01361nam a2200217Ia 4500 CTU_163753 210402s9999 xx 000 0 und d 153 621.3824 U23 Ufimtsev, Pyotr Yakovlevich Fundamentals of the physical theory of diffraction Pyotr Ya. Ufimtsev Hoboken, N.J. Wiley-Interscience 2007 This book is the first complete and comprehensive description of the modern Physical Theory of Diffraction (PTD) based on the concept of elementary edge waves (EEWs). The theory is demonstrated with the example of the diffraction of acoustic and electromagnetic waves at perfectly reflecting objects. The derived analytic expressions clearly explain the physical structure of the scattered field and describe in detail all of the reflected and diffracted rays and beams, as well as the fields in the vicinity of caustics and foci. Shadow radiation, a new fundamental component of the field, is introduced and proven to contain half of the total scattered power Electromagnetic waves,Diffractive scattering,Sóng điện từ,Nhiễm xạ phân tán Diffraction,hiện tượng nhiễm xạ Nguyên Trung tâm Học liệu Trường Đại học Cần Thơ