A NOVEL BI-CHARACTERISTIC FDTD METHOD FOR WAVE PROPAGATION

Mehmet ÇİYDEM; S. Sencer KOÇ

Article Details

A NOVEL BI-CHARACTERISTIC FDTD METHOD FOR WAVE PROPAGATION

Authors:

Mehmet ÇİYDEM | S. Sencer KOÇ

Publisher:

İstanbul University-Cerrahpasa

Journal:

IU-Journal of Electrical & Electronics Engineering 2003 Vol.3 Issue 1, pp.813-818

Document Type:

Article

Publication Date:

1/2012

Document Language:

English

Document ID (Org No.):

2000779248

Frequency:

Bi-Annual

eISSN:

2619-9831

Abstract:

 

In this paper, the construction of time-dependent solution of electromagnetic fields in space-time by exploiting Taylor Series and Geometrical Optics' (GO) tools, i.e. wavefronts and rays, is introduced. Discontinuities in the fields and their successive time derivatives may only exist on the wavefronts and propagate along the rays. These discontinuities are transported via higher order transport equations. The proposed method is implemented by two different procedures on a sample problem of Hertzian dipole at origin in isotropic, homogeneous medium. In the first one, discontinuities themselves are transported directly by differential-type equations but in the latter by auxiliary vectors using both differential and integral type equations and conservation of energy is taken into account. Forward differences in time and central differences in space are applied. Simulation studies, when compared with analytical results, show that consistent and accurate results are obtained.

Article Details

A NOVEL BI-CHARACTERISTIC FDTD METHOD FOR WAVE PROPAGATION

Authors: Mehmet ÇİYDEM | S. Sencer KOÇ

Publisher: İstanbul University-Cerrahpasa

Journal: IU-Journal of Electrical & Electronics Engineering 2003 Vol.3 Issue 1, pp.813-818

Document Type: Article

Publication Date: 1/2012

Document Language: English

Document ID (Org No.): 2000779248

Frequency: Bi-Annual

eISSN: 2619-9831

Issues

Authors:

Mehmet ÇİYDEM | S. Sencer KOÇ

Publisher:

İstanbul University-Cerrahpasa

Journal:

IU-Journal of Electrical & Electronics Engineering 2003 Vol.3 Issue 1, pp.813-818

Document Type:

Article

Publication Date:

1/2012

Document Language:

English

Document ID (Org No.):

2000779248

Frequency:

Bi-Annual

eISSN:

2619-9831