Effects of nonuniform cables on the propagation and coupling processes at high frequencies

This paper deals with nonuniform transmission lines which are excited at high frequencies. Networks of those lines are formed and they are described by the BLT–equation. The essential ingredients in this equation are the scattering and the propagation supermatrices. For our investigations we derive these quantities from the product integral solution of generalized telegrapher’s equations. The main emphasis is laid on the determination of the effects of nonuniform conduction of cables on signals propagating along them and on radiation losses from nonuniform transmission lines at high frequencies in dependence on their height above ground and on bend angles.