Dielectric Waveguide for Composite Materials

Nabeil I. Fawaz

Article Details

Dielectric Waveguide for Composite Materials

Authors:

Nabeil I. Fawaz

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.9 Issue 14, pp.39-46

Document Type:

Article

Publication Date:

1/2011

Document Language:

English

Document ID (Org No.):

2001368669

pISSN:

2664-5548

Keywords:

Abstract:

 The Maxwell equations have been formulated for a composite slab waveguide at x-band wave propagation. The eigenvalues of the system equations are obtained by using MATLAB program. These eigenvalues are used to obtain the wave propagation constant and a number of modes inside the slabs. A good correspondence was seen between the number of modes and the cut off thickness. The parameter that affects the performance of waveguide is the slab thickness. The propagation constant is usually adopted to characterize this type of waveguide and show how the cutoff frequency of the mode in the slab is increased dramatically by decreasing the frequency.Our study focused on lower modes, the results for the transmission coefficient are then used to study the propagation properties of the guided modes in waveguides. Characteristic equations, solutions for TE (transverse electric) modes are presented. Numerical results for the propagation constant and field distributions of several lower-order modes are presented.By finding the exact transmission coefficient of lower mode of a plane wave incident at a normal incidence on composite slabs, the propagation properties of guided modes in planar slab were studied.It is important to find suitable materials for the transmitting and receiving of microwave frequencies and useful for designing a waveguide filter to separate waves of the same frequency but with different transmission modes.

Article Details

Dielectric Waveguide for Composite Materials

Authors:

Nabeil I. Fawaz

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.9 Issue 14, pp.39-46

Document Type:

Article

Publication Date:

1/2011

Document Language:

English

Document ID (Org No.):

2001368669

pISSN:

2664-5548

wave guide

rectangular waveguide transition line

cut off frequency

Issues

Article Details

Dielectric Waveguide for Composite Materials

Authors: Nabeil I. Fawaz

Publisher: University of Baghdad

Journal: Iraqi Journal of Physics Vol.9 Issue 14, pp.39-46

Document Type: Article

Publication Date: 1/2011

Document Language: English

Document ID (Org No.): 2001368669

pISSN: 2664-5548

wave guide

rectangular waveguide transition line

cut off frequency

Issues

Authors:

Nabeil I. Fawaz

Publisher:

University of Baghdad

Journal:

Iraqi Journal of Physics Vol.9 Issue 14, pp.39-46

Document Type:

Article

Publication Date:

1/2011

Document Language:

English

Document ID (Org No.):

2001368669

pISSN:

2664-5548