Broadband Microwave Emitter on a Basis of Gas Discharge Plasma

Radiophysical characteristics of a radiator based on a gas discharge plasma

“…Experimental research of a loop radiator based on cold plasma of a gas discharge [3] has shown that the bandwidth properties of its radiation characteristics and input impedance considerably exceed those of antenna based on conductors of similar configuration.…”

“…We are interested in estimation of conductivity of a PR shaped as a pole of plasma by using experimental values of input impedances PR obtained in [3] according to the following technique: 1) Excite, in the frequency band 150-350 Mttz. the studied volume (configuration) of plasma and measure the set of values of the input impedance Zpl (f) of the radiator in this range, 2) Solve, in accurate formulation, the problem about the distribution of current and find the input impedance Zcl(.f, cy) of PR with finite and varying values of conductivity o7, 3) Solve the problem of optimization of o7 variation by using the criterium of a minimum of objective function Z(cy) in the given frequency band: In accordance to the above mentioned techniques, we solved the problem of optimization, where the following functions were chosen as the objective ones: The results of calculations are presented as plots in Fig.…”