Title :
Electrically small loop antenna for UHF band RFID tag
Author :
Ahn, Young-Joon ; Harackiewicz, Frances J. ; Kim, Sung-Joo ; Park, Myun-Joo ; Chung, Yong-Seek ; Lee, Byungje
Author_Institution :
Dept. of Wireless Commun. Eng., Kwangwoon Univ., Kwangwoon
Abstract :
UHF band RFID tag antenna which has a similar radiation pattern of the electrically small loop antenna is presented. The structure of the proposed tag antenna is a small circular dipole array on the xy-plane, and the antenna is fed by inductively coupled loop to flow a uniform amplitude and in phased current along its circumference. Since its radiation pattern has an omnidirectional pattern in the xy-plane, the proposed tag antenna can reduce the interference among adjacent tag antennas arranged parallel to xy-plane.
Keywords :
UHF antennas; antenna radiation patterns; dipole antenna arrays; loop antennas; radiofrequency identification; UHF band RFID tag antenna; electrically small loop antenna; omnidirectional pattern; radiation pattern; small circular dipole array; Antenna arrays; Antenna measurements; Antenna radiation patterns; Dipole antennas; Impedance; Interference; Phased arrays; RFID tags; Radiofrequency identification; UHF antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2008. AP-S 2008. IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2041-4
Electronic_ISBN :
978-1-4244-2042-1
DOI :
10.1109/APS.2008.4619847
