Abstract
The slow surface electromagnetic waves that propagate along the planar waveguide structure that contains two identical isotropic left-handed material with the vacuum (or air) gap has been considered. The possibility of propagation of slow surface electromagnetic waves of TM and TE polarizations in the frequency range at which the dielectric permittivity and magnetic permeability are negative are shown. By selecting a frequency, one, two or three modes can be excited simultaneously. The group and phase velocities of the TE polarization waves are directed in opposite directions. The frequency range of the existence of the TE mode with an antisymmetric field distribution lies above the frequency range of the existence of the TE mode with a symmetric field distribution. The TM wave, depending on the wavelength, can be either forward or backward, or have zero group velocity. The wave of TM-polarization has a slightly varying group velocity in a sufficiently wide frequency range. A rich set of different properties of these waves make them promising in applications.
Highlights
Розглянуто повільні поверхневі електромагнітні хвилі, які розповсюджуються уздовж планарной хвилеводної структури, що утворена двома ідентичними ізотропними лівосторонніми матеріалами з вакуумним зазором
TASK SETTINGS Let us consider the surface electromagnetic waves that propagate along the planar waveguide structure that contains two identical isotropic left-handed material with the vacuum gap of a thickness D
The left-handed material will be characterized by effective permittivity ε (ω ) and permeability μ (ω ) that depend on the wave frequency ω and commonly expressed with the help of experimentally obtained expressions [3]: ε
Summary
Розглянуто повільні поверхневі електромагнітні хвилі, які розповсюджуються уздовж планарной хвилеводної структури, що утворена двома ідентичними ізотропними лівосторонніми матеріалами з вакуумним (або повітряним) зазором. ПОВЕРХНОСТНЫЕ ЭЛЕКТРОМАГНИТНЫЕ ВОЛНЫ В ЩЕЛИ МЕЖДУ ДВУМЯ ЛЕВОСТОРОННИМИ МАТЕРИАЛАМИ В.К. Рассмотрены медленные поверхностные электромагнитные волны, которые распространяются вдоль планарной волноводной структуры, которая содержит два идентичных изотропных левых материала с вакуумным (или воздушным) зазором. Показана возможность распространения медленных поверхностных электромагнитных волн ТМ- и ТЕполяризаций в области частот, при которых диэлектрическая и магнитная проницаемости отрицательны.
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