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Various methods for efficiently solving electromagnetic problems are presented. Electromagnetic scattering problems can be roughly classified into surface and volume problems, while fast methods areâ€¦ (More)

Analysis of Volume Integral Equation Formulations for Scattering by High-Contrast Penetrable Objects

- Johannes Markkanen, C. Lu, Xiande Cao, Pasi Yla-Oijala
- IEEE Transactions on Antennas and Propagation
- 2012

The volume integral equation method is applied in electromagnetic scattering from arbitrarily shaped three-dimensional inhomogeneous objects. The properties of the volume electric and magnetic fieldâ€¦ (More)

- C. Lu, Pasi Yla-Oijala, Matti Taskinen, Jukka Sarvas
- 2009 IEEE Antennas and Propagation Societyâ€¦
- 2009

This paper presented two formulations of the electric field volume integral equation, and discussed the use of two different types of volume basis functions in the representation of the volumeâ€¦ (More)

- C. Lu
- IEEE Antennas and Propagation Societyâ€¦
- 2001

A fast algorithm based on the volume integral equation is described for the analysis of antenna-radome interaction problems. The algorithm is implemented for both tetrahedron and hexahedron meshes,â€¦ (More)

- C. Lu, Weng Cho Chew
- 1995

A three dimensional (3D) version of the nested equivalent principle algorithm (NEPAL) is presented. In 3D, spherical wave functions are used to represent the scattered eld of the subscatterers.â€¦ (More)

- C. Lu
- IEEE Antennas and Propagation Societyâ€¦
- 2001

This paper discusses the formulation and the discretization of the volume-surface integral equation (VSIE), the implementation of multilevel fast multiple algorithm (MLFMA) to speed up the iterationâ€¦ (More)

- Morui Li, C. Lu, Zhiyong Zeng
- 2006 IEEE Antennas and Propagation Societyâ€¦
- 2006

In this paper, a preconditioner in the implementation of the hybrid volume and surface integral equations (VSIE) with MLFMA solver is described. The algorithm is applied to the calculation ofâ€¦ (More)

- Chun Li Yu, C. Lu
- IEEE Antennas and Propagation Societyâ€¦
- 2003

The hybrid volume-surface integral equation (VSIE) approach has been applied to investigate the curved FSS with the dielectric substrates of finite extent. The scattering RCS of a curved structureâ€¦ (More)

In the calculation of the radiation patterns of antennas installed on complex structures using iterative solvers, the convergence rate is often slower compared to the problem with the structure aloneâ€¦ (More)

- Xiande Cao, C. Lu
- 2010 IEEE Antennas and Propagation Societyâ€¦
- 2010

The Volume-Surface Integral Equation (VSIE) has been successfully used in computational electromagnetics for complicated structures, especially for coated objects. Since the VSIE only requires a meshâ€¦ (More)