Title :
UWB Reflectarray Antenna for chipless RFID applications
Author :
Khaliel, Maher ; Fawky, Abdelfattah ; El-Hadidy, Mohammed ; Kaiser, Thomas
Author_Institution :
Digital Signal verarbeitung Inst., Duisburg Essen Univ., Duisburg, Germany
Abstract :
The main limitation of any chipless Radio Frequency Identification (RFID) system is the very short reading range. In this paper, we propose an Ultra Wideband (UWB) Reflectarray Antenna (RA) system with 2.2 GHz bandwidth centered at 6 GHz for the reader of chipless RFID applications. The proposed reader antenna system enhances reader sensitivity, reduces multipath effects, helps in tag localization and a lot of novel capabilities that cannot be provided by the conventional antenna systems. The cell used in the design is the double circular ring where the antenna panel consists of 100 elements (10×10). Simulations show that the proposed antenna system reaches fractional bandwidth (FBW) 37% covering all the feeder bandwidth. This achieved ultra wide bandwidth (UWB) satisfies the requirements of the frequency signature based chipless RFID systems.
Keywords :
antenna accessories; antenna feeds; microwave antenna arrays; radiofrequency identification; reflectarray antennas; ultra wideband antennas; FBW; UWB reflectarray antenna; antenna elements; antenna panel; bandwidth 2.2 GHz; chipless RFID applications; double circular ring cell; feeder bandwidth; fractional bandwidth; frequency 6 GHz; frequency signature; multipath effect reduction; radio frequency identification system; reader antenna system; reader sensitivity; tag localization; ultra wideband RA system; Antenna feeds; Bandwidth; Radiofrequency identification; Reflector antennas; Chipless; RFID; Reflectarray Antenna;
Conference_Titel :
Radio Science Conference (NRSC), 2014 31st National
Conference_Location :
Cairo
Print_ISBN :
978-1-4799-3820-9
DOI :
10.1109/NRSC.2014.6835055
