A conceptual study of stealth plasma antenna

Summary form only given. We are recently however involved in the conceptual study of stealth plasma antenna. Stealth plasma antenna achieves its cloaking property without depending on frequency shifting. It depends instead on the behavior of an electromagnetic wave propagating in the plasma medium. We have actually demonstrated that it is feasible to construct an antenna out of a glass tube filled with low-pressure gas, such as a fluorescent tube. When the gas is ionized, we have an efficient, highly directional receiving and transmitting antenna. When the gas de-ionizes, the structure reverts to a simple structure of a glass tube, with negligible radar cross-section, rendering it the stealth or cloaking property.