-SMA okanye i-BNC interfaces. ‌

Kwisinqumo sose-RF, ukubhalwa kwezinto ezi-50 ohm nguquphelo olunene lapho impendulo yakwazo kanye nezixhasi zombini zizama ukuqonda nokuba kakhulu. Lwendalo lokusebenza lokuhlola ukuthi umthetho wesiganako wesinye esebenza ngokukhawuleza kanye nokusetyenziswa kwezinye izinyathelo.

Ngokushesha, i-resistor lenyango lenge-50 Ω / i-impedance adapter enge-50 Ω lengena i-BNC interface engenani, oyenza ukuba zikhululekile kanye nokuba zingene noma zonke izindlela ezithile ezifanele. Ngokuhlu, izinhlobo ezintsha neminyaka yokuthula, amandla amaphro, amandla amaphro we-Roche, kanye nokuthi zonke izindaba ezisebenzisa i-BNC interfaces ukuvumela uhlobo lwesiganako nokusetyenziswa kwezinyathelo.

Ukubuyisela okuphakamisi kwiimpahla yamatshintsho amaninzi ngokushesha ngokupheleleyo kusenzo lokusebenzisa ukuthola uphawu lokuqondiswa phakathi komphendiso weelektroniki. Kwesifazwe sokuhlola umoya, leso sicala esikhohlwa sikhulu sika-50 ohm iimpahla yokubuyisela okuphakamisi kuhlanganiswa ngokukhangana, ngokulandelayo kwemibuzo ezingezantsi ezidingayo ukuhlolwa kweesithunzi zomoya ezindala ezindala. Ngokusebenzisa isiphumo se-BNC, izithunzi ziqhathelwa ngokungcono kusuka kwindawo yokuhlola lokuthiwe ngenqanawe yenqanawe nokuhlambisana ngeesithunzi, ngoko kunyathelwa umthentho wemfundo.

Ngokugcina, ubuyiselo okuphakamisi kwi-50 ohm kuhlanganiswa ngokumangaliso ne-BNC interfaces, okuningi lwavela kwiRF circuits ngokuba kukhethwe ngokwesisekelo esingabonakaliyo kwegalelo lwezithunzi.