THEORETICAL AND EXPERIMENTAL INVESTIGATION TO DETERMINE THE MICROWAVE CHARACTERISTICS AND APPLICATIONS OF HEXAGONAL MAGNETIC OXIDES TO MICROWAVE CIRCUITRY
Abstract : Identifiers: Resonance isolators. An investigation was made of the properties of hexagonal magnetic oxides and of their application to specific microwave devices. A procedure was developed for the preparation of good, high density, ceramic samples of 9 different Me2Z and Me2Y compounds and a series of (Ni(1-x)Co(x))2W materials. Studies of the degree of orientation of the materials were carried out using x-ray diffraction techniques. The samples prepared were subjected to both static and micr wave evaluation. The measured linewidth was found to be independent of cobalt content over this range of substitutions. A strong dependence of linewidth on degree of orientation was noted. Appropriate members of the nickel-cobalt W series were evaluated in K- and V-band resonance isolators.