Compact microstrip patch UHF-RFID tag antenna for metal object

Author

Faudzi, N.M. ; Ali, M.T. ; Ismail, Idris ; Jumaat, H. ; Sukaimi, N.H.M.

Author_Institution

Antenna Res. Group (ARG), Univ. Teknol. Mara (UiTM), Shah Alam, Malaysia

fYear

2014

fDate

Sept. 28 2014-Oct. 1 2014

Firstpage

160

Lastpage

164

Abstract

A compact microstrip patch ultra-high-frequency (UHF) RFID tag antenna mountable on metal object is proposed in this paper. The antenna, which has a very simple structure without any shorting pin and shorting plate, is composed of meander feed line, rectangular loop and double T-match structure. The insertion of ground plane in the tag antenna design reduces the negative impact of metal objects to the performance of the tag antenna. The tag with the overall dimension of 58 × 34 × 0.85 mm³ is designed to operate in Malaysia frequency range with the center frequency of 921 MHz. The performance of the tag is evaluated through simulation and measurement in terms of impedance matching, S-Parameter and tag reading range. From measurement, the tag reading range obtained is 2.8 m in free air, while on metal object is 2.0 m.

Keywords

S-parameters; UHF antennas; antenna feeds; impedance matching; microstrip antennas; radiofrequency identification; Malaysia frequency range; S-parameter; T-match structure; frequency 921 MHz; impedance matching; meander feed line; metal object; microstrip patch UHF-RFID tag antenna; rectangular loop; size 0.85 mm; size 34 mm; size 58 mm; ultrahigh frequency RFID tag antenna; Antenna measurements; Antennas; Frequency measurement; Impedance; Metals; Radiofrequency identification; Semiconductor device measurement; RFID; double T-match; meander; metal; rectangular loop; tag antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology and Applications (ISWTA), 2014 IEEE Symposium on

Conference_Location

Kota Kinabalu

Print_ISBN

978-1-4799-5435-3

Type

conf

DOI

10.1109/ISWTA.2014.6981179

Filename

6981179