Reflection Properties of Electromagnetic Wave in a Bounded Plasma Slab

A bounded plasma stealth model is proposed in this paper. The method of impedance transformation with multiple dielectrics is used to study the propagation properties of electromagnetic (EM) waves in this plasma slab. The relations between the plasma parameters and the reflection which is a combination of the power reflected from the wall-plasma interface, the partial reflections from the bulk plasma, and the collisionally attenuated waves reflected by the conductive plane are derived. In addition, the reflections of the incident wave power dependence on the thickness of plasma are presented for different incident wave frequencies and various plasma parameters. The numerical calculation results show that, due to the presence of the walls, the mechanism of EM-wave attenuation is a combination of the collisional absorption and cavity resonance effects. It is demonstrated that detailed numerical analyses are useful in practical applications pertaining to the control of the reflection of EM waves through a uniform plasma slab covering the conductive plane.