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Suppression of unwanted surface waves supported by a grounded dielectric slab can be achieved by periodically loading the substrates to create a forbidden frequency band for propagation. Approximate formulas for designing such loading are given and verified by means of a numerical full-wave analysis.
Microwave Symposium Digest, 1998 IEEE MTT-S International (Volume:3 )
Date of Conference: 7-12 June 1998