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New Negative Refractive Index Material Composed of Dielectric Prisms with Metal Patterns
Hiroshi KUBO Kazuhiro NISHIBAYASHI Tsunayuki YAMAMOTO Atsushi SANADA
IEICE TRANSACTIONS on Electronics
Publication Date: 2013/10/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Emerging Technologies and Applications for Microwave and Millimeter-Wave Systems)
negative refractive index material, left-handed material, equivalent circuit, super lens,
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A two-dimensional negative refractive index material is proposed. The material has a bulky structure composed of dielectric prism cells with metal patterns. The material is expressed by an equivalent circuit. The propagation regions of two left-handed modes calculated from the equivalent circuit exist near the propagation regions obtained by electromagnetic simulation. It is confirmed by simulation that the incident plane wave goes into the material with low reflection by using the second left-handed mode and attaching metal conversion strips around the material. A negative refractive index slab lens with 15×9 cells is made to measure the field distribution of wave out of the lens. It is shown that the resolution of the slab lens exceeds the diffraction-limit.