Kwimeko yanamhlanje yokwanda i-5g kunye nezicelo ze-IOO, uyilo kunye nokusetyenziswa kwesandla serediyo frequency kuye kwathi kubalulekile ngakumbi.Iisekethe zerediyo zerediyo zezi ziphatheza amaza ezi-elektromagnetic ezinokuthelekiswa nobungakanani besekethe.Ezo ziphaluka zifuna ukuphathwa zisebenzisa ithiyori yepharamitha.Ke ngoko, banoluhlu olubanzi lwendlela yokuqhubela phambili.
Kwicandelo loyilo lwe-PCB, izalathiso zentsebenzo ze-RF isekethe ngqo zimisele ngokuthe ngqo umgangatho wemveliso yokugqibela.Ingakumbi kwiimveliso ezincinci, ubume obukhulu bezixhobo ezibangela iingxaki zokuphazamiseka kwe-elektromagnetic ukuba zivele kakhulu.Ukuba ukuphazamiseka kwe-electromagnetic akunakwenzeka ngempumelelo, kunokubangela yonke inkqubo yesekethe ukuba ikwazi ukusebenza ngokufanelekileyo.Ke ngoko, kwi-PCB yoyilo lwe-radio frequency, ukuphucula ukuhambelana kwe-electromagnetic kunye nokuthintela nokucinezela ukuphazamiseka kwe-elektromagnetic kube ngumcimbi ophambili kuyilo.
Ubume becandelo
Kwindlela yokuyila i-PCB yesekethe, ubume bezinto zinefuthe ngqo kungenelelo oluthe ngqo kungenelelo oluthe ngqo kungenelelo kunye nokulwa amandla esekethe, enxulumene nokusebenza kwesekethe, enxulumene nokusebenza kwesekethe eyenziweyo.Xa uyila i-PCB yesekethe ye-RF, ukongeza ekuqwalaseleni izinto zePCB eziqhelekileyo, kuthathelwe ingqalelo eyodwa kwindlela yokunciphisa ukuphazamiseka, indlela yokuphelisa ukuphazamiseka kwezinye iziphaluka, kunye nendlela yokuphucula i-antiUbuchule bokuphazamiseka kwesekethe.
Izinto kufuneka zibekwe ngokwemigaqo yokucwangciswa kwicala elinye, kwaye iziphene ze-welding zinokuncitshiswa ngokukhetha indlela ye-PCB ingena kuyo inkqubo ye-tin yokunyibilika.Ubuncinci i-0.5mm Space phakathi kwezinto ziyafuneka ukuba zifezekise iimfuno zokunyibilika kwe-tin.Ukuba indawo yeBhodi yePCB ivumela, isithuba esiphakathi kwamacandelo kufuneka sandiswe kangangoko kunokwenzeka.Uyilo olunamacala amabini, elinye icala lisetyenziselwa izinto ze-SMD kunye ne-SMC, ngelixa elinye icala lihlala izinto ezilungisiweyo.
wiring
Ngexesha lenkqubo ye-Wiring, yonke imigca kufuneka igcinwe kude nomphetho we-PCB njengoko kunokwenzeka (malunga ne-2mm) ukuthintela umngcipheko wolwaphulo-mthetho ngexesha lemveliso.Ububanzi bomgca wamandla kufuneka bunyuswe ngokufanelekileyo ukunciphisa ukunganyangwa, kunye nokubekwa komgca wamandla kunye necingo lomhlaba kufuneka luhambelane nendlela yokuhanjiswa kwedatha ukuphucula amandla okuphazamiseka kwedatha.Imigca yomqondiso kufuneka ifutshane kangangoko kunokwenzeka, ukunciphisa inani le-VIAs, kunye nokunciphisa uphazamiso lwe-electromagnetic.Imigca yomqondiso engahambelaniyo kufuneka igcinwe kude ne-wiring nganye kunye ne-wiring efanayo kufuneka kuthintelwe kangangoko kunokwenzeka.Apho kukho iikona ezifunekayo, i-135 ° engles kufuneka isetyenziselwe ukunqanda ii-angles ezifanelekileyo.
Imikhondo iqhagamshelwe ngokuthe ngqo kwiipads akufuneki ukuba ibenzi kakhulu, kwaye umkhondo kufuneka ugcinwe kude nezinto ezingaziwayo ukuthintela imijikelezo emifutshane ukuthintela.I-VIAS akufuneki itsalwe kumacandelo kwaye kufuneka ibe kude kangangoko kunokwenzeka ukuthintela ukuthengiswa kobuxoki, ukuqhubeka kwesekethe okanye ukufutshane ngexesha lokuvelisa.
Amandla kunye ne-wiring yomhlaba
Kwindlela yokuyila i-PCB yesekethe, ukuhambisa imigca yamandla kunye nemigca yomhlaba kubalulekile.Uyilo olululo lokuyila yeyona nto iphambili kwi-Electromagnetic.Imithombo yokuphazamiseka emininzi kwi-PCB iveliswa ngokubonelela ngamandla kunye neengcingo zomhlaba, phakathi kwengxokolo yengxolo ebangelwa ziingcingo zengxolo zezona zibaluleke kakhulu.
Unobangela ophambili wophando locingo lomhlaba kukuphatha i-wire yocingo.Xa iqukuqela i-cire yocingo, i-voltage iya kuveliswa kwi-wire yocingo, yenze i-lop yomhlaba ye-LOP, ebangela ukuphazamiseka kwe-loop.Xa isekethe elininzi yabelana ngecandelo le-wire yomhlaba, i-coupelling eqhelekileyo yenziwa kwaye ingxolo yocingo ye-wire yenziwa.Ke ngoko, ukusetyenziswa kweengcingo zemihlaba eqhelekileyo kufuneka kuthintelwe kuyilo lokunciphisa uphazamiseko lwe-wire.