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The problem of axially-symmetric electromagnetic wave diffraction from the perfectly con ducting biconical scatterer formed by the finite cone placed in the semi-infinite conical region is solved rigorously using the mode-matching and analytical regularization techniques. The problem is reduced to the infinite systems of linear algebraic equations (ISLAE) of the second kind. The obtained equations admit the reduction procedure and can be solved with a given accuracy for any geometrical parameters and frequency. The numerical examples of the solu tion are presented. The analysis of the source location influences on the far-field pattern for different geometrical parameters of the bicone is carried out.

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