A New Compact Slot Antenna for Dual-band WLAN Applications
Mahmood T. Yassen1, Jawad K. Ali2, Ali J. Salim3, Seevan F. Abdulkareem4, Ali I. Hammoodi5, Mohammed R. Hussan6
1Mahmood T. Yassen, Microwave Research Group, Department of  lectrical Engineering, University of Technology, Baghdad, Iraq
2Jawad K. Ali, Microwave Research Group, Department of Electrical Engineering, University of Technology, Baghdad, Iraq,
3Ali J. Salim, Microwave Research Group, Department of Electrical Engineering, University of Technology, Baghdad, Iraq,
4Seevan F. Abdulkareem, Microwave Research Group, Department of Electrical Engineering, University of Technology, Baghdad, Iraq,
5Ali I. Hammoodi, Microwave Research Group, Department of Electrical Engineering, University of Technology, Baghdad, Iraq,
6Mohammed R. Hussan, Microwave Research Group, Department of Electrical Engineering, University of Technology, Baghdad, Iraq,
Manuscript received on September 05, 2013. | Revised Manuscript received on September 11, 2013. | Manuscript published on September 15, 2013. | PP:28-32 | Volume-1, Issue-10, September 2013. | Retrieval Number: J04500911013/2013©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: The design of a simple two patch slotted antenna with an offset microstrip feed line is presented as a candidate for use in 2.4/5.2 GHz wireless local area network, WLAN, applications. The first patch has been designed as a rectangular shape and the other has been designed as an inverted L shape with a protruding stub. The proposed antenna has been supposed to be printed on an FR4 substrate with a thickness of 0.8 mm and relative permittivity of 4.6. The resulting antenna has been found to have a compact size of 25.75×22 mm2 . The antenna offers dual –band characteristics with -10 dB return loss bandwidths of 2.3996 – 2.6309 GHz and 5.1335 – 5.8065 GHz for the lower and the upper resonating bands respectively. This dual-band resonant behavior makes the proposed antenna covering many communication services such as ISM, RFID, WLAN and WiFi applications. Modeling and performance evaluation of the proposed antenna have been carried out using a method of finite integration technique (FIT) based EM simulator, the CST MICROWAVE STUDIO.
Keywords: Compact antennas, Dual band antennas, Slot antennas, Wireless applications, WLAN.