Resonance cone formation, reflection, refraction, and focusing in a planar anisotropic metamaterial

Resonance cone formation, reflection, refraction, and focusing in a planar anisotropic metamaterial

The material studied is a planar wire-grid network loaded with orthogonal capacitors and inductors. Over a ground plane and excited by a localized single-frequency source, this metamaterial exhibits conical high-field regions called "resonance cones." The cones exhibit specular reflection...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2002, Vol.1, p.146-149
Hauptverfasser: Balmain, K.G., Luttgen, A.A.E., Kremer, P.C.
Format: Artikel
Sprache:eng
Schlagworte:
Anisotropic magnetoresistance
Antennas
Boundaries
Capacitors
Focusing
Ground plane
Inductors
Magnetic resonance
Metamaterials
Partial differential equations
Permittivity
Plasma simulation
Plasma waves
Reflection
Refraction
Specular reflection
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Beschreibung
Zusammenfassung:The material studied is a planar wire-grid network loaded with orthogonal capacitors and inductors. Over a ground plane and excited by a localized single-frequency source, this metamaterial exhibits conical high-field regions called "resonance cones." The cones exhibit specular reflection from boundaries and, with two such materials interfaced, the cones exhibit negative refraction as well as subwavelength focusing into a spot smaller than 1/20th of a free-space wavelength. Moment-method simulations and experiments show good agreement.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2002.807565