A Low-Profile Antenna With Quasi-Isotropic Pattern for UHF RFID Applications

Author

Liang Liang ; Hum, S.V.

Author_Institution

Edward S. Rogers Sr. Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

Volume

12

fYear

2013

fDate

2013

Firstpage

210

Lastpage

213

Abstract

This letter presents a simple low-profile antenna for active UHF radio frequency identification (RFID) applications in the North American band. The antenna has a simple layout and a quasi-isotropic radiation pattern. The antenna layout consists of a bent dipole with a T-matching network and a ground plane with two slots. These features produce a pair of crossed electric and magnetic dipoles, which collectively produce a quasi-isotropic radiation pattern. The simplicity of the layout facilitates electronic circuit placement necessary for operation of an active RFID tag.

Keywords

UHF antennas; antenna radiation patterns; dipole antennas; radiofrequency identification; T-matching network; UHF RFID; UHF antennas; antenna layout; bent dipole; crossed electric dipoles; electronic circuit placement; ground plane; low-profile antenna; magnetic dipoles; quasiisotropic radiation pattern; radiofrequency identification; Antenna measurements; Antenna radiation patterns; Dipole antennas; Gain; Impedance; Radiofrequency identification; Antenna radiation patterns; UHF antennas; antennas; compact antennas; quasi-isotropic radiation pattern; radio frequency identification (RFID) tags;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2013.2245393

Filename

6451109