Kim, SY 2024-01-21T18:01:17Z 2024-01-21T18:01:17Z 2021-09-01 1997-11 0916-8524 https://pubs.kist.re.kr/handle/201004/143537 The H-polarized diffraction by a wedge consisting of perfect conductor and lossless dielectric is investigated by employing the dual integral equations. Its physical optics diffraction coefficients are expressed in a finite series of cotangent functions weighted by the Fresnel reflection coefficients. A correction rule is extracted from the difference between the diffraction coefficient of the physical optics field and those of the exact solution to a perfectly conducting wedge. The angular period of the cotangent functions is changed to satisfy the edge condition at the tip of the wedge, and the poles of the cotangent functions are relocated to cancel out the incident field in the artificially complementary region. Numerical results assure that the presented correction is highly effective for reducing the error posed in the physical optics solution. English IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG H-polarized diffraction by a wedge consisting of perfect conductor and lossless dielectric Article 1 IEICE TRANSACTIONS ON ELECTRONICS, v.E80C, no.11, pp.1407 - 1413 IEICE TRANSACTIONS ON ELECTRONICS E80C 11 1407 1413 N scie scopus A1997YJ12900013 2-s2.0-0031271198 Engineering, Electrical & Electronic Engineering Article IMPEDANCE WEDGE SCATTERING EDGE electromagnetics diffraction wedge dual integral equations physical optics approximation edge condition