Dispersion of surface waves supported by truncated metasurfaces
Camacho Aguilar, M
2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, San Diego, CA, 9-14 July 2017, pp. 1721-1722
Institute of Electrical and Electronics Engineers (IEEE)
© 2017 IEEE
The effects introduced in the dispersion of surface waves supported by a metasurface consisting of a negligible thickness perfectly conducting screen perforated with a finite array of slots are studied by means of a very efficient implementation of Galerkin’s version of the Method of Moments with a DeltaGap excitation. A family of higher frequency modes each of which is periodically repeated in the momentum spectrum with decreasing amplitude is found in contrast to the single mode dispersion obtained for an infinite array.
The authors wish to acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC) of the United Kingdom, via the EPSRC Centre for Doctoral Training in Metamaterials (Grant No. EP/L015331/1).
This is the author accepted manuscript. The final version is available from IEEE via the DOI in this record.