DocumentCode :
494162
Title :
Design method of EBG material with wide defect band
Author :
Moustafa, Lina ; Thevenot, Marc ; Monediere, Thierry ; Jecko, Bernard
Author_Institution :
OSA Dept., Univ. of Limoges, Limoges
fYear :
2009
fDate :
23-27 March 2009
Firstpage :
3235
Lastpage :
3239
Abstract :
A new electromagnetic band gap (EBG) material with defect is proposed. It is constructed by double-layer frequency selective surfaces (FSS) periodically arranged in the zdirection. A periodicity defect is introduced in the middle of the structure. Resulted EBG material with defect is composed of two double-layer FSS with wavelength spacing between them. Due to the presence of the defect, an allowed frequency band is created within the material band gap. The width of the formed defect band is increased compared to classical EBG materials with defect. The new material is applied in the design of a resonator antenna. The resonator, formed by a double-layer FSS and a metallic ground, is fed by a patch source placed at the proximity of the ground. The antenna bandwidth is significantly improved by virtue of employing the EBG material with defect of wider allowed band. The participation of each FSS layer in the antenna bandwidth enhancement is described.
Keywords :
broadband antennas; frequency selective surfaces; microstrip antennas; photonic band gap; EBG material; antenna bandwidth enhancement; broadband patch resonator antenna design; double-layer FSS; double-layer frequency selective surface; electromagnetic band gap material; metallic ground; wavelength spacing; wide periodicity defect band; Antennas and propagation; Bandwidth; Design methodology; Dielectric materials; Electromagnetic propagation; Electromagnetic scattering; Frequency selective surfaces; Metamaterials; Periodic structures; Photonic band gap; broadband EBG resonator antenna; wide defect band EBG material;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
Type :
conf
Filename :
5068291
Link To Document :
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