𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Preliminary study of AWE method for FEM analysis of scattering problems

✍ Scribed by Jing-Ping Zhang; Jian-Ming Jin

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
215 KB
Volume
17
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

The method of asymptotic wa¨eform e¨aluation AWE is applied to the finite-element analysis of electromagnetic scattering problems. The finite-element mesh is terminated using a perfectly matched ( ) ( ) layer PML , an absorbing boundary condition ABC , or their combina-( ) tion. It is shown that the finite-element method FEM in conjunction ( ) with AWE can predict the radar cross section RCS o¨er a frequency band whose bandwidth is highly dependent on the size of the scatterer. For a gi¨en order of AWE, the bandwidth decreases when the size of the scatterer increases. A simple binary search algorithm is described to apply AWE at multiple frequency points to generate an accurate solution o¨er a specified frequency band. Numerical examples are gi¨en to demonstrate the performance of AWE in the RCS calculation by the FEM. ᮊ 1998

📜 SIMILAR VOLUMES

The hybrid FEM–MOL approach for the anal
The hybrid FEM–MOL approach for the analysis of scattering problems
✍ Ying Xiao; Yilong Lu 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB 👁 1 views

## Abstract In this Letter a hybrid approach combining the finite‐element method and the method of lines is presented for solving the scattering problems of irregular geometry and inhomogeneity. In this approach, the FEM is used to treat the region with complicated geometry and inhomogeneous materi

Erratum to “The hybrid FEM-MoL approach
Erratum to “The hybrid FEM-MoL approach for the analysis of scattering problems”
✍ Ying Xiao; Yilong Lu 📂 Article 📅 2002 🏛 John Wiley and Sons 🌐 English ⚖ 47 KB 👁 1 views

## Abstract The addresss for Ying Xiao in the above article was incomplete. The entire address appears below. We apologize for the omission. Institute of High Performance Computing, 1 Science Park Road, #01‐01 The Capricorn, Singapore Science Park 2, Singapore 117528

Fully coupled hybrid-method FEM/high-fre
Fully coupled hybrid-method FEM/high-frequency technique for the analysis of 3D scattering and radiation problems
✍ Ignacio Gómez-Revuelto; Luis E. García-Castillo; Magdalena Salazar-Palma; T. K. 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 177 KB 👁 1 views

A novel hybrid finite-element method (FEM) and highfrequency technique (HFT) for the efficient analysis of scattering and radiation problems is presented. The proposed hybrid method makes use of an iterative FEM for open-region problems that allows easy hybridization with other numerical techniques.

The SSOR-preconditioned inner outer flex
The SSOR-preconditioned inner outer flexible GMRES method for the FEM analysis of EM problems
✍ X. W. Ping; R. S. Chen; K. F. Tsang; Edward K.N. Yung 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 398 KB 👁 1 views

## Abstract When solving electromagnetic problems by finite element method, the resulting linear systems are ill‐conditioned when the PML absorbing layers are adopted. Traditional Krylov iterative algorithms usually converge slowly or may even stagnate. In this paper, the combination of the inner–o

Comparison study of the PSTD and FDTD me
Comparison study of the PSTD and FDTD methods for scattering analysis
✍ Qingliang Li; Yinchao Chen; Debiao Ge 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 765 KB

A new design of a dual-frequency printed slot antenna loaded by an open-ring conducting strip and capaciti¨ely fed by a ( ) coplanar wa¨eguide CPW is demonstrated. Owing to the loaded conducting strip, the proposed antenna is separated into two slot regions, and can be considered to consist of two s

Topological FEM method for the analysis
Topological FEM method for the analysis of time-varying structures
✍ Zhiyuan, Cao ;Gang, Liang ;Shougao, Tang 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 115 KB 👁 1 views

## Abstract A topological FEM method, in which a structure topological theory is applied to a FEM system, is presented in this paper. The method uses FEM solutions of a structure before any change to obtain the new response of changed structure, avoids re‐calculations from changing the FEM system,