High Frequency Magnetic Structure and Magnetic Bounds Relation

Bounds relation between the dynamic magnetic parameters (e.g.the real and imaginary part of the microwave permeability, or the cutoff frequency) and the intrinsic magnetic parameters is a key issue for the high frequency magnetic structures. In the past decades, the bounds relation is developed with the fast development of high frequency magnetic structures, as the theoretical support of material design and the guidance of future development. This paper reviews the development and recent progress of both high frequency magnetic structure and bounds relation, focusing on their relationship and study methods. At last, suggestions about future study and existing problems are given.