Plasma frequency selective surfaces

Summary form only given, as follows. Summary form only given. This research is focused on using plasma as a substitute for metal in a frequency selective surface (FSS). Frequency selective surfaces have been used for filtering electromagnetic waves. Our plasma frequency selective surfaces can be tuned to a desired filtering by varying the density or shape in the plasma elements. This could save much of the routine analysis involved in the standard analyses of conventional FSS structures. The user simply tunes the plasma to get the filtering desired. Plasma elements offer the possibility of improved shielding along with reconfigurability and stealth. Plasma FSS can be made transparent by turning the plasma off. This extends our previous scientific achievements in the development of the plasma antenna.