Kim Se Yun 2024-01-13T14:00:26Z 2024-01-13T14:00:26Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/107519 English wedge electromagnetic diffraction physical optics approximation 전자파 회절 문리광학근사 쐐기 An extension of PTD by including the virtual ray-tracing terms in the complementary region of a composite wedge Conference 1 Progress in Electromagnetics Research Symposium Progress in Electromagnetics Research Symposium JA