Ukufakwa kobhedu, oko kukuthi, indawo engasebenziyo kwi-PCB isetyenziswe njengenqanaba lesiseko, kwaye emva koko izaliswe ngobhedu oluqinileyo, ezi ndawo zobhedu zikwabizwa ngokuba nokuzaliswa kobhedu. Ukubaluleka kokugubungela ubhedu kukunciphisa i-impedance yomhlaba kunye nokuphucula amandla okuthintela ukuphazamiseka. Ukunciphisa ukuhla kwamandla ombane, ukuphucula ukusebenza kakuhle kwamandla; Idibaniswe nocingo oluphantsi, indawo ye-loop nayo ingancitshiswa. Kwakhona ngenjongo yokwenza welding PCB kangangoko kunokwenzeka ngaphandle deformation, uninzi abavelisi PCB ziya kufuna kwakhona abayili PCB ukuba bazalise indawo evulekileyo ye-PCB ngobhedu okanye igridi-njengocingo komhlaba, ukuba ubhedu luphathwa ngendlela engafanelekanga, ngeke kulahleka, enoba ubhedu “lulunge ngakumbi kunobubi” okanye “lubi ngaphezu kokulungileyo”?
Sonke siyazi ukuba kwimeko ye-frequency ephezulu, i-capacitance yokusabalalisa i-wiring kwibhodi yesekethe eprintiweyo iya kusebenza, xa ubude bukhulu kune-1/20 ye-wavelength ehambelanayo yomsindo wesandi, kuya kubakho umphumo we-antenna, kwaye ingxolo iya kukhutshelwa ngaphandle nge-wiring, ukuba kukho i-copper ephantsi embi, i-copper coating ibe sisixhobo sokusasaza ingxolo, ngoko ke, kwi-high frequency circuit, Musa ukucinga ukuba indawo ethile ucingo oluphantsi luxhunywe emhlabeni, oluyi "wire wire", kwaye kufuneka lube ngaphantsi kwe-λ / 20 isithuba, imingxuma yokubhoboza kwi-wiring, kunye neplani yomhlaba yebhodi ye-multilayer "isekelwe kakuhle". Ukuba iingubo zobhedu ziphathwa ngokufanelekileyo, ukugubungela ubhedu akugcini nje ukwandisa okwangoku, kodwa kudlala indima emibini yokuphazamiseka kokukhusela.
Ngokuqhelekileyo kukho iindlela ezimbini ezisisiseko zokugquma ubhedu, oko kukuthi, indawo enkulu yokugquma ubhedu kunye nobhedu lwegridi, kwaye isoloko ibuzwa ukuba ingaba indawo enkulu yokwaleka yobhedu okanye igridi yokwambathisa ubhedu ilungile, akulunganga ukwenza ngokubanzi. Kutheni kunjalo? Indawo enkulu yobhedu inendima ephindwe kabini yokunyusa yangoku kunye nokukhusela, kodwa indawo enkulu yobhedu, ukuba ingaphezulu kwe-soldering, ibhodi inokuthambekela phezulu, kunye ne-foam. Ngoko ke, indawo enkulu yokugquma ubhedu, vula iindawo zokubeka ngokubanzi ezininzi, ukunciphisa ifoyile yobhedu igwebu, igridi yobhedu elula ikhusela isiphumo, ukwandisa indima yangoku iyancitshiswa, ukusuka kwindawo yokujonga ubushushu, igridi ineenzuzo. (yehlisa indawo yokufudumeza yobhedu) kwaye idlale indima ethile ekukhuseleni i-electromagnetic shielding.
Kodwa kufuneka kuphawulwe ukuba igridi iqulunqwe kwicala eligudileyo lomgca, siyazi ukuba kwisekethe, ububanzi bomgca webhodi yesekethe esebenza rhoqo yi "ubude bombane" obuhambelanayo (ubukhulu bokwenene bahlulwe ukusebenza rhoqo frequency yedijithali ehambelanayo inokufumaneka, ngokukodwa ukubona iincwadi ezifanelekileyo), xa frequency yokusebenza aliphezulu kakhulu, Mhlawumbi indima yemigca yegridi ayicacanga kakhulu, xa ubude bombane kunye nomdlalo wokusebenza rhoqo, imbi kakhulu, uya kufumanisa ukuba isekethe ayisebenzi kakuhle, yonke indawo ikhupha imiqondiso ephazamisana nomsebenzi wenkqubo. Ngoko kubalingane abasebenzisa igridi, isiphakamiso sam kukuba ukhethe ngokuhambelana noyilo lwebhodi yesiphaluka, kwaye ungabambeli kwinto enye. Ke ngoko, i-high frequency circuit ngokuchasene neemfuno zokuphazamiseka kwegridi yeenjongo ezininzi, i-low frequency circuit kunye nesekethe ephezulu yangoku kunye nezinye ezisetyenziswa ngokuqhelekileyo ubhedu olupheleleyo.
