Abstract
This paper aims to study and analyze the electromagnetic propagation in media with negative transverse permeability and how this leads into some physical phenomena such as the appearance of backward waves and the propagation below cutoff. This study is done through the use of metamaterials of split ring resonators. It is shown that the waveguide dimensions needed to transmit a certain frequency band, can be miniaturized to half its dimension. The analytical determination of the propagation inside a waveguide in the presence of two slabs with dielectric permittivity and negative transverse permeability is derived. Finally it is shown by simulation, how to obtain a backward wave with lower loss than reported earlier in the literature.
Highlights
Rectangular waveguides are required for most of applications in microwaves
This paper aims to study and analyze the electromagnetic propagation in media with negative transverse permeability and how this leads into some physical phenomena such as the appearance of backward waves and the propagation below cutoff
A waveguide filled with negative permeability metamaterial SRR of resonant Figure 7
Summary
Rectangular waveguides are required for most of applications in microwaves. It can be used as a basic guided structure in radar application. The important application of the waveguide is to radiate element in multi-frequency interlaced antenna arrays. There are several methods to reduce the size of waveguide. One of the most important methods is metamaterial that it is used to reduce the size of the waveguide and to obtain the desired resonant frequency bands. Metamaterials exhibit both negative permittivity and permeability [1] [2] [3] [4] [5]
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