Determination of max/min values of nonuniform transmission line characteristic impedance on basis of the given line spectrum

Summary form only given. The definition of the minimal and maximal values of wave resistance of a short-circuited irregular line of transfer on the set spectrum of a line is considered in the paper that will allow to apply various methods of optimization, imposing restrictions on a physical reliability of an irregular line of transfer. Settlement values of wave resistance difference are compared to the values received on deduced approximative formula.