plasma frequency

plasma frequency

[′plaz·mə ‚frē·kwən·sē]
(plasma physics)
References in periodicals archive ?
Topics discussed include plasma antenna physics, fundamental theory, building a basic plasma antenna, nesting, stacking, arrays, reduction of cosite interference, plasma antenna windowing, plasma frequency selective surfaces, plasma antenna thermal noise, and more.
where the plasma frequency (in Gaussian units) is given by
If we assume that in plasma, the electrons are completely free and feel no force other than the F = eE, which is due to the electric field, then plasma frequency, is given by(3)
That is, the wave frequency [omega] is constant, while the plasma frequency [[omega].
The plasma frequency is basically a measure of the electron density N of the plasma.
The various plasma technologies to be evaluated will include plasma windowing to focus and reduce unwanted signals, plasma waveguides for improved and variable signal feeds, tunable plasma shields to protect systems, plasma frequency selective surfaces for variable filtering of signals and plasma phased arrays for signal steering.