Iisekethe ze-Rigid-flex ziye zanda kakhulu kwiminyaka yakutshanje ngenxa yokuba idibanisa ukuguquguquka kweesekethe eziguquguqukayo kunye nokuqina.& ukuthembeka kwe-FR4 PCB. Enye yeengqwalasela eziphambili zoyilo xa udala i-rigid-flex circuit yixabiso le-impedance. Kwimiqondiso yefrikhwensi ephezulu ngokubanzi kunye neesekethe zeRF, i-50ohm lelona xabiso lixhaphakileyo elisetyenziswe ngabayili kunye nabacetyisiweyo ngumenzi, kutheni ke ukhethe i-50ohm? Ngaba i-30ohm okanye i-80ohm iyafumaneka? Namhlanje, siza kuphonononga izizathu zokuba kutheni i-50ohm impedance lolona khetho lufanelekileyo loyilo lweesekethe eziqinileyo.