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A dual‐band near‐field focused reflectarray antenna for RFID applications at 0.9 and 2.4 GHz
Author(s) -
Chou HsiTseng,
Hsueh PaiHan,
Hung TsoMing,
Kuo LiRuei,
Chou HsiHsir
Publication year - 2011
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2011rs004750
Subject(s) - antenna (radio) , multi band device , aperture (computer memory) , optics , radiation , near and far field , computer science , physics , dual (grammatical number) , radiation pattern , telecommunications , acoustics , art , literature
This paper presents a dual‐band reflectarray antenna which operates at 0.915 and 2.4 GHz to radiate electromagnetic fields focused in the near‐zone of array aperture. The design uses two stacked feed antennas operated at 0.915 and 2.4 GHz, respectively, so that the currently available RFID systems in the market can be simultaneously used in an independent fashion. Numerical investigations on the radiation characteristics of this reflectarray, as well as an experimental validation, are presented to demonstrate its feasibility.