A wideband antenna with defected ground plane for WLAN/WiMAX applications

A microstrip-fed wideband antenna with defected ground structure is proposed for WLAN and WiMAX band applications. The proposed antenna uses an annular ring radiator which is encircled by a rhombus shaped strip and the defected ground plane. The ground plane is cambered shaped and cut out by rectang...

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Bibliographic Details
Published in:International journal of electronics and communications 2016-03, Vol.70 (3), p.354-358
Main Authors: Gautam, Anil K., Bisht, Aditi, Kanaujia, Binod Kr
Format: Article
Language:English
Subjects:
Defected ground plane
Microstrip-fed
Wideband antenna
WLAN/WiMAX applications
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Summary:A microstrip-fed wideband antenna with defected ground structure is proposed for WLAN and WiMAX band applications. The proposed antenna uses an annular ring radiator which is encircled by a rhombus shaped strip and the defected ground plane. The ground plane is cambered shaped and cut out by rectangular-shape slot and thus forms a defected ground structure. The parametric study is carried out to study the effects of varying dimensions on the antenna performance. To validate simulation results of the design a prototype is fabricated on the commercially available FR4 material. Measured results shows a good agreement with the simulated results. It is found that the antenna shows wide bandwidth of 86.71% (2.4–6.0GHz) which covers entire WLAN and WiMAX bands. Thus the proposed antenna is well suitable for WLAN/WiMAX applications.
ISSN:1434-8411
1618-0399
DOI:10.1016/j.aeue.2015.12.013