KIM, SY 2024-01-21T23:04:33Z 2024-01-21T23:04:33Z 2022-01-11 1992-11 0018-926X https://pubs.kist.re.kr/handle/201004/146355 The diffraction problem is treated for the incidence of an E-Polarized plane wave on both interfaces of an obtuse-angled dielectric wedge. Based on the dual integral equation, the total field is obtained by sum of the physical optics solution and the edge-diffracted correction term. Calculated diffraction coefficients and field patterns are plotted in figures for wedge angle 120-degrees, incident angles 60-degrees and 70-degrees, and relative dielectric constants 2 and 10. It is shown that the Neumann expansion to the nonuniform currents provides a more accurate correction to the physical optics currents than the multipole expansion as the angle of dielectric wedge increases. English IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC DIFFRACTION COEFFICIENTS AND FIELD PATTERNS OF OBTUSE ANGLE DIELECTRIC WEDGE ILLUMINATED BY E-POLARIZED PLANE-WAVE Article 10.1109/8.202721 1 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.40, no.11, pp.1427 - 1431 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION 40 11 1427 1431 N scie scopus A1992KQ61300018 2-s2.0-0026945553 Engineering, Electrical & Electronic Telecommunications Engineering Telecommunications Note