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A full-wave numerical approach for the analysis and design of two-dimensional printed periodic structures on a grounded dielectric slab is presented. Electromagnetic band-gap surfaces, metamaterials and leaky-wave antennas are important special cases of structures that can be analysed. The proposed technique permits the analysis of an arbitrary metallisation within the unit cell; it is based on a...
In this paper different approaches for the numerical calculation of Green's functions of printed structures with two-dimensional (2-D) periodicity are presented. Recurring to specific asymptotic extractions, several techniques can be used to improve the efficiency of the procedure for a specific geometry. Choices are possible among different asymptotic functions and/or different interpolation algorithms...
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