Plasma antenna VSWR and co-site and parasitic interference reduction or elimination

Plasma antennas use partially or fully ionized gas as a conductor instead of metal. Plasma antennas can perform as metal antennas do but with reconfiguration, lower thermal noise at the higher frequencies, and lower side lobes in some experiments. At the higher frequencies, plasma antennas have lower thermal noise than metal antennas and the thermal noise of plasma antennas decreases with the operating frequency of the plasma antenna making them ideal for satellite antennas Plasma reflector antennas, plasma FM/AM radio antennas, various plasma transmitting antennas, high power plasma antennas, plasma frequency selective surfaces, plasma waveguides, plasma co-axial cables, and smart plasma antennas have been built. Alexeff and Anderson and [1]-[2] Anderson and Alexeff [3] have done theory, experiments, and have built prototype plasma antennas. Anderson [4] wrote a comprehensive book on plasma antennas. S. Sakai [5] et al have shown that a plasma antenna is a type of metamaterial.