Coupling Impact Between a Radial Antenna and Guided Modes on Twisted-Pair Systems Operating in Millimeter-Wave
Recent research points out that transmission at terabits per second (Tbps) is feasible over copper cables if they were used as millimeter waveguides. The challenge is how to efficiently couple signals to the higher-order modes of twisted-pairs. This paper investigates the effectiveness of radial antennas on the coupling of near-terahertz signals to twisted-pairs. For that, the scattering parameter of the proposed antenna and the intensity of the electric field around the pairs are evaluated from numerical simulations. We also present the attenuation coefficients of four guided modes in a twisted-pair with typical constructive parameters and evaluate aggregate data rate results through Shannon's capacity. The results indicate the coupling efficiency may reach up to 71.62%, yielding an aggregate data rate over copper cables up to 0.17 Tbps at 10 m.
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