Matched dielectric slot waveguide as an all-dielectric terahertz magnetic dipole
Daniel Headland,
Ashish Kumar,
Harrison Lees
et al.
Abstract:We observe that the modal field distribution of a dielectric slot waveguide closely resembles a magnetic dipole antenna. Such an aperture distribution traditionally demands metals, making it ill-suited to high frequencies due to excessive ohmic loss. By terminating a dielectric slot waveguide with a matched free-space interface, a compact all-dielectric radiating magnetic dipole is realized. In this way, we introduce general-purpose dipole antennas, which have long been a mainstay of RF and microwave ranges, i… Show more
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