A review on novel magnetic properties of metamaterials CRLH devices : Part 1

Abstract

This paper introduces different varieties of novel composite right / left handed metamaterials devices with novel magnetic operation properties. The reported devices are discussed in terms of their theoretical. The reported devices have the advantages of their small size, multi frequency band in addition to broadband operation (≈60 %) compared to their conventional design. Moreover, these devices are designed to illustrate novel magnetic properties such as their tuning and non reciprocity operation capabilities. Theoretical explanations supported by simulation results of presented devices confirmed the operation of a tunable and nonreciprocal coupler and tunable transformer. The novelty and advantage of the reported devices are their combined properties of compactness and nonreciprocity. Furthermore the devices require very low external DC magnetic bias due to its much lower demagnetization compared to the microstrip configuration. Accordingly, the devices can be applied in many RF front end novel applications such as circulators and isolators.

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

“…Such technology started in 1967. when Victor Veselago predicted the existence of materials with negative permeability and permittivity. Veselago called it LH-MTM because it generates a left-handed propagation, different from available materials that create a right-handed triad [7,8]. However, these materials were considered theoretical and could not be constructed due to the natural effects generated when current passes through the medium structure [9].…”