Nonreciprocal metamaterials based on magnetic photonic crystals

Composite metamaterials based on magnetic photonic crystals can display unique. electromagnetic properties such as gigantic magnetoelectric effect, one-way transparency (electromagnetic unidirectionality), and the ability to slow down and trap incoming microwave radiation. Such metamaterials can be made from off-the-shelf ferrites and other readily available dielectric components. The key to the desired properties is the proper spatial arrangement of the constitutive components, which can be found by solving electrodynamic equations in the gyrotropic composite medium. Utilization of these photonic metamaterials in portable receiving and transmitting antennas can drastically enhance their directionality and efficiency while reducing their size.