Analysis of Oversized Electrodynamic Systems by a Combined Method Based on the Principle of Physical Optics and the Multilevel Fast Multipole Algorithm

The multilevel fast multipole algorithm (MLFMA) is often used to speed up the solution of surface integral equations in electromagnetics. The method makes it possible to calculate electrodynamic systems with characteristic sizes of hundreds of wavelengths on a personal computer in a relatively short...

Full description

Saved in:
Bibliographic Details
Published in:Radiophysics and quantum electronics 2022-10, Vol.65 (5-6), p.442-450
Main Authors: Gashturi, A. P., Sobolev, D. I.
Format: Article
Language:English
Subjects:
Algorithms
Analysis
Astronomy
Astrophysics and Astroparticles
Electromagnetism
Hadrons
Heavy Ions
Integral equations
Lasers
Mathematical analysis
Mathematical and Computational Physics
Methods
Microwaves
Multipoles
Nuclear Physics
Observations and Techniques
Optical Devices
Optics
Personal computers
Photonics
Physical optics
Physics
Physics and Astronomy
Principles
Quantum Optics
Theoretical
Transmission lines
Waveguides
Wavelengths
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The multilevel fast multipole algorithm (MLFMA) is often used to speed up the solution of surface integral equations in electromagnetics. The method makes it possible to calculate electrodynamic systems with characteristic sizes of hundreds of wavelengths on a personal computer in a relatively short time (a few hours). The paper demonstrates the use of the MLFMA together with the principle of physical optics for fast calculation of microwave radiation between the elements of the mirror transmission lines. The complexity of the calculation is O(NlogN), where N is the number of elementary parts of the mirror surfaces involved in the calculation. Thus, the calculation time for a transmission line with characteristic total mirror sizes of hundreds of wavelengths is a few minutes. By using this method, it is also possible to significantly speed up the calculation of fields in oversized transmission lines, including both waveguides and mirrors, without loss of accuracy.
ISSN:0033-8443
1573-9120
DOI:10.1007/s11141-023-10225-3