Title :
Circular UHF RFID tag antenna and relationship between reading range and RCS of the tag antenna
Author :
Kim, Goojo ; Park, Yongkwon ; Chung, You Chung
Author_Institution :
Daegu Univ., Gyeongsan
Abstract :
The different sizes of circular tag antennas have been designed. The different sizes of circular tags will be fit to any circular object such as bottle caps of cosmetics. The outer radius from 8 mm to 40 mm of tags have been fabricated and tested. The 12 mm circular tag has about 1 m reading distance, and 35 mm tag has about 5 m. The relationship between inner and outer radius of the circular tag has been found. In addition, the relationship between the reading distance and RCS of the circular tag has been found.
Keywords :
UHF antennas; radar cross-sections; radiofrequency identification; circular UHF RFID tag antenna; radar cross-section; reading range; Antennas and propagation; Equations; ISO standards; Impedance; Microwave propagation; RFID tags; Radiofrequency identification; Testing; Transponders; UHF antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4395855
