Microstrip Printed Yagi Antenna for Gain Enhancement Telkomsel Orbit Mobile Wifi

This research discusses the design of a Yagi printed microstrip antenna to enhancement the gain of the mobile wifi Telkomsel orbit, so that the signal received from the BTS is stronger. The antenna is designed to work on 4G LTE services in Indonesia with frequencies in Band 1 (1.920 - 2.170 GHz), namely 2.1 GHz. The integration technique used in this antenna uses feedline integration. This antenna uses FR-4 epoxy substrate material with a dielectric constant
$\varepsilon_{\mathrm{r}}=4.3$
and a substrate thickness of 1.6 mm. This research also compares the values of return loss, VSWR, bandwidth, gain and radiation pattern at the simulation stage with the fabrication results. The addition of the director to the printed Yagi antenna has an effect on improving the performance of the antenna at a frequency of 2.1 GHz by producing a return loss of −20.77 dB, a VSWR of 1.3659, a directivity value of 9.08 dBi, and a gain of 8.68 dBi.