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Scattering matrix analysis of inverted strip dielectric waveguides

The microwave network theory has been used to analyze the inverted strip dielectric waveguides (ISG). The transverse resonance relations at the step discontinuity are expressed in the form of scattering matrices. The scattering matrices and their variation over a frequency range of 40–80 GHz have been obtained. The leakage from the structure has also been obtained in terms of strip width.