MODIFIED Z-TYPE HEXAGONAL FERRITE MATERIALS WITH ENHANCED RESONANT FREQUENCY

摘要

To provide high resonant-frequency materials with reduced magnetostriction, improved resonant frequency and/or enhanced magnetic permeability at high frequencies.SOLUTION: Disclosed herein are embodiments of modified z-type hexagonal ferrite materials having improved properties that are advantageous for radiofrequency applications, in particular, high frequency ranges for antennas and other devices. Atomic substitution of strontium, aluminum, potassium and trivalent ions can be used to replace certain atoms in the ferrite crystal structure to improve the loss factor at high frequencies.SELECTED DRAWING: Figure 2A