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A broadband reflectarray antenna with double square rings
Author(s) -
Chaharmir M. R.,
Shaker J.,
Cuhaci M.,
Ittipiboon A.
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21630
Subject(s) - microwave , broadband , bandwidth (computing) , conductor , square (algebra) , optics , radiation , materials science , optoelectronics , engineering , telecommunications , physics , mathematics , geometry , composite material
A reflectarray antenna composed of double square rings of variable lengths printed on a conductor‐backed substrate is proposed for reflectarray‐bandwidth enhancement. Using this technique, a single‐layer reflectarray of a wider bandwidth compared to conventional single‐layer reflectarrays is designed, fabricated, and measured. The measured results demonstrate a radiation efficiency close to 52% and 1‐dB gain bandwidth of 9%, centered at 22 GHz. © 2006 Government of Canada. Exclusive worldwide publication rights in the article have been transferred to Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1317–1320, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21630