DESIGN AND MAKING OF ELECTROMAGNETIC PROPAGATION SIMULATION SOFTWARE USING TRANSMISSION LINE MODELLING METHOD IN MATLAB

• Main Author: MARTIN (Nim :13311018); STEVEN LUKAS GOENTORO (Nim : 13311098); Pembimbing : Prof. Hermawan, MICHAEL
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20280
• Institution: Institut Teknologi Bandung

Electromagnetic simulation software is needed in order to accomodate the optical and photonic device's recent development. In this thesis, we will design a software that can be utilized to simulate an electromagnetic wave propagation, one and two spatial dimension in time domain. This program uses the Transmission Line Modelling method, designed in Matlab platform , run in <br /> <br /> <br /> parallel mode in Graphics Processing Unit (GPU). In order to test the performace of the program there are two kind of cases. First, the case which we can derive the solution analytically or semi analytically (to check the accuracy). Second, the case whose analytical solution does not exist (to check the stabillity). For the first case, we will simulate fiber-Bragg-grating (one spatial dimension) and also rectangular and circular waveguide (two spatial dimension). For the second case, we will check the stability in gold nanowire and coupled circular resonant cavity waveguides. Beside those things, this program is also applied to design a biochemical sensor based on fiber-Bragg-grating. The accuracy testing in fiber-Bragg-grating gives error result of 1.64% with computational scale 11, in rectangular waveguide, the error is 0.06% for mesh step 50 &#956;m and simulation time 707 seconds, in circular waveguide, the error is 0.5% for mesh step 0.07 &#956;m and real time 7 picoseconds. The stability check for the second case implies that this program is stable for mesh step and real time variation. The program which <br /> <br /> <br /> runs in parallel mode at GPU can reduce simulation time compared to CPUunparallel-mode.