Design of Half Mode Substrate Integrated Waveguide (HMSIW) filter with series Defective Microstrip Structure (DMS) for Ku band operation

Design of a Half Mode SIW Filter (HMSIW) for Ku band operation has been presented in this paper. Defective Microstrip Structure (DMS) consisting of a single and multiple slots has been introduced and the effect has been studied. The structure is smaller in size and also cost effective due to the half TE10 mode. The effect of introducing single and multiple resonant slots to create stopband within the passband of the filter has been studied validated with simulation results. The proposed technique has been found quite useful in designing HMSIW bandpass filters.