X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver

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dc.contributor.advisorGeschke, Rianaen_ZA
dc.contributor.authorMalan, Jocias Aen_ZA
dc.date.accessioned2018-05-07T14:16:03Z
dc.date.available2018-05-07T14:16:03Z
dc.date.issued2018en_ZA
dc.description.abstractThe MeerKAT Radio Telescope is a 64 element antenna array under construction in South Africa. This array will be used to observe radiation from celestial sources at radio frequencies. Once completed, this radio telescope will be the largest and most sensitive radio telescope in the Southern hemisphere. MeerKAT is being designed to observe radio signals produced by celestial sources at UHF-, L-, S- and X-band frequencies. With the development of the X-band receivers for MeerKAT scheduled to start in the near future, research is required to determine an optimum receiver design for this frequency band. There are two architecture options available for digitization of this band namely direct digitization of the entire band or digitization of a portion of the frequency band using a heterodyne configuration. In this thesis, both these options are investigated to determine the feasibility of both these architectures. A key outcome of this investigation will be the derivation of the specifications of the anti-aliasing filter used in a direct digitization receiver as well as the image reject filter used in the heterodyne receiver. The design of a wideband microwave filter capable of meeting these specifications is also presented. To conclude this investigation, the impact of the designed filter on the performance of the system is presented.en_ZA
dc.identifier.apacitationMalan, J. A. (2018). <i>X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering. Retrieved from http://hdl.handle.net/11427/27969en_ZA
dc.identifier.chicagocitationMalan, Jocias A. <i>"X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2018. http://hdl.handle.net/11427/27969en_ZA
dc.identifier.citationMalan, J. 2018. X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Malan, Jocias A AB - The MeerKAT Radio Telescope is a 64 element antenna array under construction in South Africa. This array will be used to observe radiation from celestial sources at radio frequencies. Once completed, this radio telescope will be the largest and most sensitive radio telescope in the Southern hemisphere. MeerKAT is being designed to observe radio signals produced by celestial sources at UHF-, L-, S- and X-band frequencies. With the development of the X-band receivers for MeerKAT scheduled to start in the near future, research is required to determine an optimum receiver design for this frequency band. There are two architecture options available for digitization of this band namely direct digitization of the entire band or digitization of a portion of the frequency band using a heterodyne configuration. In this thesis, both these options are investigated to determine the feasibility of both these architectures. A key outcome of this investigation will be the derivation of the specifications of the anti-aliasing filter used in a direct digitization receiver as well as the image reject filter used in the heterodyne receiver. The design of a wideband microwave filter capable of meeting these specifications is also presented. To conclude this investigation, the impact of the designed filter on the performance of the system is presented. DA - 2018 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2018 T1 - X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver TI - X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver UR - http://hdl.handle.net/11427/27969 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/27969
dc.identifier.vancouvercitationMalan JA. X-band digitization systems aspects and filters for MeerKAT radio astronomy receiver. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Electrical Engineering, 2018 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/27969en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Electrical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherElectrical Engineeringen_ZA
dc.titleX-band digitization systems aspects and filters for MeerKAT radio astronomy receiveren_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMSc (Eng)en_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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