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Opt Express. 2010 Oct 25;18(22):22614-24. doi: 10.1364/OE.18.022614.

Coupling of terahertz waves to a two-wire waveguide.

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Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2, Canada.


We calculate theoretically the coupling of a terahertz wave from a dipole into a two-wire waveguide. The field transmission and reflection are obtained using a Single Mode Matching (SMM) technique at the input port of the two-wire waveguide. The results show more than 70 percent coupling efficiency for the waveguide using 500 μm radii wires with 2mm center-to-center separation and the exciting field cross section of 1mm × 1mm. The results also show good agreement with the full-wave numerical simulations using the Finite Element Method (FEM).

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