FDTD Simulation of DC Plasma Antenna

Abstract

Plasma antenna relies on the conductivity of the plasma to convey microwave signals, however, designs vary between plasma antennas, and the best way to explore them is through simulation. In this article we simulate the properties of a 60 cm long DC plasma antenna containing in a 12 mm Pyrex glass tube using a commercial FDTD code. The Smith chart, coupling impedance, and the gain pattern are shown. We think DC plasma possess certain advantages over an AC generated plasma antenna like a more stable plasma column and easily adjustable plasma density.