FIELD: S H F equipment. SUBSTANCE: invention may find use to match rib unbalanced slit line with balanced rib-dielectric lines. Provision for match of rib unbalanced slit line with balanced rib-dielectric line is achieved in junction which includes semi-infinite balanced rib- dielectric line in which edges of ribs are made in the form of smooth curves diverging to their ends. Dielectric plate of balanced rib-dielectric line is continuation of rib unbalanced slit line. Cut-outs in the form of diverging smooth curves are made in centers of screens. Centers of cut-outs are located on one perpendicular with vertexes of ribs of balanced rib- dielectric line. Edges of ribs of rib-unbalanced slit line are manufactured in the form of falling smooth curves. EFFECT: improved reliability of matching.
