Title :
Effect of cylindrical metal obstacles on the propagation of bloch waves in a shielded circular “mushroom” structures
Author :
De Sabata, Aldo ; Matekovits, Ladislau ; Ranga, Yogesh ; Orefice, Mario
Author_Institution :
Fac. of Electron. & Telecommun., “Politeh.” Univ. of Timisoara, Timisoara, Romania
Abstract :
A periodic structure of circular “mushroom”-like geometry within the unit cell, positioned between two metal planes inhomogeneously filled by different dielectrics is considered. Within the unit cell, the circular patch is connected to one of the planes by four vias and also loaded with metal cylinders (posts) to broaden the width and reduce the lower limit of the first electromagnetic band-gap, characteristics that are essential, for example, to parallel-plate noise suppression. The parametric studies performed by full-wave electromagnetic simulation provide for the variation of the number of posts as well for the geometric and material parameters of the structure.
Keywords :
electromagnetic wave propagation; periodic structures; photonic band gap; bloch wave propagation; circular mushroom-like geometry; circular patch; cylindrical metal obstacle effect; electromagnetic bandgap; full-wave electromagnetic simulation; material parameters; metal cylinders; metal planes; parallel-plate noise suppression; periodic structure; shielded circular mushroom structures; unit cell; Antennas; Dielectrics; Metals; Metamaterials; Noise; Periodic structures; dispersion engineering; electromagnetic band-gaps; parallel-plate noise suppression; periodic structures;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6901922
