Author： Shiao C.M. Peng S.T.
Publisher： Taylor & Francis Ltd
ISSN： 1569-3937
Source： Journal of Electromagnetic Waves and Applications, Vol.12, Iss.6, 1998-01, pp. : 789-800
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Abstract
We present here a systematic investigation of dielectric waveguide loaded with a metal-strip grating which is realistically characterized by a complex dielectric constant with a negative imaginary part to account for the finite conductivity of the metal strips. The method of mode matching is employed to solve such a boundary-value problem, and the effects of the structure parameters on the dispersion characteristics are critically examined, with a particular attention directed toward the attenuation constant due to the Bragg reflection, radiation and absorption of the grating waveguide.
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