By using the electromagnetic wave reflection characteristics of the plasma, the plasma can be used to design the reflector antenna. A metal parabolic cylindrical antenna and a plasma luminescence parabolic cylindrical antenna are designed. The computer simulation technology (CST) software is used to calculate the radiation characteristics and the key parameters influencing on plasma luminescence parabolic cylindrical antenna radiation and scatter characteristics are analyzed. The simulation results show that selecting appropriate plasma column spacing, plasma frequency and collision frequency, the plasma luminescence parabolic cylindrical antenna has the same radiation characteristic as metal parabolic antenna, at the same time, the radar cross-section (RCS) of plasma antenna in operation and without operation are all smaller than that of the metal antenna, especially in plasma without operation, the bistatic RCS reduces to a greater extent than that of the previous related literature design.