Title :
Design and applications of Huygens metasurfaces
Author :
A. Epstein;J. P. S. Wong;G. V. Eleftheriades
Author_Institution :
University of Toronto, The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, 40 St. George St., Toronto, ON, Canada M5S 2E4
Abstract :
We present a complete methodology for the design of Huygens metasurfaces (HMS), structures combining electric and magnetic polarizable particles to tailor the fields on their aperture based on the equivalence principle. This includes a semianalytical spectral formalism to design metasurface radiators for a variety of excitation configurations, and a systematic method for engineering printable subwavelength elements to implement them, which, together, extend the potential range of HMS applications substantially beyond beam manipulation. As an example, a single-feed cavity-excited HMS is optimized to exhibit a high aperture efficiency of 88%.
Keywords :
"Optical surface waves","Apertures","Surface impedance","Magnetosphere","Electromagnetics","Metamaterials","Magnetic materials"
Conference_Titel :
Advanced Electromagnetic Materials in Microwaves and Optics (METAMATERIALS), 2015 9th International Congress on
DOI :
10.1109/MetaMaterials.2015.7342524
