DESIGN AND SIMULATION OF KU-BAND MICROSTRIP PATCH ANTENNA FOR SATELLITE INTERCHANGE APPLICATION

Abstract

In the satellite communication system, the Microstrip patch antenna are playing a very important role. This paper reports a novel design of Ku band microstrip patch antenna for satellite interchange application. The proposed antenna is compact with an overall size of 21.258 X 18.25 X 1.4 mm3

. The antenna design consist of RT/Duroid 5880 (dielectric constant 2.2) patch and substrate. A very thin layer of the metallic sheet has also been used below the substrate for the ground plane. The simulation have been done here in COMSOL Multiphysics.Various antenna parameters such as far-field radiation pattern, gain, directivity, input impedance, and VSWR have been obtained and analyzed. The designed antenna has been thoroughly analyzed by varying geometrical parameters of the patch to study their impact on return loss, gain, and directivity enhancement, which helps to optimize the design as per our application. The proposed antenna is excited by a 50 Ω microstrip transmission line, and the antenna has achieved good impedance matching. The reported antenna design has been optimized to operate in the Ku band at resonant frequency 12.75 GHz for a wide range of applications in satellite communications, direct-transmission satellites or satellite television, etc.