Title :
Skew Incidence Plane-Wave Scattering From 2-D Dielectric Periodic Structures: Analysis by the Mortar-Element Method
Author :
Tibaldi, Alberto ; Orta, Renato ; Peverini, O.A. ; Addamo, G. ; Virone, G. ; Tascone, R.
Author_Institution :
Dept. of Electron. & Telecommun., Politec. di Torino, Turin, Italy
Abstract :
A full-wave simulator of 2-D dielectric periodic structures under skew plane wave incidence is presented in this paper. A differential formulation is used and the boundary value problem is solved by means of a multi-domain spectral method. Suitable mappings allow the efficient analysis of dielectric elements with rounded corner cross sections. A comparison with the results obtained by the method of moments and with a commercial simulator is presented for an array of dielectric rods and for a surface-relief diffraction grating.
Keywords :
boundary-value problems; diffraction gratings; electromagnetic wave scattering; method of moments; spectral analysis; 2-D dielectric periodic structure; boundary value problem; dielectric rod array; differential formulation; full-wave simulator; method of moment; mortar-element method; multi-domain spectral method; rounded corner cross section; skew incidence plane-wave scattering; surface-relief diffraction grating; Arrays; Dielectrics; Electromagnetics; Equations; Method of moments; Periodic structures; Ports (Computers); Dielectric structures; mortar matching; periodic structures; spectral methods; surface-relief diffraction gratings;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2014.2373360
