Gain Enhancement for Wearable 5G Antenna on PVA thin film substrate

This paper presents a 5G wearable antenna design using Polyvinyl alcohol (PVA) thin film. The antenna is designed on PVA thin film as substrate with the dielectric and tangent loss of 1.853 and 0.04 respectively. Since the material has high tangent loss, the gain of the antenna will be very low. Hence, impedance matching on the transmission line has been chosen to increase the antenna gain. By this technique the gain has been improved from 1.57 dBi to 2.20 dBi around 40.13% improvement. The S11 also improved from -17.05 dB -41.25 dB with the impedance matching of 55.5 Ω to 50 Ω respectively.