Abstract
This study aims to determine the effect of changes in perubahan value changes in the Hybrid coupler on the return loss, insertion loss, coupling factor and the isolation value at the 3 GHz frequency which is applied to coastal radar. the type of antenna used is a microstrip patch antenna. The material used to design the antenna is FR4 with a substrate thickness of 1.6 mm and has a value of er r = 4.3. This study designed a microstrip branch line coupler with a T-Junction that works at a frequency of 3 GHz with both loss values for (Tx) and (Rx), namely 3 dB and a phase difference of 90 °. The steps taken are after obtaining the length and width values from the formula, then these values are simulated after obtaining the correct value of 3 GHz, then an experiment is carried out with the dielectric constant values of 4.1, 4.3 and 4.6.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
