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The Design of an Anti-Aliasing Filter for the Next Generation Digitiser
MeerKAT, is a 64-element radio astronomy antenna array which has been recently constructed in the Northern Cape Province of South Africa. It serves as South Africa's contribution towards the international Square Kilometre Array (SKA) project. The MeerKAT array has been designed to observe radio sign...
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| Format: | Thesis |
| Language: | English |
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Department of Electrical Engineering
2023
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| _version_ | 1867613230402109440 |
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| access_status_str | Open Access |
| author | Theunissen, Edroy |
| author2 | Schonken, Willem |
| author_browse | Schonken, Willem Theunissen, Edroy |
| author_facet | Schonken, Willem Theunissen, Edroy |
| author_sort | Theunissen, Edroy |
| collection | Thesis |
| description | MeerKAT, is a 64-element radio astronomy antenna array which has been recently constructed in the Northern Cape Province of South Africa. It serves as South Africa's contribution towards the international Square Kilometre Array (SKA) project. The MeerKAT array has been designed to observe radio signals produced by celestial sources at UHF-Band, L-Band, S-Band and X-Band frequencies. The first phase of the construction included the design, development and integration of the UHF-Band, L-Band and S-band Receivers, whilst the X-band design has been superseded by the incorporation of the next phase of the SKA international project. In preparation of the next the roll-out, research is required to determine optimal wideband filter topologies suitable for direct digitisation of signal frequencies over the frequency range of 3-6 GHz. In this thesis, exploration of suitable wideband planar filters is performed, noting those with an improved out-of-band rejection. The outcome of the investigation leads into the design and development of the suitable wideband planar filter based on key performance specifications. The performance of the manufactured wideband planar filter is then compared to the theoretical design, and validated against the key performance requirements. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/38186 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:50.328Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2023 |
| publishDateRange | 2023 |
| publishDateSort | 2023 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/38186 The Design of an Anti-Aliasing Filter for the Next Generation Digitiser Theunissen, Edroy Schonken, Willem Malan, J.A Electrical Engineering MeerKAT, is a 64-element radio astronomy antenna array which has been recently constructed in the Northern Cape Province of South Africa. It serves as South Africa's contribution towards the international Square Kilometre Array (SKA) project. The MeerKAT array has been designed to observe radio signals produced by celestial sources at UHF-Band, L-Band, S-Band and X-Band frequencies. The first phase of the construction included the design, development and integration of the UHF-Band, L-Band and S-band Receivers, whilst the X-band design has been superseded by the incorporation of the next phase of the SKA international project. In preparation of the next the roll-out, research is required to determine optimal wideband filter topologies suitable for direct digitisation of signal frequencies over the frequency range of 3-6 GHz. In this thesis, exploration of suitable wideband planar filters is performed, noting those with an improved out-of-band rejection. The outcome of the investigation leads into the design and development of the suitable wideband planar filter based on key performance specifications. The performance of the manufactured wideband planar filter is then compared to the theoretical design, and validated against the key performance requirements. 2023-07-30T08:25:40Z 2023-07-30T08:25:40Z 2023 2023-07-30T08:24:47Z Master Thesis Masters MSc http://hdl.handle.net/11427/38186 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment |
| spellingShingle | Electrical Engineering Theunissen, Edroy The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| thesis_degree_str | Master's |
| title | The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| title_full | The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| title_fullStr | The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| title_full_unstemmed | The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| title_short | The Design of an Anti-Aliasing Filter for the Next Generation Digitiser |
| title_sort | design of an anti aliasing filter for the next generation digitiser |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/38186 |
| work_keys_str_mv | AT theunissenedroy thedesignofanantialiasingfilterforthenextgenerationdigitiser AT theunissenedroy designofanantialiasingfilterforthenextgenerationdigitiser |