NDLI: A simple and robust technique to retrieve effective refractive index of heterogeneous dielectrics for millimeter-wave applications

Content Provider	IEEE Xplore Digital Library
Author	Aziz, A. Matekovits, L. De Sabata, A.
Copyright Year	2015
Description	Author affiliation: Univ. Coll. of Eng. & Technol., Islamia Univ. of Bahawalpur, Bahawalpur, Pakistan (Aziz, A.) \|\| Dept. of Electron. & Telecommun., Politec. di Torino, Turin, Italy (Matekovits, L.) \|\| Fac. of Electron. & Telecommun., ”Politeh.” Univ. of Timisoara, Timisoara, Romania (De Sabata, A.)
Abstract	In this paper a simple methodology to retrieve the effective refractive index of a heterogeneous dielectric substrate is proposed. The host dielectric material is filled with small spherical dielectric inclusions which are arranged in a cubic lattice to form a heterogeneous dielectric. The proposed technique relies on the determination of the dispersion diagram (DD) of a unit cell that consists of a dielectric cube with a dielectric spherical inclusion at its center. The inhomogeneous substrate results from a 3D periodic repetition of the unit cell. Since only waves those propagate parallel to one of the faces of the unit cell are considered, the DD is 2D. The DD is then restricted to the ΓXMΓ spectral triangle that borders the irreducible first Brillouin zone, due to the symmetry of the structure. The effective refractive index can readily be determined through the slope of the DD, without using scattering parameters.
Starting Page	1
Ending Page	2
File Size	1252055
Page Count	2
File Format	PDF
ISBN	9781467392792
e-ISBN	9781467371971
DOI	10.1109/CEM.2015.7237420
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-01
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Computational modeling Refractive index Metamaterials Dielectrics Dispersion Substrates Antennas
Content Type	Text
Resource Type	Article

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