VHF Antenna Modeling for Rocket Application
César De La Jara and Ronald Woodman
Radio Observatorio de Jicamarca, Instituto Geofísico del Perú
During August and September of 2004, NASA conducted a sounding rocket campaign, called EQUIS II, in the South Pacific to study disturbances in the ionosphere created by interactions between the Sun and the Earth’s magnetic field. Our experiment involved the transmission of a 37.866 MHZ continuous wave during the flight of six of these rockets. The transmitters were mounted on the rockets and the antennas attached to its surface. The reduced space available on this surface and the fact that the antennas would be exposed to strong aerodynamic loading imposed serious limitations in the design of the antennas. In this paper the design and results of the analysis of the VHF antennas are presented. FEKO was used to perform the simulation and help to obtain the best performance of these narrow band antennas.
24th Annual Review of Progress in Applied Computational Electromagnetics
2008
April
376-379
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