I-VSWR，Ukulahleka kokubuya,Ukulahlekelwa kokufakwa,Ukuhlukaniswa,ukuxhuma,Ukuqondisa,Ukuzwela kwemvamisa kwesixhumi, ifomula yokubala

Ku-coupler eqondisa indlela, lawa mapharamitha achaza ukuthi amasampula amandla ageleza kahle kangakanani kolunye uhlangothi ngenkathi enqaba olunye. Nazi amafomula okubala ajwayelekile: