jcs.6.4.13806 Microstrip Patch Antenna for X-Band Application Using Defected Ground Structure Brijesh Kumar Maurya Manish Kumar Journal on Communication Engineering and Systems 2277-5242 6 4 24 28 10.26634/jcs.6.4.13806 Patch Antenna, X-band, Defected Ground Structure, Bandwidth In this paper microstrip patch antenna using two rectangular slots with defected ground structure is designed for X–band application. The bandwidth of proposed antenna is increased by using the defected ground structure and slot at solution frequency of 9.3 GHz with microstrip line feeding technique. The radiated rectangular patch is mounted on RT/duroid 5880 dielectric substrate having thickness of 0.508 mm and dielectric loss of 2.2. The return loss of -35.21 dB is obtained and a bandwidth of 910 MHz at a solution frequency of 9.3 GHz in the X-band range is also observed. August - October 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13806