Design of Array Antenna with DGS for Multiband Communication

  • Sarmistha Satrusallya, Mihir Narayan Mohanty

Abstract

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. In this paper, a multiband
patch antenna array is 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..The substrate is chosen as FR4 epoxy
with dielectric constant of 4.4 with a dimension of 20X20mm2. 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.

Published
2020-04-13
How to Cite
Sarmistha Satrusallya, Mihir Narayan Mohanty. (2020). Design of Array Antenna with DGS for Multiband Communication. International Journal of Advanced Science and Technology, 29(8s), 3122-3127. Retrieved from http://sersc.org/journals/index.php/IJAST/article/view/16381