4 Layer FR4 OSP Impedance Mana PCB
Ahuatanga Impedance Mana PCB
Ko te impedance āhuatanga o te conductor i runga i te PCB ko te taupū nui o te hoahoa ara iahiko, rawa i roto i te hoahoa PCB o iahiko auau teitei, me whakaaro tatou mehemea he rite te impedance āhuatanga o te conductor ki te impedance āhuatanga e hiahiatia ana e te taputapu tohu ranei.
PCB Impedance Matching
I roto i te PCB, ki te mea he tuku tohu, e tika ana kia puta mai i te mutunga o te tukunga o te hiko, i te mea he iti rawa te ngaronga o te kaha, ka taea te tuku pai ki te mutunga o te whiwhinga, a ka tino uru te mutunga o te whiwhinga. kahore he whakaata.Hei whakatutuki i tenei tukunga, me rite te impedance i roto i te raina ki te impedance i roto i te pito i puta mai kia kiia ai ko te impedance orite.Ko te whakataurite impedance tetahi o nga huānga hoahoa i te wa e hoahoa ana i te ara iahiko PCB tere.Ko te uara impedance e tino pa ana ki te aratau ararere.
Hei tauira, ahakoa ka hikoi koe i runga i te paparanga mata (Microstrip), i te paparanga o roto ranei (Stripline/Double Stripline), te tawhiti mai i te paparanga hiko tohutoro, te paparanga ranei, te whanui ara, te papanga PCB, me etahi atu, ka pa katoa ki te uara arataki ahua o te ara.Ko te tikanga, ko te uara impedance ka taea anake te whakatau i muri i te waea, a he rereke ano te ahua o te impedance i hangaia e nga kaihanga PCB rereke.Ko te tikanga, karekau e taea e te rorohiko whaihanga te whai whakaaro ki etahi waea aukati aukati na runga i te herenga o te tauira raina, i te algorithm pangarau ranei i whakamahia.
I tenei wa, ko etahi Temninators anake ka taea te rahui i runga i te hoahoa hoahoa, penei i te aukati rangatū, hei whakaiti i te awenga korekore o te aukati waea.Ko te tino otinga taketake mo te raru ko te ngana ki te karo i te puta mai o te aukati impedance i te wa e waea ana.