On the effect of sheath, collision, and absorptive surface on the performance of a linear antenna in a compressible plasma

The boundary value problem posed by a linear antenna with sheath or absorptive surface in a compressible lossy plasma is formulated in terms of coupled integral equations. The integral equations are solved with the aid of a digital computer. The results presented here include the effects of sheath, collision, and absorptive surfaces on the current distribution, resonance, and antiresonances of the antenna. The analysis is most conveniently applied in studying an electrically short antenna which is of the order of several electroacoustic wavelengths long.