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ISSN Печать: 0040-2508
ISSN Онлайн: 1943-6009
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INTERACTION OF ELECTROMAGNETIC SIGNALS WITH AN ANTENNA MADE OF A GAS-DISCHARGE PLASMA
Краткое описание
The interaction of electromagnetic signals with plasma antenna is an important problem of radiophysics and electronics, as they are used in various branches of radio engineering, including the armed services. Despite a considerable number of publications on plasma antennas, currently the problem of mercury vapor influence on their electromagnetic characteristics is not solved. A method is proposed for calculating the conductivity of the cold plasma filled with mercury vapors. The characteristics of plasma antennas with mercury vapors and without them in the two frequency ranges in the FEKO software are calculated. The effect of mercury vapors on the parameters of plasma antennas is analyzed. The calculations have shown that the introduction of mercury vapors into the plasma antenna leads to a significant reduction in its efficiency and to a change in VSWR characteristics, especially with frequency electromagnetic signal increasing. For improvement of parameters, in particular, the efficiency of the antennas under consideration, the recommendations on decreasing the amount of mercury in them are given. The antennas made of gas-discharge plasma can be mounted on aerospace vehicles.