JCS_V5_N3_RP7 Compact Slotted Microstrip Patch Antenna for X-Band Alok Kumar Gupta Rajan Mishra Journal on Communication Engineering and Systems 2277-5242 5 3 38 42 Microstrip Line Feeding, Rectangular Tunning Stub, Tappared Slotted Ground, X-band In this paper, a planar slotted microstrip antenna with rectangular slotted patch used as the single radiating element and tapered shape slot in ground has been designed and analyzed. The proposed antenna is compact in size with an 3 overall dimension of 22×24×1.6 mm . This antenna is fabricated on FR-4 epoxy substrate with relative permittivity of 4.4 and loss tangent of 0.02 and 50Ω. Resistance is used as the characteristics impedance for microstrip line feed, being compact in size, antenna still achieves a bandwidth of wide range from 3.6 GHz to 11.8 GHz. By properly adjusting the feed gap (h), that is the distance between the tuning stub and the slot in the ground plane, determines the coupling between them and a good impedance matching is obtained and by cutting two slots on the rectangular radiating patch, with dimensions 1.5×1 mm and 1.5×1.5 mm, the gain of the antenna is drastically improved and it is found that gain plot is above zero for frequency range of 8 GHz to 12 GHz and a maximum gain of 9.2 dB is obtained at 12 GHz frequency. May - July 2016 Copyright © 2016 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=8067