Designing an UHF RFID reader antenna

Author

Norzeli, Syamimi Mohd ; Ismail, Ismarani ; Busu, Mohd Fazruisyam Mohd

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. MARA (UiTM), Shah Alam, Malaysia

fYear

2012

fDate

24-27 June 2012

Firstpage

599

Lastpage

602

Abstract

In this paper, a circularly polarized (CP) E-shaped microstrip single layer patch antenna is designed and analyzed for RFID (Radio Frequency Identification) reader applications. It has one port excited with microstrip line feed mechanism. The physical parameters of the novel structure as well as its partial ground plane are analyzed and optimized using commercial computer simulation technology (CST) simulation packages. Return loss (S₁₁), voltage standing wave ratio (VSWR), directivity and gain are carried out. The results show that the proposed antenna has good impedance and radiation characteristics over the required bandwidth, 860-960 MHz (UHF RFID band). The return loss of the optimized E-shaped microstrip patch antenna is below 10dB over the UHF frequency band. The proposed antenna is very promising for various modern communication applications.

Keywords

UHF antennas; antenna radiation patterns; microstrip antennas; microstrip lines; optimisation; polarisation; radiofrequency identification; CST simulation package; E-shaped microstrip patch antenna; RFID reader antenna; UHF antenna; VSWR; antenna directivity; antenna gain; antenna impedance; antenna radiation characteristics; bandwidth 860 MHz to 960 MHz; circular polarization; computer simulation technology; microstrip line feed mechanism; modern communication; optimization; partial ground plane; radiofrequency identification; return loss; voltage standing wave ratio; Gain; Microstrip; Microstrip antennas; Patch antennas; Radiofrequency identification; Substrates; E-shaped; computer simulation technology (CST); microstrip patch antenna; return loss (S11); voltage standing wave ratio (VSWR);

fLanguage

English

Publisher

ieee

Conference_Titel

Humanities, Science and Engineering Research (SHUSER), 2012 IEEE Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4673-1311-7

Type

conf

DOI

10.1109/SHUSER.2012.6268894

Filename

6268894