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The surface wave propagation along a closely-spaced folded cylindrical helix (FCH) array is investigated for the purpose of minimizing the size of the array element. It is found that the height of this surface wave guiding structure can be decreased from 0.24 λo to 0.06 λo by replacing the monopole with the folded cylindrical helix. The frequency band of the surface wave supported by the helix array...
The surface wave propagation in a 1-D randomized metal wire array is studied using a simulation approach. First we establish the baseline of this research by simulating wideband transmission data and near electric fields for a uniform height, uniform spacing array. The surface wave propagation inside the array is identified and characterized. Then we perturb the wire element heights to investigate...
Wave propagation mechanisms in a lossy dielectric rod array are examined using full-wave simulation and homogenization theory. Both approaches show that a slab mode and an air mode propagate in the structure with different phase velocities. The propagation constants, attenuation constants, and field distributions of these two dominant mechanisms are extracted from simulation data and compared to those...
We study the effective propagation and attenuation constants for wave propagation in a cut-wire array of finite metal wires. The effective propagation constant is obtained from the phase of the transmission data collected inside the array. The effective attenuation constant is then calculated by using the Kramers-Kronig relationship. The reconstructed transmission loss from the resulting attenuation...
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