Electromagnetic interaction in metallic and plasma antenna arrays
DOI:
https://doi.org/10.1109/ICATT.2015.7136815Keywords:
metallic and plasma antenna arrays, relative permittivity of cold plasma, conductivity of cold plasma, intrinsic and transfer antenna impedance, SWRAbstract
Results of the analysis of intrinsic and transfer impedance, as well as its SWR of antennas included into metal and plasma arrays are presented. It is found out that mutual electromagnetic interaction between antennas of plasma array is weaker than that in metallic arrays. This allows simplifying technology of matching the plasma array with microwave transmitter or receiver, and reducing the antenna spacing to make plasma antenna arrays more compact and weigh less. It is noted that weak interaction between plasma antennas within arrays or between plasma antennas and other metallic antennas placed nearby, for example on space, air or land mobile objects, enables to improve electromagnetic compatibility of electronic systems at such objects.References
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