An Optimized Design of a Dumbbell Shape Electromagnetic Band Gap Structure

This paper focuses on the optimum design of a dumbbell shape electromagnetic bandgap structure on T-line by varying its narrower slot's width keeping bigger square slots dimension constant. Further, the performance of optimum design is compared with the same dimension square shape electromagnetic bandgap structure. From this comparison compactness of the optimum dumbbell shape design is reported. It is seen that an optimized structure is very compact and it yields a wider and deeper stopband.