Simulation Sudy of the Charectristics of Metal Helix Antenna and Plasma Helix Antenna

Shen Shou Max Chung^1*, Shih-Chung Tuan²

¹Department of Electrical Engineering, National Penghu University of Science and Technology, Magong City, Taiwan
²Department of Communication Engineering, Asia Eastern University of Science and Technology, New Taipei City, Taiwan

* Presenter:Shen Shou Max Chung, email:maxchung@so-net.net.tw

Helix antenna is frequently used in satellite communication, as well as other communications that require circular polarization, robust and good navigational performance. However, as any other metal antenna, its properties are not adjustable once made. Here we conduct a simulation study on a plasma helix antenna. We replace the PEC with plasma of different densities, and the characteristics change significantly. On the surface, plasma helix seems inferior to metal helix, but that is based on the same operation frequency, which is not suitable. Once plasma is adopted, the operation frequency should also change.

Keywords: helix antenna, plasma antenna, tunable antenna