JCS_V4_N3_RP4 Chandrakesh Kumar Rajan Mishra Journal on Communication Engineering and Systems 2277-5242 4 3 20 24 Meander line Antenna, Dual band, Defected Ground Structure and Gain In this paper, a single layer dual band, transmission line feed modified meander line antenna is designed which includes two band. This paper focuses on optimum value of gain and return loss. The two band achieved are at center frequency 2.45GHz and 7GHz respectively with -24dB and -23dB return loss. The gain value obtained are 6.35dB and 4.38dB. The antenna is designed on single layer FR4_epoxy substrate with defected ground structure. The designed antenna is best suited to work for the Industrial scientific and Medical (ISM) Application. Antenna is simulated using HFSSv11. May - July 2015 Copyright © 2015 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3454