Paunenge uchigadzira yakakwira-kumhanya PCB maseketi, impedance yekufananidza ndeimwe yezvinhu zvekugadzira.Iyo impedance kukosha ine hukama hwakakwana neiyo wiring nzira, sekufamba pamusoro pedenga (microstrip) kana yemukati layer (stripline/double stripline), chinhambwe kubva pareferensi layer (simba rekuisa kana pasi layer), wiring wide, PCB zvinhu. , etc. Zvese zvichakanganisa hunhu impedance kukosha kweiyo trace.

Kureva kuti, iyo impedance kukosha inogona kutariswa mushure mekuita wiring.Kazhinji, simulation software haigone kufunga nezve mamwe ma wiring mamiriro ane discontinuous impedance nekuda kwekuganhurwa kweiyo redunhu modhi kana masvomhu algorithm inoshandiswa.Panguva ino, mamwe chete materminators (kugumisa), akadai seanotevera kuramba, anogona kuchengetwa pane schematic dhizaini.Deredza mhedzisiro yekusaenderera mberi mukuteedzera impedance.Mhinduro chaiyo yedambudziko ndeyekuedza kudzivirira impedance discontinuities kana wiring.