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Modal Analysis of Dielectric-Filled Rectangular Waveguide With Transverse Slots

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3 Author(s)
Juhua Liu ; Department of Electronics & Communication Engineering, Sun Yat-sen University, Guangzhou, China ; David R. Jackson ; Yunliang Long

The dispersion relations and modes for a dielectric-filled rectangular waveguide with transverse slots are investigated. The differences between the air-filled and the dielectric-filled rectangular waveguides with transverse slots are analyzed. The dielectric-filled rectangular waveguide with transverse slots supports a leaky waveguide mode, a surface-wave mode and a proper waveguide mode. The complex propagation wavenumber is calculated by enforcing an aperture magnetic field integral equation using either a space-domain approach or a spectral-domain approach. The physical significance of the solutions is explained. The theoretical results agree very well with the results from HFSS simulation.

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:59 ,  Issue: 9 )