Name of the conference: Asia-Pacific Microwave Conference (APMC)
Date of publication: November 6, 2018
Abstract: This paper proposes a general approach for designing a planar surface, which is able to focus incident waves within a particular direction. The array of factor is derived as a function of several parameters as the number of cells, the inter-element spacing, the intrinsic and structural excitation phase shifts, etc. Theoretical results compare well with simulations for the case in which there is no intrinsic excitation phase shift between the cells. In this case, it is seen that the reflected field is maximally focused in two complementary directions (?0 = ?i, ?0 = ? + ?i) and (?0 = ? - ?i, ?0 = ? + ?i) within a permissible range of the inter-element spacing.