Premium
An extension of the physical theory of diffraction concept for aperture radiation problems
Author(s) -
Altintaş Ayhan,
Büyükdura O. Merih,
Pathak Prabhakar H.
Publication year - 1994
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/94rs01667
Subject(s) - diffraction , aperture (computer memory) , plane (geometry) , optics , conformal map , huygens–fresnel principle , physics , point (geometry) , physical optics , angular aperture , radiation , extension (predicate logic) , fresnel diffraction , surface (topology) , mathematics , mathematical analysis , geometry , computer science , acoustics , programming language , focal length , lens (geology)
A correction to the Kirchhoff‐Huygens approximation in the format of a diffraction coefficient is derived for an aperture terminated by a half plane. As in the physical theory of diffraction (PTD), this is achieved by considering the end point contribution to the aperture integral. It is seen that when the aperture is taken as conformal with the surface of the half plane, the conventional PTD result is obtained.