IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, vol.71, no.2, pp.2011-2015, 2023 (SCI-Expanded)
Article / Article
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
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Geometrical theory of diffraction (GTD), physical theory of diffraction (PTD), series (mathematics), uniform theory of diffraction (UTD), GEOMETRICAL-THEORY, SCATTERING
Ondokuz Mayıs University Affiliated:
Remainders of various forms of series expressions of a function F(x), which arises frequently in the high-frequency solutions of electromagnetic wave radiation and scattering problems, are transformed into some integrals. Then, the saddle-point method is applied to those integrals to obtain accurate approximations for terminating the series expressions. The accuracy improvements are illustrated by numerical examples and graphs.