Progress In Electromagnetics Research
ISSN: 1070-4698, E-ISSN: 1559-8985
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By C. P. Yuan and T.-H. Chang

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This work presents a theoretical method to solve metal-stub photonic-band-gap (PBG) problems based on the multiple-scattering and modal analysis methods. The multiple-scattering method is generalized, which replaces the scattering coefficient by a mode-coupling matrix. Corresponding sizes between the full dielectric cylinder and the metal stub could be determined based on modal analysis. The metal stub can generate a similar frequency response to that of the full dielectric cylinder, implying that the metal stub is a good substitute for the dielectric cylinder. An experiment conducted at a low terahertz region verifies the theoretical predictions. This work offers a possibility to design two-dimensional photonic crystals using metal stub by adjusting its height for low terahertz applications.

C. P. Yuan and T.-H. Chang, "Modal Analysis of Metal-Stub Photonic Band Gap Structures in a Parallel-Plate Waveguide," Progress In Electromagnetics Research, Vol. 119, 345-361, 2011.

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