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By considering the reflection responses of metaunits at different frequencies, we propose an effective route to control the bandwidth of the low-scattering metasurfaces. This metasurface is composed of three kinds of units with different geometries, leading to various reflection phases as well as slight losses under the incidence of terahertz plane waves, thus inducing the destructive interference...
We studied the two kinds of coupled mode of spoof surface plasmon polaritons (SPP), which are capacitive-coupled parallel mode and capacitive-coupled series mode respectively. Capacitive-coupled parallel SPP is composed of two oppositely oriented single-side corrugated strips coupled to two double-side corrugated strips, behaving as a wideband-pass filter. The slot between single-side corrugated strip...
We propose a meander-line resonator, which could provide negative permittivity as a promoted structure from wire lattice. Such a resonator works at relatively low frequencies, and hence has a small unit-to-wavelength ratio. Negative index materials (NIM) is realized by particles composed of meanders lines and split-ring resonators (SRRs), which has simultaneously negative permittivity and permeability...
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