Modeling of Nonuniform Magnetisation of a Ferrite Loaded WaveguideH. V. Dixit , A. R. Jadhav , Y. M. Jain , A. N. Cheeran , V. Gupta , P. K. Sharma ,
 Veermata Jijabai Technological Institute, Mumbai, Maharashtra, India
 Vidyavardhini's College of Engineering and Technology, Vasai, Maharashtra, India
 Institute for Plasma Research, Gandhinagar, Gujarat, India
The modelling of a ferrite material is conventionally carried out using the Polder permeability tensor which assumes that the ferrite is saturated by a uniform magnetic field. This assumption is often inaccurate due to the constraints imposed by boundary conditions which renders the magnetic field non-uniform. This work proposes to overcome this by determining the magnetic field through a magnetostatic solver and then computing the RF permeability of ferrite using its solution. A case study of a ferrite loaded nonreciprocal phase shifter is taken.