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In this paper, a metallic waveguide concept that combines dispersion-free and low-loss propagation characteristics with two-dimensional mode confinement over a broad frequency range. Waveguide consists of two planar arranged metalized slabs of 300 mum thickness separated by a 270 mum wide slit. The width a of each slab in x-direction is 20 mm and is considered as quasi-infinite in terms of the propagating...
In this work, electric field dynamics of terahertz signals guided along straight and bended metallic slit waveguides are investigated. Metallic slit waveguides provide low-loss and non-dispersive signal propagation at THz frequencies. Here, spatiotemporal field mappings are employed to demonstrate highly confined and undistorted THz signal propagation in metallic slit waveguides. Low-loss propagation...
In this work, we investigate the propagation behavior of THz surface-wave pulses along bare and dielectrically coated metal wires. Frequency-dependent attenuation and dispersion parameters are determined in the range of 0.02 THz to 0.4 THz with an optoelectronic time-domain measurement setup. Our results are in good agreement with numerical field simulations considering the propagation of an axial...
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