Array design for electromagnetic compatibility

Array pattern depend on type of elements, spacing between the elements and length of the array etc., conventionally elements are spaced at λ/2 in an array. However, in the present work some studies are made to generate the normalized radiation patterns for different spacings and different types of elements. It has been possible to control the radiation pattern by controlling the spacings between the elements. The studies are unique as the arrays considered contain non-identical elements with non-uniform spacing. The results are useful for the design of arrays to produce low sidelobes for EMI suppression.