Title :
Design and analysis of frequency-selective surfaces for ultrawideband applications
Author :
Ranga, Y. ; Matekovits, L. ; Esselle, Karu P. ; Weily, Andrew R.
Author_Institution :
Centre for Microwave & Wireless Applic., Macquarie Univ., Sydney, NSW, Australia
Abstract :
In this paper we investigate a multilayer frequency-selective surface (FSS) and its potential use in ultra wideband (UWB) antennas. A complete design and analysis of the FSS with an example UWB antenna is presented. The multilayer FSS provides an appropriate reflection phase to act as a reflector for the UWB antenna and is able to enhance its gain. A design guideline for the FSS is presented via a parametric study. Evaluation of the multilayer FSS with a UWB slot antenna shows a significant enhancement of gain across an ultra wideband (140%) impedance bandwidth. Its compact configuration provides flexibility for mounting the reflector close to the slot antenna geometry and makes it more suitable for various UWB devices. Simulations show a linear phase response across 4 to 12 GHz band which is sufficient for ultra wideband operation.
Keywords :
frequency selective surfaces; slot antennas; ultra wideband antennas; bandwidth 4 GHz to 12 GHz; frequency-selective surfaces; multilayer FSS; slot antenna geometry; ultra wideband antennas; ultrawideband applications; Bandwidth; Frequency selective surfaces; Gain; Nonhomogeneous media; Reflector antennas; Slot antennas; Ultra wideband antennas; Electromagnetic Band Gap; FSS; UWB Systems;
Conference_Titel :
EUROCON - International Conference on Computer as a Tool (EUROCON), 2011 IEEE
Conference_Location :
Lisbon
Print_ISBN :
978-1-4244-7486-8
DOI :
10.1109/EUROCON.2011.5929186
