Serbian Journal of Electrical Engineering 2020 Volume 17, Issue 2, Pages: 149-169
https://doi.org/10.2298/SJEE2002149S
Full text ( 1365 KB)
Wave-based digital models of different branch-line couplers
Stošić Biljana P. (University of Niš, Faculty of Electronic Engineering, Niš, Serbia)
Microwave and millimeter-wave communication systems require couplers in
different applications. The aim of this paper is to construct simple wave
digital models of directional couplers with two or three parallel lines. The
idea behind this aim is to be able to model a microstrip structure and to
simulate it using Simulink platform which has already been used extensively
by researchers. Advanced Design System (ADS) software and MATLAB/Simulink
environment are used to design, implement and simulate the investigated
microstrip circuits and their models. Validity and accuracy of the presented
digital models are fully demonstrated through several benchmark problems.
Keywords: coupler, Branch-line coupler, microstrip circuit, wave digital model, circuit simulator