Design of a UHF RFID fiber tag antenna with electric-thread using a sewing machine

Author

Kim, Goojo ; Lee, Jinseong ; Lee, Kyoung Hwan ; Chung, You Chung ; Yeo, Junho ; Moon, Byung Hyun ; Yang, Jeenmo ; Kim, Hee Cheol

Author_Institution

Ubiquitous Technol. Res. Center, Daegu

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

An RFID tag antenna with electric-thread using a sewing machine is proposed. The characteristics of the electric-thread used as tag antenna are studied and the changes of conductivity for different sewing methods are analyzed. The electro-thread tag antenna is designed by the shape of alphabet characters. The radiation efficiency is about 33% and the measured maximum reading range is about 2.5m in an anechoic chamber. It is demonstrated that the electro-thread is possible to be directly applied to clothes as a brand or company marks. However, it is necessary to develop some additional technology for packaging to protect a tag chip from laundry and wrinkle.

Keywords

UHF antennas; antenna radiation patterns; radiofrequency identification; sewing machines; UHF RFID fiber tag antenna; anechoic chamber; electric-thread; sewing machine; Conductivity; Copper; Frequency; Impedance; Manufacturing; RFID tags; Radiofrequency identification; Supply chain management; Transmitting antennas; UHF antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4958396

Filename

4958396