Low-profile second-order dual-band miniaturised-element FSS for satellite communications

摘要

A new technique for designing low profile planar dual-band second-order Miniaturised-Element Frequency Selective Surface (MEFSS) is presented for Ka and Ku frequency bands. Initially, a first-order band-pass FSS is designed using metallic square loops and wire grids both of which are printed on the same side of an electrically thin substrate. A dual-band FSS is then realised by adding smaller square loops within the existing lattice. Finally, second-order dual-band frequency response is obtained through printing the new pattern on both sides of a high frequency substrate. Equivalent circuit models, EM full-wave simulations and measurements all give results that are in very good agreement; validating the concept, methodology and the outcome.