Effect of ground plane absorption coefficient on the admittance of a slot antenna radiating into a warm lossy plasma

The effects of the ground plane electron absorption coefficient on the admittance of a half-wavelength slot antenna radiating into a warm lossy plasma are examined for a range of plasma conditions and slot widths. The ground plane absorption coefficient is observed to have significant effects on the admittance of a thin slot when the plasma is greatly overdense, even when the plasma is only mildly warm (
T_{e} \leq 1 eV
).