UHF RFID Tag Antenna for Embedded Use in a Concrete Floor

Author

Jeong, Seung-Hwan ; Son, Hae-Won

Author_Institution

Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

1158

Lastpage

1161

Abstract

This letter presents a novel design of the UHF RFID tag antenna suitable for embedded use in a concrete floor (CF). The tag antenna is used to track and trace the location of a shipyard transporter. The proposed antenna consists of a ceramic patch, a parasitic patch (PP), and a metal cavity (MC). The gain of the proposed antenna is highly improved using a PP and an MC because they decrease the electromagnetic energy flow into the CF and increase the directivity and radiation efficiency of the antenna. The proposed design is verified by simulation and measurement. The tag antenna has a high absolute gain of 3.6 dBi and a very long read range of 12.8 m in a direction normal to the CF.

Keywords

UHF antennas; microstrip antennas; radiofrequency identification; UHF RFID tag antenna; ceramic patch; concrete floor; directivity; electromagnetic energy flow; metal cavity; parasitic patch; radiation efficiency; shipyard transporter; Antenna measurements; Antennas; Cavity resonators; Ceramics; Concrete; Gain; Radiofrequency identification; Concrete; metal cavity (MC); parasitic patch (PP); radio frequency identification (RFID); tag antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2172179

Filename

6046097