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Caloz, C. and Itoh, T., “Electromagnetic Metamaterials Transmission Line Theory and Microwave Applications,” IEEE Press and Wiley, New York, 2005.

has been cited by the following article:

Article

Attenuation in Left-handed Waveguide Structure by Equivalent Current Theory Method

1Physics Department, Al Azhar University, Gaza Strip, Palestinian Authority

2Physics Department, Islamic University, Gaza Strip, Palestinian Authority


Applied Mathematics and Physics. 2015, Vol. 3 No. 1, 1-5
DOI: 10.12691/amp-3-1-1
Copyright © 2015 Science and Education Publishing

Cite this paper:
Hana M. Mousa, Mohammed M. Shabat. Attenuation in Left-handed Waveguide Structure by Equivalent Current Theory Method. Applied Mathematics and Physics. 2015; 3(1):1-5. doi: 10.12691/amp-3-1-1.

Correspondence to: Hana  M. Mousa, Physics Department, Al Azhar University, Gaza Strip, Palestinian Authority. Email: H.mousa @ alazhar.edu.ps

Abstract

In this work, the propagation and attenuation characteristics of both TE and TM waves in a waveguide structure consisting of left handed material (LHM) film by using the equivalent current theory of optical waveguide coupling method have been derived and obtained. The dispersion relations and the attenuation coefficient were numerically solved for a given set of parameters: allowed phase angles; core’s thicknesses; and propagation constants. We found that lower attenuation is realized for higher propagation constants. Moreover, attenuation coefficient has same small positive values for all thickness in phase angles range of values (00-570). Besides that, the attenuation decreases to negative values with thickness increase in phase angles range of values (570-590) which means a gain of the wave is achieved for wider buffer layer and at larger phase angles. We also found that, TE waves have lower attenuation than that of TM waves.

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