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

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/APS.2008.4619847

Filename

4619847