New Results in Impedance Probe Applications and Antenna Coupling in the NRL Space Physics Simulation Chamber

We will present recent progress in plasma impedance probe experiments and antenna coupling calculations at NRL's Space Physics Simulation Chamber. The experiments are performed under a variety of conditions with magnetized and unmagnetized collisionless, cold plasmas in density ranges of $10^5-10^{10} cm^{-3}$. A range of low frequency measurements less than the ion plasma frequency will be compared with revised impedance probe models. Additionally, we will present new computational results on antenna coupling in a magnetized plasma.