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Inverted L-slot triple-band antenna with defected ground structure for WLAN and WiMAX applications

Published online by Cambridge University Press:  26 June 2015

Alaknanda Kunwar ,
Anil Kumar Gautam  and
Binod Kumar Kanaujia
Alaknanda Kunwar
Affiliation:
Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, Uttarakhand-246 194, India. Phone: +91 8979 719 397
Anil Kumar Gautam*
Affiliation:
Department of Electronics & Communication Engineering, G. B. Pant Engineering College, Pauri Garhwal, Uttarakhand-246 194, India. Phone: +91 8979 719 397
Binod Kumar Kanaujia
Affiliation:
Department of Electronics & Communication Engineering, Ambedkar Institute of Advanced Communication Technologies & Research, Geeta Colony, Delhi-110031, India
*
Corresponding author: A.K. Gautam Email: gautam1575@yahoo.co.in
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Abstract

To incorporate two different communication standards in a single device, a compact triple-band antenna is proposed in this paper. The proposed antenna is formed by etching an inverted L-shaped slot on the patch with defected ground structure. The antenna is targeted to excite three separate bands first from 2.39–2.51, second from 3.15–3.91, and third from 4.91–6.08 GHz that covers entire Wireless Local Area Network (WLAN) (2.4/5.2/5.8 GHz) and Worldwide Interoperability for Microwave Access (WiMAX) (2.5/3.5/5.5) bands. Thus, the proposed antenna provides feasibility to integrate WLAN and WiMAX communication standards in a single device with good radiation pattern quality. Furthermore, a prototype of the proposed antenna fabricated and measured to validate the design, shows a good agreement between simulated and measured results. The simulation and measurement results show that the designed antenna is capable of operating over the 2.39–2.51 GHz, 3.15–3.91 GHz, and 4.91–6.08 GHz frequency bands while rejecting frequency ranges between these three bands. The proposed antenna offers a compact size of 20 × 30 mm2 as compared with earlier reported papers.

Keywords

Defected ground planeTriple-band antennaSlot antennaWiMAX/WLAN applications
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 9 , Issue 1 , February 2017 , pp. 191 - 196
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2015 

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References

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