Durchgang von Mikrowellen durch ebene Plasmaschichten

1962 ◽  
Vol 17 (1) ◽  
pp. 59-64
Author(s):  
K. Hain ◽  
M. Tutter

The reflection and transmission of a plane electromagnetic wave propagating through a plane plasma slab with and without a static magnetic field is computed.

1961 ◽  
Vol 39 (9) ◽  
pp. 1273-1290 ◽  
Author(s):  
I. P. French ◽  
G. G. Cloutier ◽  
M. P. Bachynski

Using a generalized formulation of Kirchhoff's law it is possible to relate the equilibrium electromagnetic radiation spectrum of a body to its absorptivity spectrum. The microwave absorptivity of a uniform anisotropic plasma slab to a normally incident electromagnetic wave is obtained by matching fields at the boundaries and is solved completely for the model chosen.The absorptivity spectrum of the plasma slab is computed for waves propagating parallel to and normal to an applied static magnetic field for various electron densities, electron collision frequencies, and slab thicknesses. Peaks in the absorptivity spectrum occur around the edges of the "stop-bands". In general, the absorptivity increases with slab thickness and collision frequency. The effect of internal reflections is included and gives rise to undulations in the absorptivity spectrum.


2012 ◽  
Vol 1 (2) ◽  
pp. 16
Author(s):  
G. Kraftmakher ◽  
V. Butylkin

Here we present metastructures containing cut-wire grating and a single longitudinal cut-wire orthogonal to grating’s wires. Experimental investigations at microwaves show these structures can provide strong magnetic resonant response of a single nonmagnetic cut-wire in dependence on configuration and sizes in the case when metastructures are oriented along the direction of wave propagation and cut-wires of grating are parallel to the electric field of a plane electromagnetic wave. It is suggested a concept of magnetic response based on antiparallel resonant currents excited by magnetic field of surface polaritons in many spatial LC-circuits created from cut-wire pairs of a grating and section of longitudinal cut-wire. Three separately observed resonant effects connected with grating, LC-circuits and with longitudinal cut-wire have been identified applying measurements in waveguides, cutoff waveguides and free space. To tune and mark resonance split cut-wires are loaded with varactor diodes.


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