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Unified Theory of C...
Unified Theory of Characteristic Modes : Part I: Fundamentals
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- Gustafsson, Mats (författare)
- Lund University,Lunds universitet,Teoretisk elektroteknik,Forskargrupper vid Lunds universitet,LTH profilområde: AI och digitalisering,LTH profilområden,Lunds Tekniska Högskola,Electromagnetic Theory,Lund University Research Groups,LTH Profile Area: AI and Digitalization,LTH Profile areas,Faculty of Engineering, LTH
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- Jelinek, Lukas (författare)
- Czech Technical University in Prague
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- Schab, Kurt (författare)
- Santa Clara University
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- Capek, Miloslav (författare)
- Czech Technical University in Prague
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(creator_code:org_t)
- 2022
- 2022
- Engelska 13 s.
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Ingår i: IEEE Transactions on Antennas and Propagation. - 0018-926X. ; , s. 11801-11813
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A unification of characteristic mode decomposition for all method-of-moment formulations of field integral equations describing free-space scattering is derived. The work is based on an algebraic link between impedance and transition matrices, the latter of which was used in early definitions of characteristic modes and is uniquely defined for all scattering scenarios. This also makes it possible to extend the known application domain of characteristic mode decomposition to any other frequency-domain solver capable of generating transition matrices, such as finite difference or finite element methods. The formulation of characteristic modes using a transition matrix allows for the decomposition of induced currents and scattered fields from arbitrarily shaped objects, providing high numerical dynamics and increased stability, removing the issue of spurious modes, and offering good control of convergence. This first part of a two-part paper introduces the entire theory, extensively discusses its properties and offers its basic numerical validation.
Ämnesord
- NATURVETENSKAP -- Matematik -- Beräkningsmatematik (hsv//swe)
- NATURAL SCIENCES -- Mathematics -- Computational Mathematics (hsv//eng)
Nyckelord
- Antenna theory
- characteristic modes
- computational electromagnetics
- Current density
- eigenvalues and eigenfunctions
- Finite element analysis
- Impedance
- Integral equations
- Matrix decomposition
- method of moments
- Method of moments
- scattering
- Scattering
- T-matrix method
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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