A Printed Monopole Antenna with a Protruding Stub in the Ground Plane for Dual Band WLAN and RFID Applications

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2014 by IJETT Journal
Volume-9 Number-14
Year of Publication : 2014
Authors : Rajneesh Mishra , Ravi Mohan , Sumit Sharma
  10.14445/22315381/IJETT-V9P340

Citation 

Rajneesh Mishra , Ravi Mohan , Sumit Sharma. "A Printed Monopole Antenna with a Protruding Stub in the Ground Plane for Dual Band WLAN and RFID Applications", International Journal of Engineering Trends and Technology (IJETT), V9(14),740-743 March 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract

Design of a simple microstrip fed folded strip monopole antenna with a protruding stub in the ground plane for the application in the WLAN and RFID is presented. The antenna has two resonant paths, one in the radiating element (folded strip) and other in the protruding stub in the ground plane, supports two resonances at 2.41 GHz and 5.82 GHz, which are the center frequencies of the WLAN and RFID. Effectively consistent radiation pattern and large percentage bandwidth has been observed. The percentage bandwidth at 2.41 GHz (2.07 GHz to 2.84 GHz) is 32.98 and the percentage bandwidth at 5.82 GHz (5.54 GHz to 6.14 GHz) is 10.13. The proposed antenna is simple and compact in size providing broadband impedance matching, consistent radiation pattern and appropriate gain characteristics in the RFID frequency range.

References

[1] Zhang, J., X. M. Zhang, J. S. Liu, Q. F. Wu, T. Ying, and H. Jin, “Dual-band bidirectional high gain antenna for WLAN 2.4/5.8 GHz applications," Electron. Lett., Vol. 45, 2009.
[2] Lin, Y. D. and P. L. Chi, “Tapered bent folded monopole for dual-band wireless local area network (WLAN) systems," IEEE Antennas and Wireless Propagation Letters, Vol. 4, 355-357, 2005.
[3] Ren, W., “Compact dual-band slot antenna for 2.4/5 GHz WLAN applications," Progress In Electromagnetics Research B, Vol. 8, 319-327, 2008.
[4] Chen, H. D. and H. T. Chen, “A CPW-fed dual- frequency monopole antenna," IEEE Transactions on Antennas and Propagation, Vol. 52, 978-982, 2004.
[5] Choi, S. H., Lee, H. C., and Kwak, K. S., “A novel K-shaped dual-band antenna with a shorting pin for WLAN communications”, Microw. Opt. Technol. Lett., 2009, 51, (10), pp. 2442–2444.
[6] Thomas, K.G., and Sreenivasan, M., “Compact CPW-fed dual-band antenna”, Electron. Lett., 2010, 46, (1), pp. 13–14.
[7] IE3D version 10.2, Zeland Corp, Freemont, CA, USA. .

Keywords
Monopole antenna, RFID and WLAN.