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Design of an Astronomy Front End for Orbiting Low Frequency Antennas for Radio Astronomy

Grootjans, R. (2016) Design of an Astronomy Front End for Orbiting Low Frequency Antennas for Radio Astronomy.

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Abstract:The Orbiting Low Frequency Antennas for Radio Astronomy satellite cluster initiative was started to explore a new area of low-frequency radio astronomy. Due to the partial or complete opaqueness of the atmosphere for frequencies below 30 MHz, this initiative plans to form a swarm of antenna nodes in space. These nodes will also experience less radio frequency interference than they would on Earth. This thesis explores the steps needed to make a viable front end within the tight boundaries of a 3U cubesat. Existing antennas are modeled and examined. This is followed by system calculations to specify the astronomical front-end for an OLFAR node concretely. Once the specifications are known, a wideband amplifier topology is presented and simulated. Finally, the design is proven to be suitable for OLFAR and is ready for realisation. A viable front end is presented and simulated, and it can be concluded that this front end mostly meets the specifications.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:39 astronomy, 50 technical science in general, 53 electrotechnology
Programme:Electrical Engineering MSc (60353)
Link to this item:http://purl.utwente.nl/essays/70404
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