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Broadband and Multi-Scale Electromagnetic Solver Using Potential-Based Formulations with Discrete Exterior Calculus and Its Applications
Broadband and Multi-Scale Electromagnetic Solver Using Potential-Based Formulations with Discrete Exterior Calculus and Its Applications
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153131
- ISBN
- 9798346830795
- DDC
- 620
- 저자명
- Zhang, Boyuan.
- 서명/저자
- Broadband and Multi-Scale Electromagnetic Solver Using Potential-Based Formulations with Discrete Exterior Calculus and Its Applications
- 발행사항
- [Sl] : Purdue University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 117 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-06, Section: B.
- 주기사항
- Advisor: Chew, Weng Cho.
- 학위논문주기
- Thesis (Ph.D.)--Purdue University, 2024.
- 초록/해제
- 요약A novel computational electromagnetic (CEM) solver using potential-based formulations and discrete exterior calculus (DEC) is proposed. The proposed solver consists of two parts: the DEC A-Φsolver and the DEC F-Ψsolver. A and Φ are the magnetic vector potential and electric scalar potential of the electromagnetic (EM) field, respectively; F and Ψ are the electric vector potential and magnetic scalar potential, respectively. The two solvers are dual to each other, and most research is carried out with respect to the DEC A-Φsolver.Systematical approach for constructing the DEC A-Φmatrix equations is provided in this thesis, including the construction of incidence matrices, Hodge star operators and different boundary conditions. The DEC A-Φsolver is proved to be broadband stable from DC to optics, while classical CEM solvers suffer from stability issues at low frequencies (also known as the low-frequency breakdown). The proposed solver is ideal for broadband and multi-scale analysis, which is of great importance in modern industryTo empower the proposed solver with the ability to solve industry problems with large number of unknowns, iterative solvers are preferred. The error-minimization mechanism buried in iterative solvers allows user to control the effect of numerical error accumulation to the solution vector. Proper preconditioners are almost always needed to accelerate the convergence of iterative solvers in large scale problems. In this thesis, preconditioning schemes for the proposed solver are studied.In the DEC A-Φsolver, current sources can be applied easily, but it is difficult to implement voltage sources. To incorporate voltage sources in the potential-based solver, the DEC F-Ψsolver is proposed. The DEC A-Φand F-Ψsolvers are dual formulations to each other, and the construction of the F-Ψsolver can be generalized from the A-Φsolver straightforward.
- 일반주제명
- Silicon
- 일반주제명
- Sparsity
- 일반주제명
- Radio communications
- 일반주제명
- Calculus
- 일반주제명
- Construction
- 일반주제명
- Magnetic fields
- 일반주제명
- Electric fields
- 일반주제명
- Antennas
- 일반주제명
- Boundary conditions
- 일반주제명
- Dissection
- 일반주제명
- Geometry
- 일반주제명
- Electrical engineering
- 기타저자
- Purdue University.
- 기본자료저록
- Dissertations Abstracts International. 86-06B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008250123s2024 us c eng d■001000017165165
■00520250211153131
■006m o d
■007cr#unu||||||||
■020 ▼a9798346830795
■035 ▼a(MiAaPQ)AAI31786095
■035 ▼a(MiAaPQ)Purdue25695138
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aZhang, Boyuan.
■24510▼aBroadband and Multi-Scale Electromagnetic Solver Using Potential-Based Formulations with Discrete Exterior Calculus and Its Applications
■260 ▼a[Sl]▼bPurdue University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a117 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-06, Section: B.
■500 ▼aAdvisor: Chew, Weng Cho.
■5021 ▼aThesis (Ph.D.)--Purdue University, 2024.
■520 ▼aA novel computational electromagnetic (CEM) solver using potential-based formulations and discrete exterior calculus (DEC) is proposed. The proposed solver consists of two parts: the DEC A-Φsolver and the DEC F-Ψsolver. A and Φ are the magnetic vector potential and electric scalar potential of the electromagnetic (EM) field, respectively; F and Ψ are the electric vector potential and magnetic scalar potential, respectively. The two solvers are dual to each other, and most research is carried out with respect to the DEC A-Φsolver.Systematical approach for constructing the DEC A-Φmatrix equations is provided in this thesis, including the construction of incidence matrices, Hodge star operators and different boundary conditions. The DEC A-Φsolver is proved to be broadband stable from DC to optics, while classical CEM solvers suffer from stability issues at low frequencies (also known as the low-frequency breakdown). The proposed solver is ideal for broadband and multi-scale analysis, which is of great importance in modern industryTo empower the proposed solver with the ability to solve industry problems with large number of unknowns, iterative solvers are preferred. The error-minimization mechanism buried in iterative solvers allows user to control the effect of numerical error accumulation to the solution vector. Proper preconditioners are almost always needed to accelerate the convergence of iterative solvers in large scale problems. In this thesis, preconditioning schemes for the proposed solver are studied.In the DEC A-Φsolver, current sources can be applied easily, but it is difficult to implement voltage sources. To incorporate voltage sources in the potential-based solver, the DEC F-Ψsolver is proposed. The DEC A-Φand F-Ψsolvers are dual formulations to each other, and the construction of the F-Ψsolver can be generalized from the A-Φsolver straightforward.
■590 ▼aSchool code: 0183.
■650 4▼aSilicon
■650 4▼aSparsity
■650 4▼aRadio communications
■650 4▼aCalculus
■650 4▼aConstruction
■650 4▼aPartial differential equations
■650 4▼aMagnetic fields
■650 4▼aElectric fields
■650 4▼aAntennas
■650 4▼aBoundary conditions
■650 4▼aDissection
■650 4▼aGeometry
■650 4▼aElectrical engineering
■690 ▼a0544
■71020▼aPurdue University.
■7730 ▼tDissertations Abstracts International▼g86-06B.
■790 ▼a0183
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17165165▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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