Design of a loop antenna with stubs for RFID tag

Author

Kim, Uisheon ; Choi, Youngbaek ; Choi, Jaehoon

Author_Institution

Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul

fYear

2008

fDate

5-11 July 2008

Firstpage

1

Lastpage

4

Abstract

In this paper, a loop antenna with stubs was investigated for UHF RFID tag application. For reactive impedance matching of a loop, open and short stubs were used. Two types of stubs were designed symmetrically with respect to the feed point of a loop. The impedance of proposed tag antenna can be easily matched to that of tag IC by optimizing the dimensions of stubs. The antenna was fabricated by etching on a thin flexible PCB (Material: Polyimide, epsiv_r=3.4, thickness=1mil). Furthermore, the proposed tag antenna could be designed on thin film or paper using inkjet printing method for simple, fast and low cost fabrication.

Keywords

UHF antennas; impedance matching; loop antennas; radiofrequency identification; UHF RFID tag application; feed point; inkjet printing method; loop antenna; open strubs; reactive impedance matching; short stubs; tag antenna; thin film; thin flexible PCB; Costs; Etching; Fabrication; Feeds; Impedance matching; Polyimides; Printing; RFID tags; Transistors; 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.2008.4619083

Filename

4619083