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In this work we studied the properties of cylindrically periodic dielectric waveguide by calculating the leaky wave poles of the pertinent spectral Green's function. The mode distribution can then be obtained by applying the theory of residues. The results are validated with simulations in HFSS.
This letter proposes a new topology of antenna based on the use of planar circularly symmetric electromagnetic band gap (PCS-EBG) with different periodicities. These periodicities are used to impose different propagation velocities of the dominant surface waves on different zones of the same dielectric substrate. The control of the dispersion characteristics guides the design together with the definition...
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