Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-28T08:21:58.288Z Has data issue: false hasContentIssue false
  • English
  • Français

Design of a novel dual ports antenna to enhance sensitivity of handheld RFID reader

Published online by Cambridge University Press:  21 April 2015

Bo Wang ,
Yiqi Zhuang ,
Xiaoming Li  and
Weifeng Liu
Bo Wang
Affiliation:
School of microelectronics, Xidian University, 710071 Xian, Shaanxi, China
Yiqi Zhuang
Affiliation:
School of microelectronics, Xidian University, 710071 Xian, Shaanxi, China
Xiaoming Li*
Affiliation:
School of microelectronics, Xidian University, 710071 Xian, Shaanxi, China
Weifeng Liu
Affiliation:
School of microelectronics, Xidian University, 710071 Xian, Shaanxi, China
*
Corresponding author:X.M. Li, Email: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

A compact dual ports antenna with high isolation is proposed for handheld radio frequency identification (RFID) reader which is rarely reported in open literatures. Different with conventional handheld RFID reader antennas with single port, the proposed antenna transmits and receives signal separately. The proposed antenna operating with full duplex mode can enhance effectively sensitivity of reader, since the strong transmitting signal of reader with single port is usually highly coupled with weak receiving backscatter signal of tag. The antenna utilizes E-shaped aperture-coupled patch structure that occupies less volume and provides further space-saving efficiency. The height of the proposed antenna is only 6.8 mm and the volume of that is 80 mm × 80 mm × 6.8 mm, which is easy to integrate in handheld RFID readers. The antenna uses two E-shaped coupling apertures to excite two orthogonal modes for dual-polarized operation. High isolation of around −30 dB is obtained by proper arrangement of the length of coupling apertures and the position of the stubs. The measured results show −10 dB matching band and −25 dB isolation band from 2.32 to 2.6 GHz and from 2.3 to 2.55 GHz, respectively. The antenna is suitable for applications in handheld RFID readers.

Keywords

Handheld RFID readerDual portsHigh isolation
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 8 , Issue 2 , March 2016 , pp. 369 - 377
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Hsu, H.T.; Huang, T.J.: A 1 × 2 Dual-band antenna array for Radio-Frequency Identification (RFID) handheld reader applications. IEEE Trans. Antennas Propag., 62 (2014), 5260–5267.CrossRefGoogle Scholar
[2]Bialkowski, M.E.; Razali, A.R.; Boldaji, A.: Design of an ultrawideband monopole antenna for portable radio transceiver. IEEE Antennas Wireless Propag. Lett., 9 (2010), 554–557.Google Scholar
[3]Liu, H.W.; Weng, C.H.; Yang, C.F.: Design of near-field edge-shorted slot microstrip antenna for RFID handheld reader applications. IEEE Antennas Wireless Propag. Lett., 10 (2011), 1135–1138.Google Scholar
[4]Mobashsher, A.T.; Aldhaheri, R.W.: An improved uniplanar front-directional antenna for dual-band RFID readers. IEEE Antennas Wireless Propag. Lett., 11 (2012), 1438–1441.Google Scholar
[5]Wu, T.Q.; Su, H.; Gan, L.Y.; Chen, H.Z.; Huang, J.Y.; Zhang, H.W.: A compact and broadband microstrip stacked patch antenna with circular polarization for 2.45-GHz mobile RFID reader. IEEE Antennas Wireless Propag. Lett., 12 (2013), 623–626.CrossRefGoogle Scholar
[6]Mohammad, O.; Nasser, O.: Dual-band coplanar waveguide-fed monopole antenna for 2.4/5.8 GHz radiofrequency identification applications. Microw. Opt. Technol. Lett., 54 (2012), 2426–2429.Google Scholar
[7]Chou, H.T.; Hung, T.M.; Wang, N.N.; Chou, H.H.; Tung, C.; Nepa, P.: Design of a near-field focused reflectarray antenna for 2.4 GHz RFID reader applications. IEEE Trans. Antennas Propag., 59 (2011), 1013–1018.Google Scholar
[8]Mobashsher, A.T.; Islam, M.T.; Misran, N.M.: A novel high-gain dual-band antenna for RFID reader applications. IEEE Antennas Wireless Propag. Lett., 9 (2010), 653–656.Google Scholar
[9]Buffi, A.; Serra, A.A.; Chou, H.T.; Manara, G.: A focused planar microstrip array for 2.4 GHz RFID readers. IEEE Trans. Antennas Propag., 58 (2010), 1536–1544.Google Scholar
[10]Kibria, S.; Islam, M.T.; Yatim, B.: New compact dual-band circularly polarized universal RFID reader antenna using ramped convergence particle swarm optimization. IEEE Trans. Antennas Propag., 62 (2014), 2795–2801.Google Scholar
[11]Quan, X.L.; Li, R.L.; Cui, Y.H.; Tentzeris, M.M.: Analysis and design of a compact dual-band directional antenna. IEEE Antennas Wireless Propag. Lett., 11 (2012), 547–550.CrossRefGoogle Scholar
[12]Ojaroudi, N.; Ojaroudi, M.: Compact H-ring antenna with dual-band operation for wireless sensors and RFID tag systems in ISM frequency bands. Microw. Opt. Technol. Lett., 55 (2012), 697–770.CrossRefGoogle Scholar
[13]Sun, Z.; Zhong, S.S.; Tang, X.R.; Chen, K.D.: Low-sidelobe circular-polarized microstrip array for 2.45 GHz RFID readers. Microw. Opt. Technol. Lett., 50 (2007), 2235–2237.Google Scholar
[14]Grilo, M.; Arnold, F.J.; Goncalves, M.S.; Bravo-Roger, L.L.; Moretti, A.; Lima, I.T. Jr.: Novel dual-band RFID antenna configuration with independent tuning adjustment. Microw. Opt. Technol. Lett., 54 (2011), 2214–2217.CrossRefGoogle Scholar
[15]Jung, Y.K.; Lee, B.: Dual-band circularly polarized microstrip RFID reader antenna using metamaterial branch-line coupler. IEEE Trans. Antennas Propag., 60 (2014), 786–791.Google Scholar
[16]Padhi, S.K., Karmakar, N.C.; Law, C.L.: An EM-coupled dual-polarized microstrip patch antenna for RFID applications. Microw. Opt. Technol. Lett., 39 (2003), 354–360.Google Scholar
[17]Zhang, M.T.; Chen, Y.B.; Jiao, Y.C.; Zhang, F.S.: Dual circularly polarized antenna of compact structure for RFID application. J. Electromagn. Waves Appl., 20 (2012), 1895–1902.Google Scholar
[18]Nikitin, P.V.; Rao, K.V.S.: Helical antenna for handheld UHF RFID reader, in Int. IEEE Conf. on RFID, Orlando, FL, USA, 2010.Google Scholar