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IJSTR >> Volume 9 - Issue 6, June 2020 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Dgs Structure Array Design For Multiband Communication

[Full Text]



Sarmistha Satrusallya, Mihir Narayan Mohanty



E-Shaped Antenna, Array Antenna, Multiband Communication, Bandwidth, Return Loss, DGS, Ku-Band.



The array antenna provides a better performance as compared to a single element antenna. The requirement of array in many application demands more bandwidth and gain. This paper analyze a multiband antenna array designed for X band and Ku band application. The antenna structure is in the form of a set of three numbers of E shaped antennas. The antenna is printed on a defective ground structure that provides comparatively high gain and suppressed higher mode harmonics. DGS has the advantage of decreasing the mutual coupling between the adjacent elements. FR4 epoxy with dielectric constant of 4.4 is considered as the substrate with a dimension of 20X20mm2and thickness of 1.6mm. The variety of slot provides the higher bandwidth due to its geometry, where the feed line is through microstrip feeding technique. The antenna resonates at 8.5 GHz with an impedance bandwidth of 4.8GHz and at 12.5GHz with an impedance bandwidth of 2.8GHz. The resonating frequencies lie in the range of X band and Ku band. The proposed design is suitable for application in satellite communication.



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