High gain dual resonant textile microstrip patch antenna design employing denim substrate for vehicle mounted earth station uplink applications

Abstract

This paper presents a novel textile microstrip antenna employing substrate of Denim material with dielectric constant of 1.6 having dimensions are 23.32mm × 27.8mm × 0.7mm. The ground, patch and feed line are of copper material. The proposed antenna is a dual resonant rectangular patch antenna with a square slot on the ground which is operated at 12.00 GHz and 12.67 GHz with corresponding return loss of −41.43 dB and −23.95 dB, respectively. The impedance bandwidth of the proposed textile antenna is 1.011 GHz (11.796 GHz-12.807 GHz) and impedance is 49.81 Ohm. The proposed antenna has been simulated using Computer Simulation Technology Microwave Studio (CST MWS 2014) Software. The performance of proposed textile antenna has been analyzed in terms of impedance bandwidth (GHz), directivity(dBi), gain (dB), return loss (dB), VSWR and impedance (ohms). The proposed antenna design has peak gain and directivity of 8.143 dB and 7.843 dBi at the resonant frequency of 12 GHz. The proposed antenna can be used for vehicle mounted earth station uplink communication applications. The proposed antenna has been practically fabricated and tested using E5071C Network Analyzer with SMA connector. Moreover, it has been concluded that the fabricated antenna experimental results closely matched with the simulated antenna results.