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This paper describes a newly developed dipole moment (DM) approach, for modeling periodic structures. It is both memory- and time-efficient, and is applicable to arbitrarily shaped elements, whose material properties can also be arbitrary.
In this paper we discuss some of the challenging issues arising in the process of designing broadband matching systems for small antennas that are inherently high-Q devices. One of the novel approaches to realizing broadband performance from a small antenna is to consider the possibility of loading it with metamaterials that have negative epsilon characteristics. It has been conjectured that it may...
Research activities in the area of Metamaterials (MTMs)-especially Negative Refractive Index (NRI) media-have been truly intense during the last ten years, and these activities are likely to continue on unabated during the next decade. In this presentation we will critically examine the potential use of metamaterials for a number of practical applications for which they appear to be promising.
The purpose of this review paper is to critically examine some the physics-based fundamental limitations. Using metamaterials and/or other exotic physical phenomena for performance. This, in turn, prompts us to critically examine the effective medium theories, and rigorously model the physical structures that show promise rather than their effective medium equivalents to see if indeed their actual...
In this review paper we take a critical look at the problem of performance enhancement of small antennas using metamaterials. We first review the definitions of metamaterials that have been used in the literature, and then introduce our own classification of metamaterials in the microwave regime - that are artificial dielectrics - by dividing them into two broad sub-categories. Representative examples...
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