DocumentCode :
72741
Title :
An X-Band Reflectarray With Novel Elements and Enhanced Bandwidth
Author :
Chen, Qing-Yong ; Qu, Shi-Wei ; Li, Jin-Fu ; Chen, Qian ; Xia, Ming-Yao
Author_Institution :
School of Electronic Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, China
Volume :
12
fYear :
2013
fDate :
2013
Firstpage :
317
Lastpage :
320
Abstract :
A novel single-layer reflectarray element with an I-shaped dipole encompassed by a circular ring, showing smooth phase-frequency response, is proposed in this letter. Based on this element, an optimization method is adopted to match the desired phase delays at two edge frequencies so as to get fixed phase difference between two adjacent elements in the optimized band. A low-profile X-band 6 ,\\times, 10-element reflectarray with a scattering angle of 30 ^{\\circ} for normal incidence of plane waves is designed and fabricated. Simulations and measurements show that a bandwidth of 22.3% for 3 dB directivity dropping and 15.2% for {-} 10 dB sidelobe level (SLL) can be achieved.
Keywords :
Bandwidth enhancement; optimization methods; reflectarrays;
fLanguage :
English
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
Publisher :
ieee
ISSN :
1536-1225
Type :
jour
DOI :
10.1109/LAWP.2013.2249652
Filename :
6471735
Link To Document :
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