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Dielectric-Loaded Microwave Rectangular Waveguide and Higher Order Modes Resonator

Published

Author(s)

Christopher L. Holloway, Abdulaziz H. Haddab, Edward Kuester

Abstract

Resonant transmission through a dielectric-loaded slot in a thick conducting diaphragm embedded in a rectangular waveguide is modeled using an analytical approximation based on the slot being small compared to a free space wavelength. Image theory relates this problem to a metasurface consisting of an array of such slots. We demonstrate the existence of ordinary (Fabry-Perot) transmission resonances associated with the fundamental mode of the slot, as well as extremely narrowband (Fano) resonances involving the higher-order modes in the slot. The theoretical predictions are confirmed through full-wave numerical simulation and by experimental measurement. The results have potential application to sensors material property measurement.
Citation
IEEE Transactions on Antennas and Propagation
Volume
69
Issue
11

Keywords

Extraordinary transmission, dielectric-loadedslots, loaded waveguide, Fano resonance, metasurfaces

Citation

Holloway, C. , Haddab, A. and Kuester, E. (2021), Dielectric-Loaded Microwave Rectangular Waveguide and Higher Order Modes Resonator, IEEE Transactions on Antennas and Propagation, [online], https://doi.org/10.1109/TAP.2021.3082997 (Accessed June 12, 2024)

Issues

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Created June 2, 2021, Updated February 16, 2022