A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers
| dc.contributor.advisor | Schonken, Willem | |
| dc.contributor.author | Newton, Wesley | |
| dc.date.accessioned | 2023-07-14T08:55:45Z | |
| dc.date.available | 2023-07-14T08:55:45Z | |
| dc.date.issued | 2023 | |
| dc.date.updated | 2023-07-14T08:55:13Z | |
| dc.description.abstract | This dissertation discusses how the receiver and the LNA contained within the receiver are the major contributors to the sensitivity. Furthermore, a method for testing and determining the equivalent noise temperature of a cryogenic LNA operating at a physical temperature of 20 K is selected and presented. This method was tested at the Klerefontein support base and the measurements allowed conclusions to be drawn that show that the uncertainty was unacceptable due to a few factors. One of the factors is the thermal gradient across the attenuator. This was investigated via a limited thermal study and a solution was proposed and implemented. | |
| dc.identifier.apacitation | Newton, W. (2023). <i>A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers</i>. (). ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/38101 | en_ZA |
| dc.identifier.chicagocitation | Newton, Wesley. <i>"A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers."</i> ., ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2023. http://hdl.handle.net/11427/38101 | en_ZA |
| dc.identifier.citation | Newton, W. 2023. A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers. . ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering. http://hdl.handle.net/11427/38101 | en_ZA |
| dc.identifier.ris | TY - Master Thesis AU - Newton, Wesley AB - This dissertation discusses how the receiver and the LNA contained within the receiver are the major contributors to the sensitivity. Furthermore, a method for testing and determining the equivalent noise temperature of a cryogenic LNA operating at a physical temperature of 20 K is selected and presented. This method was tested at the Klerefontein support base and the measurements allowed conclusions to be drawn that show that the uncertainty was unacceptable due to a few factors. One of the factors is the thermal gradient across the attenuator. This was investigated via a limited thermal study and a solution was proposed and implemented. DA - 2023_ DB - OpenUCT DP - University of Cape Town KW - Engineering LK - https://open.uct.ac.za PY - 2023 T1 - A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers TI - A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers UR - http://hdl.handle.net/11427/38101 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/38101 | |
| dc.identifier.vancouvercitation | Newton W. A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers. []. ,Faculty of Engineering and the Built Environment ,Department of Electrical Engineering, 2023 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/38101 | en_ZA |
| dc.language.rfc3066 | eng | |
| dc.publisher.department | Department of Electrical Engineering | |
| dc.publisher.faculty | Faculty of Engineering and the Built Environment | |
| dc.subject | Engineering | |
| dc.title | A Test and Characterisation Facility for Cryogenic Low Noise Amplifiers | |
| dc.type | Master Thesis | |
| dc.type.qualificationlevel | Masters | |
| dc.type.qualificationlevel | MSc |