CAD of Resonant Circular Iris Waveguide Filter with Dielectric Filled Cavities

摘要

Resonant Iris bandpass filters form compact structures. Filters composed of circular irises formed as a junction between two circular waveguide cavities has been designed. Mode matching method has been used to analyze discontinuity present in this filter. By using generalized scattering matrix method all the discontinuities that compose the filter are cascaded to obtain its performance. The filter dimensions have been further optimized to meet specifications more precisely. Filters with both empty and dielectric filled circular waveguide cavities between irises have been designed and optimized.