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In this paper, the randomization and ground effects on the wave propagation in a cut-wire array have been investigated. It is found that randomizing the height of the wires affects the low-frequency cut-wire resonance phenomenon, while randomizing the spacing between wires influences the high-frequency passband/stopband behaviors. The introduction of a lossy ground changes the propagation considerably,...
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...
We apply the ESPRIT algorithm to extract and study the wave propagation mechanisms in a cut-wire array. The propagation and attenuation constants of each propagating mode are extracted. The resulting dominant mode behavior agrees well with Rotman's theory for infinitely long wires at high frequencies and the cut-wire theory at low frequencies. As expected from periodic structures theory, different...
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