Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
A Novel Combined Potential-Field Formulation for Densely Discretized Perfectly Conducting Objects
Date
2022-01-01
Author
Eris, Ozgur
Karaova, Gokhan
Ergül, Özgür Salih
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
145
views
0
downloads
Cite This
IEEEWe present a novel surface-integral-equation formulation that provides broadband solutions of electromagnetic problems involving perfectly conducting objects. The formulation, namely the combined potential-field formulation (CPFF), is based on a well-balanced combination of the conventional potential integral equations, the magnetic-field integral equation, and an additional potential integral equation involving magnetic vector potential. In addition to being stable for dense discretizations, CPFF is free of internal resonances, and it enables accurate and efficient solutions of large-scale closed conductors using conventional basis and testing functions. Numerical results demonstrate that CPFF clearly outperforms other formulations, including the popular combined-field integral equation, for densely discretized objects comparable to or larger than wavelength.
Subject Keywords
Boundary conditions
,
Broadband communication
,
broadband solvers
,
dense-discretization problems
,
Electric potential
,
Integral equations
,
Magnetic domains
,
Magnetic resonance
,
potential integral equations
,
Standards
,
Surface integral equations
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85124095158&origin=inward
https://hdl.handle.net/11511/97505
Journal
IEEE Transactions on Antennas and Propagation
DOI
https://doi.org/10.1109/tap.2022.3145425
Collections
Department of Electrical and Electronics Engineering, Article
Suggestions
OpenMETU
Core
A Broadband Electromagnetic Solver Based on Multiscale MLFMA and Hybrid Integral Equations
Karaosmanoglu, Bariscan; Tonga, Muhammed; Ergül, Özgür Salih (2018-11-02)
We present a fully broadband solver for fast and accurate solutions of multiscale electromagnetic problems involving both coarse and fine details. The implementation is based on a multiscale multilevel fast multipole algorithm that employs low-frequency and high-frequency expansions at suitable levels of incomplete tree structures. In addition, hybrid integral equations are used to properly formulate scattering and radiation problems in the frequency domain. Numerical results demonstrate the superior accura...
Accurate and Efficient Solutions of Densely Discretized Closed Conductors Using a Combined Potential-Field Formulation
Karaova, Gokhan; Eris, Ozgur; Ergül, Özgür Salih (2021-01-01)
We present an accurate, efficient, and stable formulation for rigorous analyses of electromagnetic problems involving closed conductors. The formulation, namely the combined potential-field formulation (CPFF), is constructed from the conventional potential integral equations and the magnetic-field integral equation, together with an additional integral equation using the boundary condition for the normal component of the magnetic vector potential. Being both low-frequency-stable and resonance-free, CPFF is ...
A Comparative Study of Surface Integral Equations for Accurate and Efficient Analysis of Plasmonic Structures
Karaosmanoglu, Bariscan; Yilmaz, Akif; Ergül, Özgür Salih (2017-06-01)
Surface integral equations, which are commonly used in electromagnetic simulations, have recently been applied to various plasmonic problems, while there is still no complete agreement on which formulations provide accurate and efficient solutions. In this paper, we present the strong material dependences of the conventional formulations, revealing their contradictory performances for different problems. We further explain the numerical problems in the constructed matrix equations, shedding light on the des...
Penetrable Numerical Modeling of Metallic Nanoparticles at Terahertz Frequencies
İbili, Hande; Karaosmanoglu, B.; Ergül, Özgür Salih (2018-08-04)
Numerical solutions of electromagnetic problems involving nanostructures at terahertz (THz) frequencies are considered. We particularly focus on nanoparticles that are made of typical metals at the lower THz frequencies. Even though the frequency is relatively low, we show that penetrable models are needed for accurately representing electromagnetic characteristics, especially to predict penetrating magnetic fields inside small particles. Due to large permittivity values with negative real parts, stable for...
A novel surface-integral-equation formulation for efficient and accurate electromagnetic analysis of near-zero-index structures
İbili, Hande; Ozmu, Utku; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2022-03-01)
We consider accurate and iteratively efficient solutions of electromagnetic problems involving homogenized near-zero-index (NZI) bodies using surface-integral-equation formulations in the frequency domain. NZI structures can be practically useful in a plethora of optical applications, as they possess near-zero permittivity and/or permeability values that cannot be found in nature. Hence, numerical simulations are of the utmost importance for rigorous design and analysis of NZI structures. Unfortunately, sma...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
O. Eris, G. Karaova, and Ö. S. Ergül, “A Novel Combined Potential-Field Formulation for Densely Discretized Perfectly Conducting Objects,”
IEEE Transactions on Antennas and Propagation
, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85124095158&origin=inward.