Compact size highly directive antennas based on the SRR metamaterial medium
Date
2005Source Title
New Journal of Physics
Print ISSN
1367-2630
Publisher
Institute of Physics Publishing
Volume
7
Pages
1 - 10
Language
English
Type
ArticleItem Usage Stats
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Abstract
In this work, we studied the far-field properties of the microwave radiation from sources embedded inside the split-ring resonator (SRR) metamaterial medium. Our results showed that the emitted power near the resonance frequency of the SRR structure was confined to a narrow angular region in the far field. The measured radiation patterns showed half-power beamwidths around 14°. The highly directive radiation is obtained with a smaller radiation surface area when compared to the previous results obtained by using photonic crystals. The reduction in the surface area is ten-fold in the case of the SRR metamaterial medium when compared to the photonic crystals. Our results provide means to create compact size highly directive antennas.
Keywords
Far-field propertiesMetamaterial medium
Photonic crystals
Split-ring resonator (SRR)
Crystals
Microwaves
Natural frequencies
Photons
Radiation
Resonators
Directive antennas