A Microstrip Antenna Design and Performance Analysis for RFID High Bit Rate Applications

Lately, an interest has grown greatly in the usages of RFID in an un-presidential applications. It is shown in the adaptation of major software companies such as Microsoft, IBM, and Oracle the RFID capabilities in their major software products. For example Microsoft SharePoints 2010 workflow is now fully compatible with RFID platform. In addition, Microsoft BizTalk server is also capable of all RFID sensors data acquisition. This will lead to applications that required high bit rate, long range and a multimedia content in nature. Higher frequencies of operation have been designated for RFID tags, among them are the 2.45 and 5.8 GHz. The higher the frequency means higher range, and higher bit rate, but the drawback is the greater cost. In this paper we present a single layer, low profile patch antenna operates at 5.8 GHz with pure resistive input impedance of 50 and close to directive radiation. Also, we propose a modification to the design in order to improve the operation band width from 8.7 to 13.8

Authors:

• Ibrahim S. Alnomay
• Jihad Y. Alhammad

Keywords:

• Microstrip Antenna
• RFID
• U-shaped
• double layer
• circular antenna.

References:

[1] A.T. Mobashsher, N. Misran, and M.T. Islam, " Design analysis of
compact dual-band microstrip RFID reader antenna," International Conference
on Space Science and Communication, IconSpace 2009,pp. 83-
88,Oct 2009.
[2] J.R. Panda, and R.S. Kshetrimayum, " A printed inverted double Lshaped
dual-band monopole antenna for RFID applications," Applied
Electromagnetics Conference (AEMC),pp 1-3, Dec 2009.
[3] P.T. Selvan, and S. Raghavan, " Neural Network Model for Design of
Compact CPW fed Monopole Antenna for 5.8 GHz RFID Application,"
International Conference on Computing Communication and Networking
Technologies (ICCCNT), pp. 1-5, July 2010.
[4] Goojo Kim, Yongkwon Park and You Chung Chung, "Circular UHF RFID
tag antenna and relationship between reading range and RCS of the tag
antenna," IEEE International Symposium on Antennas and Propagation,
pp. 1757-1760,June 2007.
[5] S. Nambi, and S.M. Wentworth, "5.8 GHz dual-polarized aperturecoupled
microstrip antenna," IEEE International Symposium on Antennas
and Propagation, Vol.1A, pp. 235-238, July 2005.
[6] M.M. Abd-Elrazzak, and Ibrahim S. Al-Nomay, " A Design of a Circular
Microstrip Patch Antenna for Bluetooth and HIPERLAN Applications,"
The 9th Asia-Pacific Conference on Communications (APCC), Vol.3, pp.
974-977, Sept. 2003.
[7] Girish Kumar, and K.P. Ray, "Brodband Microstrip Antennas", ARTECH
HOUSE, first edition, 2003.
[8] M.M. Abd-Elrazzak, and Ibrahim S. Al-Nomay, " A finite difference
time domain analysis of WLAN small disc antennas," The Twenty-Second
National Radio Science Conference, pp. 163-172, march 2005.