Title :
A miniaturized, circularly polarized antenna for an active 433.92MHz RFID handheld reader
Author :
Yu, Jay J. ; Lim, Sungkyun
Author_Institution :
Hawaii Center for Adv. Commun., Univ. of Hawaii at Manoa, Honolulu, HI, USA
Abstract :
In this paper, a compact-sized, CP antenna for a 433.92-MHz handheld RFID reader application is presented. The basic design of the proposed antenna is a twoelement, miniaturized Yagi antenna composed of a driver and a director. Yagi antenna, one of well known directive antennas, has the advantage of increasing the gain of the handheld RFID reader antenna. The radiation pattern is directional toward the tag position. Since the design is in a dipole shape, no ground plane is needed. The complete dimensions of the antenna are 115 χ 115 χ 13.8 mm. Copper wires with a radius of 0.5 mm are used for each element. All simulations were performed with FEKO.
Keywords :
antenna arrays; antenna radiation patterns; copper; directive antennas; polarisation; radiofrequency identification; RFID handheld reader; Yagi antenna; antenna radiation pattern; circularly polarized antenna; copper wires; dipole shape; directive antennas; frequency 433.92 MHz; ground plane; size 115 nm; size 13.8 nm; Dipole antennas; Directive antennas; Driver circuits; Feeds; Gain; Radiofrequency identification;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5561156
