DocumentCode
1528715
Title
New reflector-backed Fresnel zone plate antenna using electromagnetic band gap
Author
Lotfi Neyestanak, A.A. ; Jafari Jam, R. ; Biglarbegian, B. ; Safavi Naeini, S.
Author_Institution
Islamic Azad Univ., Tehran, Iran
Volume
4
Issue
7
fYear
2010
fDate
7/1/2010 12:00:00 AM
Firstpage
847
Lastpage
854
Abstract
In this study, a new reflector-backed Fresnel zone plate antenna (FZPA) with electromagnetic band gap (EBG) is presented. The circular FZPA equipped with EBG structures has been simulated by XFDTD software to study the parameters which significantly affect its performance. The proposed antenna has been first fabricated and then validated with the simulation results. Variation effects of the focal-length-to-diameter (F/D) ratios were also investigated. This structure enhances the directivity of the antenna and also improves the side lobes. Finally, the comparison between various types of the FZPA and effect of the EBG is presented.
Keywords
Fresnel diffraction; antenna radiation patterns; focal planes; photonic band gap; reflector antennas; EBG structures; XFDTD software; antenna directivity; circular FZPA; electromagnetic band gap; focal-length-to-diameter ratios; reflector-backed Fresnel zone plate antenna;
fLanguage
English
Journal_Title
Microwaves, Antennas & Propagation, IET
Publisher
iet
ISSN
1751-8725
Type
jour
DOI
10.1049/iet-map.2008.0362
Filename
5503358
Link To Document