plasma sheath

plasma sheath

[′plaz·mə ‚shēth]
(electronics)
An envelope of ionized gas that surrounds a spacecraft or other body moving through an atmosphere at hypersonic velocities; affects transmission, reception, and diffraction of radio waves.
References in periodicals archive ?
The hybrid technology uses physical vapor deposition and plasma-enhanced chemical vapor deposition to crack the gases inside a plasma sheath and apply their molecules to attach to the mold.
Radially-dependent plasma and collision frequency chosen here are similar to the laboratory argon plasma parameters [2] and reentry plasma sheath [1].
Li, "Characteristic of plasma sheath channel and its effect on communication," Progress In Electromagnetics Research, Vol.
Analysis of electromagnetic wave propagation in a magnetized re-entry plasma sheath via the Kinetic equation," NASA/TM-2009-21096, National Aeronautics and Space Administration, Manning Glenn Research Center, Cleveland, Ohio, 2009.
A plasma sheath is formed around the aircraft in the re-entry into the Earth's atmosphere.
Wang, "Simulation of electromagnetic wave propagation through plasma sheath using the moving-window finite-difference time-domain method," IEEE Transactions on Plasma Science, Vol.
This model includes a complete treatment of the time-dependent ion kinetics in the plasma sheath, the thin region between the plasma and the substrate surface.
While space probes have yet to penetrate beyond the plasma sheath of the solar system, the heliosphere, considerable evidence points to the heliosphere's existence as a teardrop-shaped plasma body similar to Earth's magnetosphere.
A strong electric field, or bias voltage, develops in the plasma sheath layer, accelerating the metal ions in a vector perpendicular to the substrate.
Plasma technology is a kind of technology with novel concept and newly working principle, and its latent application in electromagnetic (EM) field is splendid, such as plasma stealth technology [1-3], plasma antennas [4-6], plasma diagnostic [7,8], plasma photonic crystals [9] and communications through plasma sheath [10-14].
The new hardware targets the shape of the plasma sheath, the electron energy and other key parameters to improve performance.
Vehicles traveling at hypersonic speed experience degradation of radio communications including telemetry and GPS navigation, because of effects from plasma sheath caused by the free electrons in the gas, including signal attenuation, phase shift, noise, etc.