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International Journal of Antennas and Propagation
Volume 2016, Article ID 6798960, 10 pages
Research Article

Planar Dual-Band Monopole Antenna with an Extended Ground Plane for WLAN Applications

Department of Electrical Engineering, Kuwait University, P.O. Box 5969, Al-Safat, 13060 Kuwait City, Kuwait

Received 10 May 2016; Revised 6 July 2016; Accepted 26 July 2016

Academic Editor: Claudio Gennarelli

Copyright © 2016 Ayman S. Al-Zayed and V. A. Shameena. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A compact planar microstrip-fed monopole antenna designed for dual-band operation is proposed for WLAN applications. The antenna is composed of a rectangular strip monopole in addition to an inverted-L parasitic element that is connected to the truncated ground plane of the microstrip feed. Besides exciting an additional band of operation, the parasitic element also improves the bandwidth of the band excited by the strip monopole. Several simulated parametric studies are conducted to investigate the effects of each geometrical parameter on the behavior of the antenna. Experimental and simulation results demonstrate that the proposed antenna covers the 2.4 and 5.8 GHz bands utilized in WLAN. In both bands, the proposed antenna exhibits good impedance match, moderate gain (approximately 2 dBi), and sustainable omnidirectional-like radiation patterns in both principal planes. An equivalent circuit model of the antenna is also developed.