Renewed diffraction formula using reciprocity

Abstract

We present a new diffraction formula derived from the reciprocal theorem. This formula utilizes secondary waves generated from the unobstructed region of a plane near the diffraction object, with the plane's normal vector aligned along the source-receiver axis. Importantly, our approach successfully mitigates the mathematical inconsistencies inherent in Kirchhoff's diffraction formula and eliminates the inclination factor, resulting in a highly effective solution. This method is beneficial for scenarios involving irregularly shaped objects.