Analysis of collocating and non-collocating on near-to-far-field transformation
Journal
Physics and Simulation of Optoelectronic Devices XXXIII
Series/Report No.
Proceedings of SPIE - The International Society for Optical Engineering
Part Of
Proceedings of SPIE - The International Society for Optical Engineering
Journal Volume
13360
Start Page
21
ISSN
0277786X
ISBN (of the container)
978-151068468-3
ISBN
[9781510684683]
Date Issued
2025-03-19
Author(s)
Shih-Chen Yu
Editor(s)
Marek Osiński
Yasuhiko Arakawa
Bernd Witzigmann
DOI
10.1117/12.3044812
Abstract
When calculating the Near-To-Far-Field (NTFF), we need to select a virtual surface. However, in the Finite-Difference Time-Domain (FDTD) method, the electric field and magnetic field are misaligned in space. Therefore, if the electric field is used for far-field calculations, the magnetic field must be obtained by the averaging method. We use collocating to average the magnetic field and compare it with non-collocating. We expect that the result of collocating will be more accurate when the far-field values are at a lower resolution (lower dB).
Event(s)
Physics and Simulation of Optoelectronic Devices XXXIII 2025
SDGs
Publisher
SPIE
Type
conference paper