Abstract: By resolving a free oriented magnetic of HMD and VMD to EV and EP wave is given. By dipole to HMD and VMD, a method for resolving the wave studying the reflection and transmission of EV and EP wave on each layer,a kind of recurrence formula of electromagnetic wave in each layer is proved,and then an analytic expression for electromagnetic field of MD with Bessel function integral, which satisfies boundary condition of each layer, is obtained.

Key words: stratum medium, magnetic dipole, EV and EP wave, electromagnetic field