The Concept of an Airborne VLF Transmitter with Vertical Electric Dipole Antenna

This paper presents the idea of a Very Low Frequency facility based on an airborne, mobile transmitter equipped with a symmetric-dipole antenna. The antenna, to be flown under an aerostat to high altitudes (between 12 and 60 km), is to present, in comparison to ground facilities, less financial issues and modified field intensity. The antenna concept was proven during three experiments flown in 2014 and 2015, with the longest aerial having the length of 200 m. The prototype transmitter is planned to be launched in 2019.