Pattern Synthesis Estimation for Plasma Antenna Arrays Consider Mutual Coupling Effect

摘要

The plasma antenna has attracted abroad attentions in civil and military mobile communication. The radiated wave is influenced by ionized gas status in plasma medium which is different with the traditional metallic antenna. The traditional metallic antenna is effected by the free electrons. In this paper, based on the surface current distribution model, the radiation pattern of the antenna is calculated. And this paper proposes a pattern synthesis estimation technique for plasma antenna arrays consider the mutual coupling effect. A receiving signal process modeling is obtained accurately via building the array system electromagnetic transient space-time model, and the mutual coupling effect is compensated automatically in the proposed model too. The computer simulation proved the proposed method which combines the benefits of subspace methods and the spatially smoothed versions have exhibited the good performance against the mutual signals.