Design of Iris Substrate Integrated Waveguide Cascaded Filter

The aim of this work is to design a Substrate Integrated Waveguide Filter to control the propagation constant by cascading the SIW stages. The design of Iris SIW Cascaded Filter has been designed by cascading the SIW stages of same length, with varying Iris windows and experimented for Propagation Constant at each stages. A fitness Function is introduced to check the efficiency of proposed model by comparing the proposed model with simple rectangular waveguide.