ELECTRODYNAMIC THEORY OF FINITE MAGNETOSTATIC WAVE-GUIDES

In this paper the electrodynamic theory of arbitrary magnetostatic wav eguide structure (WS) based on a sequence approach method is establish ed. To calculate a wave number, a magnetic scalar potential distributi on, an electric field and a power frequency dependence of arbitrary ty pe WS's eigenmodes a new version of finite difference method based on integro-interpolated approach is developed. To show the availability o f this technique four types of the MSW WS are studied: the first is a narrow waveguide being analyzed taking into account the two-dimensiona l inhomogeneity of its internal demagnetized field which follows from the rigorous solution of respective nonlinear boundary task to calcula te the dc magnetic field distribution in the ferrite slab of finite si zes. The second and third WS are the two ferrite slabs of a finite wid th connected guides and the last is the finite width double-layer of d ifferent saturation magnetization nonreciprocal WS. The results of the computing method validity verification are discussed in the paper too . It concludes the developed method to be powerful and to be used to a nalyze electrodynamic properties of MSW WS's of different types.