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Analysis of Arbitrary Gap Waveguide Structures Using Mode Matching Approach

Gap waveguide components combine the ideas of parallel plate waveguide and electromagnetic bandgap to form an efficient high-frequency waveguiding structure. Since the concept is based on using finite quasi-periodic structures with bandgap properties the analysis is very complex. The proposed analysis method is based on efficient use of Mode Matching technique to rigorously determine the scattering of each element in the structure. The results of the developed program are verified using full-wave commercial software. The needed computing time for analyzing gap waveguide components using our program is in the order of seconds, thus the developed program is suitable for iterative optimization and design process.

waveguide components ; gap waveguides ; mode matching ; periodic structures

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