Tsunayuki Yamamoto

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In this paper, a composite right/left-handed (CRLH) slab-type material excited by plane wave is proposed. It is composed of multilayer metallic patterns between dielectric substrates. The equivalent circuit is shown to design a balanced CRLH material. The balanced CRLH characteristics are measured. Next the CRLH material composed of four kinds of cells with(More)
Negative refractive index characteristics of a uniaxial anisotropic slab with a negative component of the permeability tensor are first confirmed. A two-dimensional array of metallic spirals is fabricated on a dielectric substrate and the wave propagation guided by the structure is measured by near-field measurements at 4.5 GHz band. The ω-β relation is(More)
In this paper, an equivalent circuit of a fishnet-type material composed of multilayer metallic patterns is proposed. The fishnet-type material can be considered as a rectangular waveguide with stubs, and the operation principles can be simply and clearly explained by a proposed equivalent circuit. Proposed equivalent circuit can be useful for analyzing and(More)
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