Echo attenuation characteristics of a vehicle covered with the inhomogeneous plasma sheath in terahertz band

Calculations are presented on the phenomenon of plasma–sheath resonance in an inhomogeneous plasma. In certain cases, this resonance coincides with a local resonance occurring in the plasma, the local plasma frequency being equal to the resonant frequency of the entire system. The theory does not describe the mechanism of absorption, but does predict the magnitude of the power involved. Some limitations of the theory are discussed.

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The Influence of Dusty Size Distribution Model on Propagation of Electromagnetic Waves in Inhomogeneous Plasma Sheath

Journal of Physics Conference Series ◽

10.1088/1742-6596/1995/1/012014 ◽

2021 ◽

Vol 1995 (1) ◽

pp. 012014

Author(s):

Jie Zhang ◽

Guodong Zhang ◽

Shanchao Zhao ◽

Bing Han

Keyword(s):

Size Distribution ◽

Electromagnetic Waves ◽

Inhomogeneous Plasma ◽

Plasma Sheath ◽

Distribution Model

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A comparative study on the propagation characteristics of electromagnetic waves in inhomogeneous plasma sheath

Optik ◽

10.1016/j.ijleo.2017.09.117 ◽

2018 ◽

Vol 155 ◽

pp. 390-398 ◽

Cited By ~ 4

Author(s):

Chen Cong ◽

Chen Yun-yun ◽

Cui Fen-ping

Keyword(s):

Comparative Study ◽

Electromagnetic Waves ◽

Inhomogeneous Plasma ◽

Plasma Sheath ◽

Propagation Characteristics

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RADIATION FROM AN AXIALLY SLOTTED CYLINDER WITH A RADIALLY INHOMOGENEOUS PLASMA COATING

Canadian Journal of Physics ◽

10.1139/p64-003 ◽

1964 ◽

Vol 42 (1) ◽

pp. 26-42 ◽

Cited By ~ 5

Author(s):

W. V. T. Rusch

Keyword(s):

Inhomogeneous Plasma ◽

Relative Dielectric Constant ◽

Plasma Sheath ◽

Plasma Resonance ◽

Radial Dependence ◽

Radiation Patterns ◽

Diffusion Type ◽

Radial Wave ◽

Type Process ◽

Radially Inhomogeneous

Radiation patterns have been computed for an axial slot on an infinite circular cylinder coated with a radially inhomogeneous plasma sheath. The relative dielectric constant was assumed to have three types of radial dependence: monotonic with a minimum at the inner edge of the sheath but with no portion of the sheath below plasma resonance; monotonic with the inner portion of the sheath below plasma resonance; parabolic with a minimum within the sheath and the inner portion of the sheath below resonance. The radial wave functions within the sheath are obtained in the form of infinite series. The resulting radiation patterns are found to be sharply directed in the forward direction relative to the equivalent free-space pattern. These sharply forward-directed patterns are consistent with the interpretation of a "diffusion-type" process within layers of the sheath below cutoff and a predominantly "refraction-type" process within layers above cutoff.

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