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Metallic structures consisting of a central λ0/2 slot surrounded by straight parallel wedge corrugations present high transmission enhancement for an impinging EM beam, compared to that given by a single central slot with no grooves. Here, a 0.566 THz low profile leaky-wave antenna (LWA) with triangular corrugations is numerically and experimentally analyzed. Negligible differences are observed between...
The plasmonic devices based on surface plasmon polaritons (SPPs) are promising to build up compact on-chip integrated circuits for the next generation information technology. It is shown that ultrathin corrugated metallic strips can support the propagating of spoof SPPs in the microwave and terahertz frequencies with low propagation loss and bending loss, and hence can be conveniently manipulated...
A metal mesh shows Drude-like metallic effective permittivity dispersion. By cutting all wires of the mesh, the metal mesh becomes a metal cross array and shows Lorentz-like effective permittivity dispersion. We prepared the samples of metal mesh with random cut systematically and measured the transmission spectra in the terahertz region. The spectra show a characteristic change from metallic to insulating...
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