Title :
Parametric study of EBG bandwidth for grounded square patch arrays by dispersion analysis
Author :
Kehn, Malcolm Ng Mou ; Shafai, Lotfollah ; Foroozesh, Alireza
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB
Abstract :
This paper performs a parametric investigation into a couple of factors that influence the bandgap properties of electromagnetic bandgap (EBG) structures. The most common and easily fabricated grounded square-patch array is showcased here, and the two parameters investigated are the patch size relative to the unit cell and the dielectric slab thickness. It will be shown how a numerical search using just these two parameters along with a simple optimization procedure is able to rapidly arrive at a very wide EBG bandwidth of around 30%. Dispersion analyses of the patch array are entailed in conducting the studies. The concepts for the generation of the dispersion diagrams are also presented.
Keywords :
dielectric materials; microstrip antenna arrays; optimisation; photonic band gap; EBG bandwidth; dielectric slab thickness; dispersion analysis; electromagnetic bandgap; grounded square patch arrays; optimization procedure; patch size; Bandwidth; Dielectrics; Electromagnetic coupling; Frequency; Metamaterials; Paper technology; Parametric study; Periodic structures; Resonance; Slabs; dispersion diagram; electromagnetic bandgap (EBG); stopband-width; surface-wave suppression;
Conference_Titel :
Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting, 2009. ANTEM/URSI 2009. 13th International Symposium on
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-2979-0
Electronic_ISBN :
978-1-4244-2980-6
DOI :
10.1109/ANTEMURSI.2009.4805095
