Iterative Solution of Field Problems with a Varying Physical Parameter

Anton G. TIJHUIS; Martijn C. Van BEURDEN

Article Details

Iterative Solution of Field Problems with a Varying Physical Parameter

Authors:

Anton G. TIJHUIS | Martijn C. Van BEURDEN

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2002 Vol.10 Issue 2, pp.163-184

Document Type:

Article

Publication Date:

1/2002

Document Language:

Turkish

Document ID (Org No.):

2000744315

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632

Abstract:

 

In this paper, linear field problems with a varying physical parameter are solved with the conjugate-gradient FFT method and a dedicated extrapolation   procedure for generating the initial estimate. The scheme is formulated and   illustrated for two simple example problems. The importance of the choice of   the stop criterion and the step size are demonstrated for the case of a   straight thin-wire segment. A brief summary is given of the applications   that have appeared in the open literature until now, and actual   three-dimensional scattering problems for a rectangular conducting plate and   an inhomogeneous, dispersive dielectric body are discussed. Finally, the   case where the medium surrounding the object of interest is no longer   homogeneous is addressed for two representative examples: wire antennas over   a layered half space and an inhomogeneous dielectric cylinder in a   water-filled container.

 

In this paper, linear field problems with a varying physical parameter are solved with the conjugate-gradient FFT method and a dedicated extrapolation   procedure for generating the initial estimate. The scheme is formulated and   illustrated for two simple example problems. The importance of the choice of   the stop criterion and the step size are demonstrated for the case of a   straight thin-wire segment. A brief summary is given of the applications   that have appeared in the open literature until now, and actual   three-dimensional scattering problems for a rectangular conducting plate and   an inhomogeneous, dispersive dielectric body are discussed. Finally, the   case where the medium surrounding the object of interest is no longer   homogeneous is addressed for two representative examples: wire antennas over   a layered half space and an inhomogeneous dielectric cylinder in a   water-filled container.

Article Details

Iterative Solution of Field Problems with a Varying Physical Parameter

Authors: Anton G. TIJHUIS | Martijn C. Van BEURDEN

Publisher: TUBITAK

Journal: Turkish Journal of Electrical Engineering and Computer Science 2002 Vol.10 Issue 2, pp.163-184

Document Type: Article

Publication Date: 1/2002

Document Language: Turkish

Document ID (Org No.): 2000744315

Frequency: Bimonthly

eISSN: 1303-6203

pISSN: 1300-0632

Issues

Authors:

Anton G. TIJHUIS | Martijn C. Van BEURDEN

Publisher:

TUBITAK

Journal:

Turkish Journal of Electrical Engineering and Computer Science 2002 Vol.10 Issue 2, pp.163-184

Document Type:

Article

Publication Date:

1/2002

Document Language:

Turkish

Document ID (Org No.):

2000744315

Frequency:

Bimonthly

eISSN:

1303-6203

pISSN:

1300-0632