Interaction of Microwaves with Varying Material Properties

Abstract

Microwaves, and other forms of electromagnetic radiation, are constantly reflected, transmitted. Magnetic substances are excellent microwave absorbers. More microwaves are absorbed if the material is magnetic. Both the experimental setup and the methods of measurement are discussed. Microwave absorption characteristics are defined and linked to the underlying micro magnetic environment that causes them. Micro magnetic structures have been linked to both the localised and global absorption characteristics of microwave power. Nano magnets and micro magnets are highlighted. These micro- and nano-magnet-microwave interactions are used to infer magnetic information at the smallest level.

Keywords: Microwaves, magnetic materials, reflecting and transmitting microwaves, microwave absorption.