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Antenna system for a ground station communicating with the NTNU Test Satellite (NUTS)
Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, Department of Electronics and Telecommunications.
2011 (English)MasteroppgaveStudent thesis
Abstract [en]

This thesis describes the design process of a helical antenna for the ground station at NTNU. The helical antenna is designed for the proposed telemetry link at 437 MHz. The main focus areas have been to be able to make the helical antenna small enough to be safely mounted on the roof of the building belonging to the Department of Electronics and Telecommunication, while at the same time having a big enough helical antenna to achieve the required gain, which is 16 dB. An earlier link budget has been revisited and the requirements has been adjusted accordingly. The theory section provides the equations that the design is based on. In the design and simulation section, articles from the Institute of Electrical and Electronics Engineers (IEEE) have been useful to see if the calculated design with wanted characteristics is achievable. The simulation process gives an understanding of what happens with the electromagnetic field and the gain when different physical dimensions are changed. A scale model has been constructed and measurements have been done in the anechoic chamber. The measurements shows an agreement with the simulations. The evaluation shows that it is sufficient with two antennas in an array, instead of four which has been previously proposed.

Place, publisher, year, edition, pages
Institutt for elektronikk og telekommunikasjon , 2011. , 100 p.
Keyword [no]
ntnudaim:6371, MTEL elektronikk, Romteknologi og navigasjon
URN: urn:nbn:no:ntnu:diva-14711Local ID: ntnudaim:6371OAI: diva2:460141
Available from: 2011-11-29 Created: 2011-11-29

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