关键词: 低频电磁波, 相移角, 反射系数

Abstract: Basing on the difference of directions between the direction of phase shift constant and direction of amplitude attenuation when the electromagnetic wave propagates in conductive medium, and using the boundary conditions of electromagnetic wave at the interface of conductive media, we set up the formulae of directional relations between the direction of phase shift constant and direction of amplitude attenuation, and realize that two directions of phase shift constant and amplitude attenuation are expressed with one incident angle. For low frequent inhomogeneous reflected electromagnetic wave(LIREW), we give the reflection coefficient on the interface of conductive media, derive the reflected phase angles for the polarizing direction of electric field parallel and perpendicular to the incident plane by the reflection coefficient, and establish relation expression of reflected phase shift with the incident angle. From the results we can find that there are the phase shifts in all incident angles that are form 0° to 90°, which are great difference with phase shifts of total reflected light.

Key words: inhomogeneous electromagnetic wave, reflected coefficient , reflected phase angle