Miniaturized CPW-Fed Planar Monopole Antenna for Multi-band WLAN/WiMAX Wireless Applications

Authors Ahmed Zakaria Manouare1, Divitha Seetharamdoo2, Saida Ibnyaich3, Abdelaziz El Idrissi1, Abdelilah Ghammaz1

1 Department of Applied Physics, Laboratory of Electrical Systems and Telecommunications, Faculty of Sciences and Technologies, Cadi Ayyad University, 40000 Marrakesh, Morocco

2 Univ. Lille Nord de France, The French Institute of Science and Technology for Transport, Development and Networks (IFSTTAR), LEOST Laboratory, 59650 Villeneuve d’Ascq, France

3 I2SP Research Team, Faculty of Sciences Semlalia, Cadi Ayyad University, 40000 Marrakesh, Morocco

Issue Volume 10, Year 2018, Number 1
Dates Received 25 October 2017; revised manuscript received 11 December 2017; published online 24 February 2018
Citation Ahmed Zakaria Manouare, Divitha Seetharamdoo, et al., J. Nano- Electron. Phys. 10 No 1, 01009 (2018)
DOI 10.21272/jnep.10(1).01009
PACS Number(s) 41.20.Jb, 84.40.Ba, 84.40.Az
Keywords Coplanar waveguide (CPW) feed, Miniaturized antenna, Planar monopole antenna, Multi-band characteristics, WLAN/WiMAX wireless applications.

To incorporate two different communication standards in a single device, a miniaturized dual-band planar monopole antenna is presented in this paper. The proposed antenna is formed by a CPW feed line and a rectangular ring monopole with a vertical strip. The designed antenna has a small overall size of 19 mm ´ 36 mm ´ 1.6 mm. A prototype of the proposed antenna which was fabricated and measured to validate the design shows a good agreement between the simulation and the experiment. The measured results indicate that the antenna has the impedance bandwidths of 650 MHz (2.30-2.95 GHz) and 2460 MHz (3.40-5.86 GHz) at the first and second bands, respectively with a reflection coefficient less than – 10 dB covering all the WLAN bands (2.4/5.2/5.8 GHz) and WiMAX bands (2.6/3.5/5.5 GHz). In addition, the nearly omni-directional and bi-directional radiation patterns are also achieved in both H- and E-planes, respectively. It is also noticeable that a good antenna gain over both operating bands has been obtained. Therefore, this simple compact planar monopole antenna with multi-band characteristics is well suitable for WLAN and WiMAX wireless communication applications. Details of the proposed antenna design and both simulated and experimental results are analyzed and discussed.

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