Design of Coaxial Feed Microstrip Patch Antenna to Reduce Return Loss and Comparing with Square Shaped Antenna

Abstract

The main aim of the work involves designing a novel coaxial feed microstrip patch antenna to reduce return loss by comparing with the square shaped antenna. The desired antenna is made using a rectangular structure that was built on a Rogers RO4350 material with 3.6 dielectric constant, with 3.2 mm substrate height. The performance of the antenna is designed and analyzed servicing Ansoft HFSS 13.0 software. The estimated total sample size is considered to be 40 using 80% of pretest power. Group 1 is considered as coaxial feed MPA and group 2 is considered as square shaped antenna. The co-axial microstrip patch antenna is having return loss of −12.32 dB at 5.4GHz frequency, return loss of the square shaped antenna is −4.35 dB. It has been seen that the significance gap between the two groups is P<0.05. The return loss of novel coaxial feed microstrip patch antenna is significantly less when compared to square shaped antenna.